{"title":"Charge Controllers","description":"\u003ch2\u003eSolar Charge Controllers for Off-Grid Power Systems\u003c\/h2\u003e\n\u003cp\u003eExplore Sunvivae solar charge controllers designed to manage power between compatible solar panels and battery systems. A charge controller helps regulate solar charging, protect batteries and support more reliable operation in RV, camping and off-grid solar power setups.\u003c\/p\u003e\n\u003ch3\u003eMPPT Solar Charge Controllers\u003c\/h3\u003e\n\u003cp\u003eMPPT solar charge controllers are designed to track the available power from a solar array and convert it into suitable charging power for compatible batteries. Depending on the model, controllers may support multiple system voltages, battery types, LCD monitoring and configurable charging parameters.\u003c\/p\u003e\n\u003ch3\u003eSolar Charging for RV \u0026amp; Off-Grid Systems\u003c\/h3\u003e\n\u003cp\u003eSolar charge controllers can be used in RVs, vans, cabins and other off-grid energy systems. They provide an important connection between solar panels and battery storage while helping manage charging conditions as sunlight and system demand change.\u003c\/p\u003e\n\u003ch3\u003eHow to Choose a Solar Charge Controller\u003c\/h3\u003e\n\u003cp\u003eWhen selecting a solar charge controller, check the system voltage, rated charging current, maximum PV input voltage and power, supported battery type and solar array specifications. The controller must be compatible with both the solar panels and battery system.\u003c\/p\u003e\n\u003ch3\u003eBuild a Compatible Solar Power System\u003c\/h3\u003e\n\u003cp\u003ePair a Sunvivae solar charge controller with compatible solar panels and battery equipment to build a practical charging system for RV, outdoor and off-grid applications. Always verify voltage, current and power limits before connecting system components.\u003c\/p\u003e","products":[{"product_id":"30a-pwm-solar-charge-controller-12v-24v","title":"Sunvivae 30A PWM Solar Charge Controller for 12V\/24V Batteries with LCD \u0026 Dual USB","description":"\u003cdiv class=\"sv-pwm30\"\u003e\n\u003cstyle\u003e\n.sv-pwm30{--o:#f26a21;--ink:#17212b;--muted:#62707b;--pale:#f5f7f8;--line:#dfe5e8;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.6;max-width:1180px;margin:auto}.sv-pwm30 *{box-sizing:border-box}.sv-pwm30 img{display:block;width:100%;height:auto;border-radius:18px}.sv-pwm30 h2,.sv-pwm30 h3,.sv-pwm30 p{margin-top:0}.sv-pwm30 h2{font-size:clamp(29px,4vw,46px);line-height:1.12;margin-bottom:14px}.sv-pwm30 h3{font-size:21px;line-height:1.25;margin-bottom:8px}.sv-pwm30 .orange{color:var(--o)}.sv-pwm30 .eyebrow{color:var(--o);text-transform:uppercase;font-size:13px;font-weight:800;letter-spacing:1.4px;margin-bottom:9px}.sv-pwm30 .lead{font-size:18px;color:var(--muted)}.sv-pwm30 .section{padding:52px 0}.sv-pwm30 .center{text-align:center;max-width:800px;margin:0 auto 28px}.sv-pwm30 .hero{padding:32px 0 48px;text-align:center}.sv-pwm30 .hero .lead{max-width:780px;margin-left:auto;margin-right:auto}.sv-pwm30 .chips{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin:22px 0}.sv-pwm30 .chip{background:#fff3eb;border:1px solid #ffd3ba;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}.sv-pwm30 .band{background:var(--ink);color:#fff;border-radius:20px;padding:27px 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.sv-pwm30 .stat{padding:0 16px;border-right:1px solid #3a4651}.sv-pwm30 .stat:last-child{border:0}.sv-pwm30 .stat strong{display:block;color:#ff8d4d;font-size:24px;line-height:1.2}.sv-pwm30 .stat span{font-size:13px;color:#d9e0e5}.sv-pwm30 .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}.sv-pwm30 .card{background:var(--pale);border:1px solid var(--line);border-radius:18px;padding:24px}.sv-pwm30 .card p{color:var(--muted);margin-bottom:0}.sv-pwm30 .split{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.sv-pwm30 .panel{background:var(--pale);border-radius:20px;padding:29px}.sv-pwm30 ul{padding-left:20px}.sv-pwm30 li{margin:7px 0}.sv-pwm30 .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}.sv-pwm30 .step{border:1px solid var(--line);border-radius:15px;padding:20px;background:#fff}.sv-pwm30 .step b{display:block;color:var(--o);font-size:12px;letter-spacing:.8px;margin-bottom:5px}.sv-pwm30 .warning{background:#fff7e8;border-left:4px solid #f3a321;border-radius:10px;padding:15px 17px;margin-top:18px}.sv-pwm30 .danger{background:#fff0ed;border-left:4px solid #d94a32;border-radius:10px;padding:15px 17px;margin-top:18px}.sv-pwm30 table{width:100%;border-collapse:collapse;background:#fff;border-radius:15px;overflow:hidden}.sv-pwm30 th,.sv-pwm30 td{text-align:left;border-bottom:1px solid var(--line);padding:12px 14px}.sv-pwm30 th{width:44%;color:var(--muted)}.sv-pwm30 .small{font-size:12px;color:var(--muted)}.sv-pwm30 details{border-top:1px solid var(--line);padding:15px 0}.sv-pwm30 summary{font-weight:700;cursor:pointer}.sv-pwm30 details p{color:var(--muted);padding-top:8px;margin-bottom:0}.sv-pwm30 .cta{margin:50px 0 15px;padding:38px;background:linear-gradient(135deg,#202b35,#0d151c);color:#fff;text-align:center;border-radius:22px}.sv-pwm30 .btn{display:inline-block;background:var(--o);color:#fff!important;text-decoration:none;font-weight:800;padding:12px 23px;border-radius:999px}.sv-pwm30 .media{margin-top:28px}\n@media(max-width:760px){.sv-pwm30 .section{padding:37px 0}.sv-pwm30 .band{grid-template-columns:1fr 1fr}.sv-pwm30 .stat:nth-child(2){border-right:0}.sv-pwm30 .grid3,.sv-pwm30 .split,.sv-pwm30 .steps{grid-template-columns:1fr}.sv-pwm30 h2{font-size:30px}.sv-pwm30 .lead{font-size:16px}.sv-pwm30 .panel{padding:21px}}\n\u003c\/style\u003e\n\n\u003csection class=\"hero\"\u003e\n  \u003cp class=\"eyebrow\"\u003e30A PWM Solar Charge Controller\u003c\/p\u003e\n  \u003ch2\u003eSmarter Charging for \u003cspan class=\"orange\"\u003e12V \u0026amp; 24V\u003c\/span\u003e Solar Systems\u003c\/h2\u003e\n  \u003cp class=\"lead\"\u003eManage solar charging, battery status and compatible DC loads from one compact controller with automatic system-voltage recognition, an LCD display and adjustable operating parameters.\u003c\/p\u003e\n  \u003cdiv class=\"chips\"\u003e\n\u003cspan class=\"chip\"\u003e30A Rated Charging\u003c\/span\u003e\u003cspan class=\"chip\"\u003e12V \/ 24V Auto Recognition\u003c\/span\u003e\u003cspan class=\"chip\"\u003e3-Stage PWM Charging\u003c\/span\u003e\u003cspan class=\"chip\"\u003eLCD Monitoring\u003c\/span\u003e\u003cspan class=\"chip\"\u003eDual USB Output\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"band\"\u003e\n  \u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003e30A\u003c\/strong\u003e\u003cspan\u003erated controller version\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003e12V \/ 24V\u003c\/strong\u003e\u003cspan\u003eautomatic system recognition\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003ePWM\u003c\/strong\u003e\u003cspan\u003ethree-stage charging management\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003eLCD\u003c\/strong\u003e\u003cspan\u003esystem information at a glance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"section\"\u003e\n  \u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eControlled Battery Charging\u003c\/p\u003e\n\u003ch2\u003eThree Stages, One Automatic Process\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003ePWM charging management adjusts the charging process as the battery approaches full charge, helping support stable everyday operation and battery care.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"grid3\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003e1. Boost Charging\u003c\/h3\u003e\n\u003cp\u003eDelivers available charging current during the main charging stage, subject to sunlight, battery condition and system limits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003e2. Battery-Specific Stage\u003c\/h3\u003e\n\u003cp\u003eCharging behavior depends on the battery type and selected parameters. Equalization must only be used when the battery manufacturer allows it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003e3. Float Maintenance\u003c\/h3\u003e\n\u003cp\u003eMaintains a charged compatible lead-acid battery at an appropriate voltage instead of continuously applying maximum charge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"warning\"\u003e\n\u003cstrong\u003eBattery-mode reminder:\u003c\/strong\u003e Lithium and LiFePO4 batteries require the correct charging profile and voltage settings. Do not use lead-acid equalization settings with lithium batteries.\u003c\/div\u003e\n  \u003cdiv class=\"media\"\u003e\u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/3_5d85f7ea-8763-44fc-90ef-d17e37ec7421.png?v=1787906633\u0026amp;width=1400\" alt=\"Three-stage PWM solar battery charging process\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"section split\"\u003e\n  \u003cdiv\u003e\n\u003cp class=\"eyebrow\"\u003eLCD Monitoring\u003c\/p\u003e\n\u003ch2\u003eSystem Status at a Glance\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eView solar input, battery status, load information and operating icons from the front display. Three buttons provide access to supported settings and DC-load control.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolar charging status\u003c\/li\u003e\n\u003cli\u003eBattery voltage and approximate charge status\u003c\/li\u003e\n\u003cli\u003eDC-load status\u003c\/li\u003e\n\u003cli\u003eSystem-voltage and operating indicators\u003c\/li\u003e\n\u003cli\u003eAutomatic parameter memory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"small\"\u003eBattery state-of-charge icons are voltage-based estimates and may not equal a laboratory capacity measurement.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/4_74ac3578-66d2-4f09-9b59-ec17acff25b2.png?v=1787906633\u0026amp;width=1200\" alt=\"LCD display and three-button controls on Sunvivae 30A PWM solar controller\" loading=\"lazy\"\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"section\"\u003e\n  \u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eCorrect Connection Order\u003c\/p\u003e\n\u003ch2\u003eBattery First. Solar Second. Load Last.\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eThe battery powers the controller and allows it to identify the system voltage before solar input is connected.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"steps\"\u003e\n\u003cdiv class=\"step\"\u003e\n\u003cb\u003eSTEP 1\u003c\/b\u003e\u003cstrong\u003eConnect the Battery\u003c\/strong\u003e\u003cbr\u003eConfirm 12V or 24V battery voltage and correct polarity.\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003cb\u003eSTEP 2\u003c\/b\u003e\u003cstrong\u003eConnect the Solar Panel\u003c\/strong\u003e\u003cbr\u003eConfirm array voltage, polarity and controller input compatibility.\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003cb\u003eSTEP 3\u003c\/b\u003e\u003cstrong\u003eConnect a DC Load\u003c\/strong\u003e\u003cbr\u003eOptional—only for a compatible low-voltage DC load within the output rating.\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"danger\"\u003e\n\u003cstrong\u003eDisconnect in reverse order:\u003c\/strong\u003e remove the DC load, then solar input, and disconnect the battery last. Never connect an inverter to the controller's load terminals; connect it to the battery with correctly sized protection and wiring.\u003c\/div\u003e\n  \u003cdiv class=\"media\"\u003e\u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/8_b648a94f-3460-4771-bf0e-9a851b367230.png?v=1787906633\u0026amp;width=1400\" alt=\"Correct battery solar panel and DC load wiring order for PWM charge controller\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"section split\"\u003e\n  \u003cdiv class=\"panel\"\u003e\n\u003cp class=\"eyebrow\"\u003eFlexible Controls\u003c\/p\u003e\n\u003ch2\u003eBuilt for Practical Off-Grid Systems\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic recognition of 12V or 24V systems\u003c\/li\u003e\n\u003cli\u003eAdjustable supported charge and discharge parameters\u003c\/li\u003e\n\u003cli\u003eDual USB output rated 5V \/ 2A total\u003c\/li\u003e\n\u003cli\u003eClearly labeled screw terminals\u003c\/li\u003e\n\u003cli\u003eCompact housing with four mounting points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"small\"\u003eUSB power and load output depend on battery connection and controller settings. The controller does not generate or store electricity.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"panel\"\u003e\n\u003ch3\u003eClear, Compact Interface\u003c\/h3\u003e\n\u003cp\u003eThe front layout brings the LCD, three operating buttons, six clearly marked screw terminals and dual USB ports together in one compact housing.\u003c\/p\u003e\n\u003cp class=\"small\"\u003eUse correctly sized copper conductors, tighten every terminal securely and protect the circuit with appropriately rated overcurrent protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"section\"\u003e\n  \u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eSystem Compatibility\u003c\/p\u003e\n\u003ch2\u003eCheck Every Component Before Connecting\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eThis controller is intended for compatible 12V or 24V off-grid battery systems—not grid-tied solar installations or direct panel-to-appliance use.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"grid3\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eSolar Array\u003c\/h3\u003e\n\u003cp\u003eUse a solar array whose open-circuit voltage and short-circuit current remain within the limits printed on the controller or supplied manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eBattery Bank\u003c\/h3\u003e\n\u003cp\u003eSelect the correct profile and charging voltages for the exact lead-acid, lithium-ion or LiFePO4 battery being used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eDC Load\u003c\/h3\u003e\n\u003cp\u003eOnly connect compatible 12V\/24V DC loads within the controller's load-output rating. High-surge equipment should connect appropriately at the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"media\"\u003e\u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/10_abcc3c15-c22d-4ea0-9738-6a7a80a043e8.png?v=1787906633\u0026amp;width=1400\" alt=\"Compatible solar panels batteries and DC loads for 12V and 24V solar controller\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"section split\"\u003e\n  \u003cdiv\u003e\n\u003cp class=\"eyebrow\"\u003eConfirmed Product Details\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eThe selected listing is the 30A 12V\/24V version. Specifications for other current or 48V versions do not apply.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003cdiv\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eController type\u003c\/th\u003e\n\u003ctd\u003ePWM solar charge controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSelected version\u003c\/th\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem voltage\u003c\/th\u003e\n\u003ctd\u003e12V \/ 24V automatic recognition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCharging method\u003c\/th\u003e\n\u003ctd\u003e3-stage PWM management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eLCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControls\u003c\/th\u003e\n\u003ctd\u003e3-button operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSB output\u003c\/th\u003e\n\u003ctd\u003eDual USB, 5V \/ 2A total\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupported batteries\u003c\/th\u003e\n\u003ctd\u003eCompatible lead-acid, lithium-ion and LiFePO4 batteries with correct settings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003eIndoor, dry and ventilated location\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp class=\"small\" style=\"margin-top:10px\"\u003eMaximum PV open-circuit voltage, maximum recommended solar wattage, load current and model-specific charging voltages must be confirmed from the label\/manual supplied with the product before system design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"section\"\u003e\n  \u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003ch2\u003eBefore You Install\u003c\/h2\u003e\n\u003c\/div\u003e\n  \u003cdetails\u003e\u003csummary\u003eIs this an MPPT controller?\u003c\/summary\u003e\u003cp\u003eNo. This is a PWM solar charge controller. It should not be advertised as MPPT.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan it automatically recognize 12V and 24V systems?\u003c\/summary\u003e\u003cp\u003eYes. Connect the battery first so the controller can power on and recognize system voltage before connecting the solar array.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I use it with lithium or LiFePO4 batteries?\u003c\/summary\u003e\u003cp\u003eThe manufacturer lists compatible lithium and LiFePO4 operation, but you must select the correct battery mode and confirm all charge-voltage settings against the battery manufacturer's requirements. A battery with its own suitable BMS is recommended.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I connect two 100W solar panels?\u003c\/summary\u003e\u003cp\u003ePotentially, but compatibility depends on the panels' series or parallel wiring, Voc, Isc and the controller's model-specific PV limits. Do not decide compatibility from the 30A label alone.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eCan I connect an inverter to the load terminals?\u003c\/summary\u003e\u003cp\u003eNo. Inverters and other high-surge loads should not be connected to the controller's load terminals. Follow the inverter and battery manufacturers' instructions and use correctly sized fusing and cables.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003eIs the controller waterproof?\u003c\/summary\u003e\u003cp\u003eNo waterproof rating has been confirmed. Install it indoors in a dry, ventilated location away from rain, condensation, excessive heat and flammable materials.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"cta\"\u003e\u003ch2\u003eQuestions Before You Connect?\u003c\/h2\u003e\n\u003cp\u003eSend us your solar-panel Voc\/Isc, battery voltage and battery chemistry. We will help you check the essential compatibility points.\u003c\/p\u003e\n\u003ca class=\"btn\" href=\"https:\/\/www.sunvivae.com\/pages\/contact-us\"\u003eContact Sunvivae\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sunvivae","offers":[{"title":"Default Title","offer_id":44956541157469,"sku":"GF-014-30A","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/sunvivae-30a-pwm-solar-charge-controller-for-12v24v-batteries-with-lcd-dual-usb-1289355.png?v=1789885510"},{"product_id":"20a-mppt-solar-charge-controller-12v-24v","title":"Sunvivae 20A MPPT Solar Charge Controller for 12V\/24V Batteries with LCD \u0026 Dual USB","description":"\u003cstyle\u003e\n.sv-mppt20{--o:#f26a21;--ink:#17212b;--muted:#61707b;--pale:#f5f7f8;--line:#dfe5e8;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.6;max-width:1180px;margin:auto}.sv-mppt20 *{box-sizing:border-box}.sv-mppt20 img{display:block;width:100%;height:auto;border-radius:18px}.sv-mppt20 h2,.sv-mppt20 h3,.sv-mppt20 p{margin-top:0}.sv-mppt20 h2{font-size:clamp(29px,4vw,46px);line-height:1.12;margin-bottom:14px}.sv-mppt20 h3{font-size:21px;line-height:1.25;margin-bottom:8px}.sv-mppt20 .orange{color:var(--o)}.sv-mppt20 .eyebrow{color:var(--o);font-size:13px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;margin-bottom:9px}.sv-mppt20 .lead{font-size:18px;color:var(--muted)}.sv-mppt20 .hero{text-align:center;padding:30px 0 48px}.sv-mppt20 .hero .lead{max-width:790px;margin-left:auto;margin-right:auto}.sv-mppt20 .chips{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin-top:22px}.sv-mppt20 .chip{background:#fff2ea;border:1px solid #ffd3ba;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}.sv-mppt20 .section{padding:52px 0}.sv-mppt20 .center{text-align:center;max-width:810px;margin:0 auto 28px}.sv-mppt20 .band{background:var(--ink);color:#fff;border-radius:20px;padding:27px 18px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.sv-mppt20 .stat{padding:0 16px;border-right:1px solid #3b4650}.sv-mppt20 .stat:last-child{border:0}.sv-mppt20 .stat strong{display:block;color:#ff8b4b;font-size:24px;line-height:1.2}.sv-mppt20 .stat span{font-size:13px;color:#d9e0e5}.sv-mppt20 .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}.sv-mppt20 .card{background:var(--pale);border:1px solid var(--line);border-radius:18px;padding:24px}.sv-mppt20 .card p{color:var(--muted);margin-bottom:0}.sv-mppt20 .split{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.sv-mppt20 .panel{background:var(--pale);border-radius:20px;padding:29px}.sv-mppt20 ul{padding-left:20px}.sv-mppt20 li{margin:7px 0}.sv-mppt20 .media{margin-top:28px}.sv-mppt20 .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin:23px 0}.sv-mppt20 .step{border:1px solid var(--line);border-radius:15px;padding:19px;background:#fff}.sv-mppt20 .step b{display:block;color:var(--o);font-size:12px;letter-spacing:.8px;margin-bottom:4px}.sv-mppt20 .warning{background:#fff7e8;border-left:4px solid #f0a020;border-radius:10px;padding:15px 17px;margin-top:18px}.sv-mppt20 .danger{background:#fff0ed;border-left:4px solid #d94a32;border-radius:10px;padding:15px 17px;margin-top:18px}.sv-mppt20 table{width:100%;border-collapse:collapse;background:#fff;border-radius:15px;overflow:hidden}.sv-mppt20 th,.sv-mppt20 td{text-align:left;border-bottom:1px solid var(--line);padding:11px 14px}.sv-mppt20 th{width:47%;color:var(--muted)}.sv-mppt20 .small{font-size:12px;color:var(--muted)}.sv-mppt20 details{border-top:1px solid var(--line);padding:15px 0}.sv-mppt20 summary{font-weight:700;cursor:pointer}.sv-mppt20 details p{color:var(--muted);padding-top:8px;margin-bottom:0}.sv-mppt20 .cta{margin:50px 0 15px;padding:38px;background:linear-gradient(135deg,#202b35,#0d151c);color:#fff;text-align:center;border-radius:22px}.sv-mppt20 .btn{display:inline-block;background:var(--o);color:#fff!important;text-decoration:none;font-weight:800;padding:12px 23px;border-radius:999px}\n@media(max-width:760px){.sv-mppt20 .section{padding:37px 0}.sv-mppt20 .band{grid-template-columns:1fr 1fr}.sv-mppt20 .stat:nth-child(2){border-right:0}.sv-mppt20 .grid3,.sv-mppt20 .split,.sv-mppt20 .steps{grid-template-columns:1fr}.sv-mppt20 h2{font-size:30px}.sv-mppt20 .lead{font-size:16px}.sv-mppt20 .panel{padding:21px}}\n\u003c\/style\u003e\n\u003cdiv class=\"sv-mppt20\"\u003e\n\u003csection class=\"hero\"\u003e\n\u003cp class=\"eyebrow\"\u003e20A MPPT Solar Charge Controller\u003c\/p\u003e\n\u003ch2\u003eHarvest More Solar Power for \u003cspan class=\"orange\"\u003e12V \u0026amp; 24V\u003c\/span\u003e Battery Systems\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eThe Sunvivae 1220 combines true maximum power point tracking, multi-battery charging profiles, LCD monitoring and programmable DC-load control in one compact off-grid controller.\u003c\/p\u003e\n\u003cdiv class=\"chips\"\u003e\n\u003cspan class=\"chip\"\u003e20A Rated Charging\u003c\/span\u003e\u003cspan class=\"chip\"\u003e12V \/ 24V Auto Recognition\u003c\/span\u003e\u003cspan class=\"chip\"\u003eUnder 60V PV Voc\u003c\/span\u003e\u003cspan class=\"chip\"\u003eUp to 260W \/ 520W PV\u003c\/span\u003e\u003cspan class=\"chip\"\u003eTwo 5V \/ 1A USB Ports\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"band\"\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003e≥99.5%\u003c\/strong\u003e\u003cspan\u003emaximum-point tracking efficiency\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003eUp to 97%\u003c\/strong\u003e\u003cspan\u003epeak conversion efficiency\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003e20A\u003c\/strong\u003e\u003cspan\u003erated charge and load current\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"stat\"\u003e\n\u003cstrong\u003eIP30\u003c\/strong\u003e\u003cspan\u003eindoor enclosure protection class\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eMaximum Power Point Tracking\u003c\/p\u003e\n\u003ch2\u003eMake Better Use of Available Sunlight\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eMPPT technology continuously searches for the solar array's maximum power point and converts the available PV power into controlled battery charging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid3\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eFast Tracking\u003c\/h3\u003e\n\u003cp\u003eTracks changing solar conditions while maintaining maximum-point tracking efficiency of at least 99.5%.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eHigh Conversion\u003c\/h3\u003e\n\u003cp\u003eQuality power components provide maximum conversion efficiency up to 97% under suitable operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eAutomatic Voltage\u003c\/h3\u003e\n\u003cp\u003eRecognizes compatible 12V or 24V battery systems after the battery is connected first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"media\"\u003e\u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/2_fd4b9fde-b987-4031-8101-54d25d609507.png?v=1787979927\u0026amp;width=1400\" alt=\"20A MPPT solar charge controller harvesting power for an off-grid RV system\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section split\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"eyebrow\"\u003eMulti-Battery Support\u003c\/p\u003e\n\u003ch2\u003eCharge the Battery You Actually Use\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eSelectable profiles support common lead-acid and lithium battery configurations, with custom modes available for applications requiring verified manual settings.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGEL lead-acid\u003c\/li\u003e\n\u003cli\u003eSealed lead-acid\u003c\/li\u003e\n\u003cli\u003eFlooded lead-acid\u003c\/li\u003e\n\u003cli\u003e4S and 5S LiFePO4\u003c\/li\u003e\n\u003cli\u003e3S and 4S lithium-ion\u003c\/li\u003e\n\u003cli\u003eCustom lead-acid and lithium modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"small\"\u003eAlways confirm charge voltages with the battery manufacturer. Lithium batteries should include a compatible BMS. Set system voltage and battery type before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/4_9b9c3747-1a49-486d-9b05-5f663e4f3758.png?v=1787979928\u0026amp;width=1200\" alt=\"Compatible GEL sealed flooded LiFePO4 and lithium battery profiles\" loading=\"lazy\"\u003e\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eLCD Monitoring\u003c\/p\u003e\n\u003ch2\u003eSee Charging and System Status\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eThe LCD provides access to battery voltage, battery temperature, charging and discharging current, accumulated amp-hours, PV voltage, load mode and system settings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"media\"\u003e\u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/5_ba041da7-61c3-4d89-8ac2-9896b09d41ff.png?v=1787979928\u0026amp;width=1400\" alt=\"LCD monitoring display and controls on POW-Keeper1220 MPPT controller\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eCorrect Installation Sequence\u003c\/p\u003e\n\u003ch2\u003eBattery First. Solar Second. Load Last.\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eCorrect wiring order allows the controller to power on, recognize system voltage and apply the selected charging parameters safely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"steps\"\u003e\n\u003cdiv class=\"step\"\u003e\n\u003cb\u003eSTEP 1\u003c\/b\u003e\u003cstrong\u003eOpen Breakers\u003c\/strong\u003e\u003cbr\u003eEnsure the PV and battery cables are not energized.\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003cb\u003eSTEP 2\u003c\/b\u003e\u003cstrong\u003eConnect Battery\u003c\/strong\u003e\u003cbr\u003eObserve polarity, then close the battery breaker.\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003cb\u003eSTEP 3\u003c\/b\u003e\u003cstrong\u003eConnect Solar\u003c\/strong\u003e\u003cbr\u003eVerify PV Voc, then close the PV breaker.\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003cb\u003eSTEP 4\u003c\/b\u003e\u003cstrong\u003eConnect DC Load\u003c\/strong\u003e\u003cbr\u003eOptional and only within the load-output limits.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"danger\"\u003e\n\u003cstrong\u003eDo not connect an inverter to the LOAD terminals.\u003c\/strong\u003e Connect an inverter directly to the battery with correctly sized cable and circuit protection. Loose terminals can overheat; tighten all connections securely.\u003c\/div\u003e\n\u003cdiv class=\"media\"\u003e\u003cimg src=\"https:\/\/www.sunvivae.com\/cdn\/shop\/files\/7_cb12ce73-eb0c-4be1-9c78-8ad475b1c946.png?v=1787979928\u0026amp;width=1400\" alt=\"Battery first solar second and optional DC load wiring for MPPT controller\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eFlexible Load Automation\u003c\/p\u003e\n\u003ch2\u003eControl Compatible DC Loads Day and Night\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eProgrammable operating modes support manual DC-load control, dusk-to-dawn operation, timed lighting and reverse light control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid3\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eManual Mode\u003c\/h3\u003e\n\u003cp\u003eTurn the compatible DC load on or off manually from the controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eLight Control\u003c\/h3\u003e\n\u003cp\u003eAutomatically switch the load according to detected daylight conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eLight + Timer\u003c\/h3\u003e\n\u003cp\u003eRun the load for a configured period around night operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warning\"\u003e\n\u003cstrong\u003eLoad-output limit:\u003c\/strong\u003e the rated load current is 20A. Motors, pumps and other inductive loads can draw high startup current; confirm surge requirements before connecting them to LOAD.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section split\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"eyebrow\"\u003eVerified 20A Model Data\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp class=\"lead\"\u003eThese values apply to the Sunvivae1220 20A model. Specifications for the 30A and 40A models are different.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eSunvivae 1220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eController type\u003c\/th\u003e\n\u003ctd\u003eMPPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated charge current\u003c\/th\u003e\n\u003ctd\u003e20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated load current\u003c\/th\u003e\n\u003ctd\u003e20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem voltage\u003c\/th\u003e\n\u003ctd\u003e12V \/ 24V auto recognition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery voltage range\u003c\/th\u003e\n\u003ctd\u003e8–32V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum PV open-circuit voltage\u003c\/th\u003e\n\u003ctd\u003eLess than 60V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum PV input power\u003c\/th\u003e\n\u003ctd\u003e260W at 12V \/ 520W at 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSB output\u003c\/th\u003e\n\u003ctd\u003e2 × 5V \/ 1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStatic consumption\u003c\/th\u003e\n\u003ctd\u003e≤50mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e−20°C to +55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking humidity\u003c\/th\u003e\n\u003ctd\u003e≤90%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection class\u003c\/th\u003e\n\u003ctd\u003eIP30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrounding type\u003c\/th\u003e\n\u003ctd\u003eCommon positive \/ positive grounded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"small\" style=\"margin-top: 10px;\"\u003ePV voltage rises in cold weather. Calculate the array's cold-condition Voc and keep it safely below the controller's 60V maximum. Do not design a system that reaches the absolute limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eInstallation Environment\u003c\/p\u003e\n\u003ch2\u003eKeep It Cool, Dry and Ventilated\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid3\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eMount Vertically\u003c\/h3\u003e\n\u003cp\u003eInstall with the ports facing downward and leave clearance around the enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eAvoid Heat \u0026amp; Sun\u003c\/h3\u003e\n\u003cp\u003eKeep the controller away from direct sunlight and mount it on a non-combustible surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eIndoor Protection\u003c\/h3\u003e\n\u003cp\u003eIP30 is not waterproof. Protect the controller from rain, spray, condensation and conductive dust.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003cdiv class=\"center\"\u003e\n\u003cp class=\"eyebrow\"\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003ch2\u003eBefore You Connect\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it work with two 100W flexible solar panels?\u003c\/summary\u003e\n\u003cp\u003eYes. The previously specified two-panel set is best wired in series for this MPPT controller: approximately Voc 37.2V, Vmp 31.8V, Isc 6.6A and 200W. This provides suitable charging headroom for either a 12V or 24V battery system while remaining below the controller's verified power and voltage limits. Cold-weather Voc must still be calculated and kept safely below 60V. Parallel wiring is not suitable for charging a 24V battery and may provide insufficient voltage headroom near the upper charging voltage of a 12V battery.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy must the battery be connected first?\u003c\/summary\u003e\n\u003cp\u003eThe battery powers the controller and allows it to recognize 12V or 24V system voltage. After battery type and parameters are confirmed, connect the PV array.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I connect a 12V or 24V inverter to LOAD?\u003c\/summary\u003e\n\u003cp\u003eNo. Connect an inverter directly to the battery through appropriate cables, fuse or breaker, following the inverter and battery manufacturers' instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs it waterproof?\u003c\/summary\u003e\n\u003cp\u003eNo. Its enclosure is rated IP30. Install it indoors in a dry, ventilated location.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan the USB ports provide 2.4A?\u003c\/summary\u003e\n\u003cp\u003eThe verified manual specifies two 5V\/1A USB ports. The page does not advertise 2.4A USB output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection class=\"cta\"\u003e\n\u003ch2\u003eQuestions Before You Build?\u003c\/h2\u003e\n\u003cp\u003eSend us your panel Voc\/Isc, array wiring, battery voltage and battery chemistry. We will help you check the essential compatibility points.\u003c\/p\u003e\n\u003ca class=\"btn\" href=\"https:\/\/www.sunvivae.com\/pages\/contact-us\"\u003eContact Sunvivae\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sunvivae","offers":[{"title":"Default Title","offer_id":44959847743581,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/sunvivae-20a-mppt-solar-charge-controller-for-12v24v-batteries-with-lcd-dual-usb-5200433.png?v=1789885515"},{"product_id":"30a-mppt-solar-charge-controller-12v-24v","title":"Sunvivae 30A MPPT Solar Charge Controller, 12V\/24V Auto, 390W\/780W with LCD \u0026 Dual USB","description":"\u003c!-- Sunvivae 30A MPPT Solar Charge Controller — Shopify product description --\u003e\n\u003cstyle\u003e\n  .sv-mppt30{--orange:#f4511e;--navy:#102a43;--blue:#1769c2;--ink:#1b2430;--muted:#5c6773;--line:#e4e9ee;--soft:#f5f8fb;max-width:1120px;margin:0 auto;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.6}\n  .sv-mppt30 *{box-sizing:border-box}.sv-mppt30 h2,.sv-mppt30 h3,.sv-mppt30 p{margin-top:0}.sv-mppt30 h2{font-size:clamp(28px,4vw,44px);line-height:1.15;color:var(--navy);margin-bottom:16px}.sv-mppt30 h3{font-size:22px;line-height:1.25;color:var(--navy);margin-bottom:10px}.sv-mppt30 p{color:var(--muted)}\n  .sv-mppt30 .sv-hero{padding:52px 28px;text-align:center;background:linear-gradient(135deg,#fff 0%,#f1f6fb 100%);border-radius:22px;margin-bottom:24px}.sv-mppt30 .sv-kicker{color:var(--orange);font-size:14px;font-weight:800;letter-spacing:1.7px;text-transform:uppercase;margin-bottom:10px}.sv-mppt30 .sv-lead{max-width:800px;margin:0 auto 24px;font-size:18px}.sv-mppt30 .sv-pills{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.sv-mppt30 .sv-pill{padding:9px 14px;border:1px solid #cfd9e3;border-radius:999px;background:#fff;color:var(--navy);font-size:14px;font-weight:700}\n  .sv-mppt30 .sv-section{padding:48px 20px}.sv-mppt30 .sv-center{text-align:center;max-width:800px;margin-left:auto;margin-right:auto}.sv-mppt30 .sv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}.sv-mppt30 .sv-card{padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 7px 24px rgba(16,42,67,.06)}.sv-mppt30 .sv-num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;color:#fff;background:var(--orange);font-weight:800;margin-bottom:15px}\n  .sv-mppt30 .sv-media{display:block;width:100%;height:auto;border-radius:18px}.sv-mppt30 .sv-split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.sv-mppt30 .sv-checks{list-style:none;padding:0;margin:18px 0 0}.sv-mppt30 .sv-checks li{position:relative;padding:7px 0 7px 29px;color:var(--muted)}.sv-mppt30 .sv-checks li:before{content:'✓';position:absolute;left:0;color:var(--orange);font-weight:900}\n  .sv-mppt30 .sv-spec-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px}.sv-mppt30 table{width:100%;border-collapse:collapse;min-width:650px}.sv-mppt30 th,.sv-mppt30 td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left}.sv-mppt30 th{background:var(--navy);color:#fff;font-size:14px}.sv-mppt30 tr:last-child td{border-bottom:0}.sv-mppt30 td:nth-child(odd){font-weight:700;color:var(--navy)}\n  .sv-mppt30 .sv-alert{padding:24px;border-left:5px solid var(--orange);background:#fff6f1;border-radius:10px;margin-top:24px}.sv-mppt30 .sv-alert h3{color:#9b320d}.sv-mppt30 .sv-steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}.sv-mppt30 .sv-step{counter-increment:step;padding:22px;background:var(--soft);border-radius:14px}.sv-mppt30 .sv-step:before{content:counter(step);display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;margin-bottom:12px}\n  .sv-mppt30 details{border-bottom:1px solid var(--line);padding:17px 4px}.sv-mppt30 summary{cursor:pointer;font-weight:800;color:var(--navy)}.sv-mppt30 details p{padding-top:12px;margin-bottom:0}.sv-mppt30 .sv-contact{text-align:center;padding:38px 24px;background:var(--navy);border-radius:18px}.sv-mppt30 .sv-contact h2,.sv-mppt30 .sv-contact p{color:#fff}.sv-mppt30 .sv-btn{display:inline-block;padding:13px 24px;border-radius:8px;background:var(--orange);color:#fff!important;text-decoration:none;font-weight:800}\n  .sv-mppt30 .sv-note{font-size:13px;color:#6b7280;margin-top:12px}\n  @media(max-width:760px){.sv-mppt30 .sv-grid,.sv-mppt30 .sv-split,.sv-mppt30 .sv-steps{grid-template-columns:1fr}.sv-mppt30 .sv-section{padding:34px 12px}.sv-mppt30 .sv-hero{padding:36px 18px}.sv-mppt30 .sv-split{gap:22px}.sv-mppt30 .sv-split .sv-copy{order:-1}}\n\u003c\/style\u003e\n\n\u003cdiv class=\"sv-mppt30\"\u003e\n  \u003csection class=\"sv-hero\"\u003e\n    \u003cdiv class=\"sv-kicker\"\u003eSunvivae Off-Grid Power Control\u003c\/div\u003e\n    \u003ch2\u003eSmarter Solar Charging for 12V \u0026amp; 24V Systems\u003c\/h2\u003e\n    \u003cp class=\"sv-lead\"\u003eThe Sunvivae 30A MPPT solar charge controller automatically recognizes 12V or 24V battery systems and intelligently tracks available solar power for dependable off-grid charging.\u003c\/p\u003e\n    \u003cdiv class=\"sv-pills\"\u003e\n      \u003cspan class=\"sv-pill\"\u003e30A Rated Charge Current\u003c\/span\u003e\u003cspan class=\"sv-pill\"\u003e390W \/ 780W PV Input\u003c\/span\u003e\u003cspan class=\"sv-pill\"\u003ePV Voc \u0026lt;75V\u003c\/span\u003e\u003cspan class=\"sv-pill\"\u003eLead-Acid \u0026amp; Lithium\u003c\/span\u003e\u003cspan class=\"sv-pill\"\u003eLCD + Dual USB\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section\"\u003e\n    \u003cdiv class=\"sv-center\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eAdvanced MPPT Technology\u003c\/div\u003e\n\u003ch2\u003eHarvest More Available Solar Energy\u003c\/h2\u003e\n\u003cp\u003eFast maximum-power-point tracking responds to changing solar conditions, with tracking efficiency of at least 99.5% and maximum conversion efficiency up to 97%.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"sv-media\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/3_488b5fe9-58d7-4968-b21c-8018b524c5ef.png?v=1788068433\" alt=\"Sunvivae 30A MPPT solar charge controller tracking and conversion efficiency\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section\"\u003e\n    \u003cdiv class=\"sv-center\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eBuilt for Practical Systems\u003c\/div\u003e\n\u003ch2\u003ePowerful Capacity, Clear Limits\u003c\/h2\u003e\n\u003cp\u003eDesigned for RVs, cabins, boats and other off-grid battery systems when installed indoors in a dry, ventilated location.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"sv-grid\"\u003e\n      \u003cdiv class=\"sv-card\"\u003e\n\u003cdiv class=\"sv-num\"\u003e12V\u003c\/div\u003e\n\u003ch3\u003eUp to 390W PV\u003c\/h3\u003e\n\u003cp\u003eFor an automatically detected 12V battery system. Keep the array open-circuit voltage below 75V.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"sv-card\"\u003e\n\u003cdiv class=\"sv-num\"\u003e24V\u003c\/div\u003e\n\u003ch3\u003eUp to 780W PV\u003c\/h3\u003e\n\u003cp\u003eFor an automatically detected 24V battery system. Confirm all system components are correctly rated.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"sv-card\"\u003e\n\u003cdiv class=\"sv-num\"\u003e20A\u003c\/div\u003e\n\u003ch3\u003eControlled DC Load\u003c\/h3\u003e\n\u003cp\u003eThe dedicated LOAD output is rated at 20A for compatible DC loads—not for an inverter.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section sv-split\"\u003e\n    \u003cimg class=\"sv-media\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/5_f2135358-38c0-436b-af5f-0c5f9eb9adcc.png?v=1788068433\" alt=\"Compatible lead-acid and lithium battery types for 30A controller\"\u003e\n    \u003cdiv class=\"sv-copy\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eFlexible Battery Profiles\u003c\/div\u003e\n\u003ch2\u003eOne Controller for Multiple Battery Types\u003c\/h2\u003e\n\u003cp\u003eSelect the correct charging profile for your battery chemistry and follow the battery manufacturer’s voltage requirements.\u003c\/p\u003e\n\u003cul class=\"sv-checks\"\u003e\n\u003cli\u003eFlooded lead-acid batteries\u003c\/li\u003e\n\u003cli\u003eAGM and GEL batteries\u003c\/li\u003e\n\u003cli\u003eLiFePO4 and supported lithium batteries\u003c\/li\u003e\n\u003cli\u003eUser-defined charging parameters for compatible custom profiles\u003c\/li\u003e\n\u003cli\u003e8–32V supported battery-voltage range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section\"\u003e\n    \u003cdiv class=\"sv-center\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eIntelligent Load Management\u003c\/div\u003e\n\u003ch2\u003eFour Ways to Control Compatible DC Loads\u003c\/h2\u003e\n\u003cp\u003eChoose manual operation, sunset-to-sunrise control, timed night operation or reverse light control to match your application.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"sv-media\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/6A_5bcf2e6b-2daf-4290-8747-e63d68389a52.png?v=1788068433\" alt=\"Four load control modes on Sunvivae 30A MPPT controller\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section sv-split\"\u003e\n    \u003cdiv class=\"sv-copy\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eLCD Monitoring \u0026amp; USB Power\u003c\/div\u003e\n\u003ch2\u003eImportant System Information at a Glance\u003c\/h2\u003e\n\u003cp\u003eThe LCD interface provides system and operating information for straightforward setup and monitoring. Two 5V\/1A USB ports provide convenient power for compatible USB devices.\u003c\/p\u003e\n\u003cul class=\"sv-checks\"\u003e\n\u003cli\u003eBattery, PV charging and load-status indicators\u003c\/li\u003e\n\u003cli\u003eSystem voltage and controller-temperature information\u003c\/li\u003e\n\u003cli\u003eSimple two-button operation\u003c\/li\u003e\n\u003cli\u003eAutomatic setting memory\u003c\/li\u003e\n\u003cli\u003eDual 5V\/1A USB outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"sv-media\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/8_6775eee8-2f19-466f-ad26-ece10f91c892.png?v=1788068432\" alt=\"30A MPPT controller installed indoors in an off-grid RV system\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section\"\u003e\n    \u003cdiv class=\"sv-center\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ch2\u003e30A MPPT Controller Details\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"sv-spec-wrap\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePOW-Keeper1230\u003c\/td\u003e\n\u003ctd\u003eRated Charge Current\u003c\/td\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSystem Voltage\u003c\/td\u003e\n\u003ctd\u003e12V \/ 24V Auto\u003c\/td\u003e\n\u003ctd\u003eBattery Voltage Range\u003c\/td\u003e\n\u003ctd\u003e8–32V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaximum PV Voc\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;75V\u003c\/td\u003e\n\u003ctd\u003eMaximum PV Power\u003c\/td\u003e\n\u003ctd\u003e390W at 12V \/ 780W at 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRated DC Load Output\u003c\/td\u003e\n\u003ctd\u003e20A\u003c\/td\u003e\n\u003ctd\u003eUSB Output\u003c\/td\u003e\n\u003ctd\u003e2 × 5V\/1A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMPPT Tracking Efficiency\u003c\/td\u003e\n\u003ctd\u003e≥99.5%\u003c\/td\u003e\n\u003ctd\u003eMaximum Conversion Efficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 97%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eStatic Loss\u003c\/td\u003e\n\u003ctd\u003e≤50mA\u003c\/td\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP30\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e−20°C to +55°C\u003c\/td\u003e\n\u003ctd\u003eLCD Temperature Range\u003c\/td\u003e\n\u003ctd\u003e−20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWorking Humidity\u003c\/td\u003e\n\u003ctd\u003e≤90%, no condensation\u003c\/td\u003e\n\u003ctd\u003eDimensions \/ Net Weight\u003c\/td\u003e\n\u003ctd\u003e189 × 126 × 54 mm \/ 0.58 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp class=\"sv-note\"\u003ePV ratings are absolute system limits, not recommended targets. Array output varies with sunlight, temperature, wiring and panel orientation.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section\"\u003e\n    \u003cdiv class=\"sv-center\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eCorrect Connection Order\u003c\/div\u003e\n\u003ch2\u003eBattery First. Solar Second.\u003c\/h2\u003e\n\u003cp\u003eUse appropriately rated breakers or disconnects and keep them open while wiring.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"sv-steps\"\u003e\n\u003cdiv class=\"sv-step\"\u003e\n\u003ch3\u003eConnect the Battery\u003c\/h3\u003e\n\u003cp\u003eVerify polarity and battery voltage, connect the battery to the controller, then close the battery breaker so the controller powers on and detects system voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sv-step\"\u003e\n\u003ch3\u003eConnect the PV Array\u003c\/h3\u003e\n\u003cp\u003eConfirm array Voc remains below 75V under the coldest expected conditions. Connect PV wiring, then close the PV breaker.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sv-step\"\u003e\n\u003ch3\u003eConnect a DC Load\u003c\/h3\u003e\n\u003cp\u003eIf required, connect a compatible DC load within the 20A output rating. Connect an inverter directly to the battery with its own protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"sv-alert\"\u003e\n\u003ch3\u003eEssential Safety Notes\u003c\/h3\u003e\n\u003cul class=\"sv-checks\"\u003e\n\u003cli\u003eNever connect the solar panels before the battery.\u003c\/li\u003e\n\u003cli\u003eNever connect an inverter to the controller’s LOAD terminals.\u003c\/li\u003e\n\u003cli\u003eNever exceed the controller’s voltage, current or power ratings.\u003c\/li\u003e\n\u003cli\u003eInstall indoors in a dry, ventilated location; IP30 provides no water protection.\u003c\/li\u003e\n\u003cli\u003eUse correctly sized cable, fuses and breakers. Installation by a qualified person is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-section\"\u003e\u003cdiv class=\"sv-center\"\u003e\n\u003cdiv class=\"sv-kicker\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003ch2\u003eBefore You Connect\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdetails\u003e\u003csummary\u003eWill it automatically recognize 12V and 24V systems?\u003c\/summary\u003e\u003cp\u003eYes. Connect the battery first so the controller can power on and detect the system voltage before the PV array is connected.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I use lead-acid and lithium batteries?\u003c\/summary\u003e\u003cp\u003eIt supports suitable lead-acid and lithium profiles, including Flooded, AGM, GEL and LiFePO4. Always select the correct battery type and verify charging voltages with the battery manufacturer.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I connect a 75V solar array?\u003c\/summary\u003e\u003cp\u003eNo. The array open-circuit voltage must remain below 75V, including the voltage increase that occurs in cold weather. Leave an appropriate safety margin.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I connect an inverter to the LOAD output?\u003c\/summary\u003e\u003cp\u003eNo. An inverter must connect directly to the battery through properly sized cables and dedicated overcurrent protection. The controller’s LOAD output is for compatible DC loads up to its 20A rating.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan this controller be installed outside?\u003c\/summary\u003e\u003cp\u003eNo. Its IP30 protection class has no water-protection rating. Install it indoors in a dry, ventilated location with adequate clearance for heat dissipation.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eWhy can charging behavior change near the high-voltage disconnect point?\u003c\/summary\u003e\u003cp\u003eThe controller may limit voltage using PWM behavior near the high-voltage disconnect point to protect the battery. This is part of its protective control strategy.\u003c\/p\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sv-contact\"\u003e\u003ch2\u003eQuestions Before You Buy?\u003c\/h2\u003e\n\u003cp\u003eTell us your battery voltage, battery chemistry and solar-array specifications. We’ll help you check the basic controller fit before ordering.\u003c\/p\u003e\n\u003ca class=\"sv-btn\" href=\"https:\/\/www.sunvivae.com\/pages\/contact-us\"\u003eContact Sunvivae\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sunvivae","offers":[{"title":"Default Title","offer_id":44960663896157,"sku":"GF-016-MPPT30A","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/sunvivae-30a-mppt-solar-charge-controller-12v24v-auto-390w780w-with-lcd-dual-usb-6362029.png?v=1789885514"},{"product_id":"40a-mppt-solar-charge-controller-12v-24v","title":"Sunvivae 40A MPPT Solar Charge Controller, 12V\/24V Auto, 520W\/1040W with LCD \u0026 Dual USB","description":"\u003c!-- Sunvivae 40A MPPT Solar Charge Controller — Shopify product description --\u003e\n\u003cstyle\u003e\n.sv40{--o:#f4511e;--n:#102a43;--b:#1769c2;--t:#1c2530;--m:#5c6773;--l:#e2e8ee;--s:#f5f8fb;max-width:1120px;margin:auto;color:var(--t);font-family:Arial,Helvetica,sans-serif;line-height:1.6}.sv40 *{box-sizing:border-box}.sv40 h2,.sv40 h3,.sv40 p{margin-top:0}.sv40 h2{font-size:clamp(28px,4vw,44px);line-height:1.15;color:var(--n);margin-bottom:16px}.sv40 h3{font-size:21px;line-height:1.25;color:var(--n);margin-bottom:9px}.sv40 p{color:var(--m)}.sv40 .hero{padding:52px 28px;text-align:center;background:linear-gradient(135deg,#fff,#edf4fa);border-radius:22px;margin-bottom:24px}.sv40 .kick{color:var(--o);font-size:14px;font-weight:800;letter-spacing:1.7px;text-transform:uppercase;margin-bottom:10px}.sv40 .lead{max-width:820px;margin:0 auto 24px;font-size:18px}.sv40 .pills{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.sv40 .pill{padding:9px 14px;border:1px solid #ccd8e3;border-radius:999px;background:#fff;color:var(--n);font-size:14px;font-weight:700}.sv40 .sec{padding:48px 20px}.sv40 .center{text-align:center;max-width:820px;margin-left:auto;margin-right:auto}.sv40 .img{display:block;width:100%;height:auto;border-radius:18px}.sv40 .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:27px}.sv40 .card{padding:24px;border:1px solid var(--l);border-radius:16px;background:#fff;box-shadow:0 7px 24px rgba(16,42,67,.06)}.sv40 .num{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:38px;padding:0 10px;border-radius:999px;color:#fff;background:var(--o);font-weight:800;margin-bottom:14px}.sv40 .split{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.sv40 .checks{list-style:none;padding:0;margin:16px 0 0}.sv40 .checks li{position:relative;padding:7px 0 7px 29px;color:var(--m)}.sv40 .checks li:before{content:'✓';position:absolute;left:0;color:var(--o);font-weight:900}.sv40 .spec{overflow-x:auto;border:1px solid var(--l);border-radius:16px}.sv40 table{width:100%;border-collapse:collapse;min-width:680px}.sv40 th,.sv40 td{padding:14px 16px;border-bottom:1px solid var(--l);text-align:left}.sv40 th{background:var(--n);color:#fff;font-size:14px}.sv40 tr:last-child td{border-bottom:0}.sv40 td:nth-child(odd){font-weight:700;color:var(--n)}.sv40 .steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}.sv40 .step{counter-increment:step;padding:22px;background:var(--s);border-radius:14px}.sv40 .step:before{content:counter(step);display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--b);color:#fff;font-weight:800;margin-bottom:12px}.sv40 .alert{padding:24px;border-left:5px solid var(--o);background:#fff5ef;border-radius:10px;margin-top:24px}.sv40 .alert h3{color:#99320e}.sv40 details{border-bottom:1px solid var(--l);padding:17px 4px}.sv40 summary{cursor:pointer;font-weight:800;color:var(--n)}.sv40 details p{padding-top:12px;margin-bottom:0}.sv40 .contact{text-align:center;padding:38px 24px;background:var(--n);border-radius:18px}.sv40 .contact h2,.sv40 .contact p{color:#fff}.sv40 .btn{display:inline-block;padding:13px 24px;border-radius:8px;background:var(--o);color:#fff!important;text-decoration:none;font-weight:800}.sv40 .note{font-size:13px;color:#6b7280;margin-top:12px}@media(max-width:760px){.sv40 .grid,.sv40 .split,.sv40 .steps{grid-template-columns:1fr}.sv40 .sec{padding:34px 12px}.sv40 .hero{padding:36px 18px}.sv40 .split{gap:22px}.sv40 .split .copy{order:-1}}\n\u003c\/style\u003e\n\u003cdiv class=\"sv40\"\u003e\n  \u003csection class=\"hero\"\u003e\n    \u003cdiv class=\"kick\"\u003eSunvivae High-Capacity Solar Control\u003c\/div\u003e\n    \u003ch2\u003e40A MPPT Charging for Larger 12V \u0026amp; 24V Systems\u003c\/h2\u003e\n    \u003cp class=\"lead\"\u003eManage higher-capacity off-grid solar charging with automatic 12V\/24V recognition, advanced MPPT tracking, flexible battery profiles, LCD monitoring and intelligent DC load control.\u003c\/p\u003e\n    \u003cdiv class=\"pills\"\u003e\n\u003cspan class=\"pill\"\u003e40A Rated Charging\u003c\/span\u003e\u003cspan class=\"pill\"\u003e520W \/ 1040W PV\u003c\/span\u003e\u003cspan class=\"pill\"\u003ePV Voc \u0026lt;100V\u003c\/span\u003e\u003cspan class=\"pill\"\u003eLead-Acid \u0026amp; Lithium\u003c\/span\u003e\u003cspan class=\"pill\"\u003eLCD + Dual USB\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"kick\"\u003e12V \/ 24V Auto Recognition\u003c\/div\u003e\n\u003ch2\u003eMore Capacity for Demanding Off-Grid Systems\u003c\/h2\u003e\n\u003cp\u003eConnect the battery first and the controller automatically identifies a 12V or 24V system. Match the PV array to the correct battery voltage and keep array open-circuit voltage below 100V under every operating condition.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"img\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/2_97def74d-213e-4f62-946e-b1e4576037ed.png?v=1788082583\" alt=\"40A MPPT controller with 520W 12V and 1040W 24V solar input limits\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"kick\"\u003eAdvanced MPPT Technology\u003c\/div\u003e\n\u003ch2\u003eTrack Available Solar Power Efficiently\u003c\/h2\u003e\n\u003cp\u003eFast maximum-power-point tracking responds to changing solar conditions, delivering tracking efficiency of at least 99.5% and maximum conversion efficiency up to 97%.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"img\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/3_237a6ace-1444-4e93-9e21-2464cda9c8e9.png?v=1788082583\" alt=\"POW-Keeper1240 advanced MPPT tracking and conversion efficiency\"\u003e\n    \u003cdiv class=\"grid\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"num\"\u003e≥99.5%\u003c\/div\u003e\n\u003ch3\u003eMPPT Tracking\u003c\/h3\u003e\n\u003cp\u003eContinuously identifies the available maximum power point from the PV array.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"num\"\u003eUp to 97%\u003c\/div\u003e\n\u003ch3\u003eConversion Efficiency\u003c\/h3\u003e\n\u003cp\u003eEfficiently converts available solar input into controlled battery-charging power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"num\"\u003e40A\u003c\/div\u003e\n\u003ch3\u003eRated Charge Current\u003c\/h3\u003e\n\u003cp\u003eSupports larger solar battery systems when correctly sized, wired and protected.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec split\"\u003e\n    \u003cimg class=\"img\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/6A_99151963-47dc-449d-b414-8a52edbb4d33.png?v=1788082583\" alt=\"Flooded AGM GEL and LiFePO4 battery compatibility\"\u003e\n    \u003cdiv class=\"copy\"\u003e\n\u003cdiv class=\"kick\"\u003eSelectable Battery Profiles\u003c\/div\u003e\n\u003ch2\u003eCompatible with Common Lead-Acid \u0026amp; Lithium Batteries\u003c\/h2\u003e\n\u003cp\u003eSelect the correct profile for the connected battery chemistry and verify all charging values against the battery manufacturer’s requirements.\u003c\/p\u003e\n\u003cul class=\"checks\"\u003e\n\u003cli\u003eFlooded lead-acid batteries\u003c\/li\u003e\n\u003cli\u003eAGM and GEL batteries\u003c\/li\u003e\n\u003cli\u003eLiFePO4 and supported lithium profiles\u003c\/li\u003e\n\u003cli\u003eUser-configurable charging parameters\u003c\/li\u003e\n\u003cli\u003e8–32V supported battery-voltage range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"kick\"\u003eIntelligent DC Load Management\u003c\/div\u003e\n\u003ch2\u003eFour Load Control Modes\u003c\/h2\u003e\n\u003cp\u003eControl compatible DC lighting and loads manually, by day\/night conditions or by a configured operating period. The dedicated LOAD output is rated at 30A and must never be used for an inverter.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"img\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/7A_c9d3bb86-32da-4e34-a90c-2d9d6a648480.png?v=1788082583\" alt=\"Four load control modes on POW-Keeper1240 controller\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec split\"\u003e\n    \u003cdiv class=\"copy\"\u003e\n\u003cdiv class=\"kick\"\u003eFor RV, Cabin, Marine \u0026amp; Off-Grid Systems\u003c\/div\u003e\n\u003ch2\u003eReliable Charging—Installed in the Right Location\u003c\/h2\u003e\n\u003cp\u003eThe aluminum heat-sink design supports heat dissipation for stable operation. Because the enclosure is rated IP30, install the controller indoors in a dry, well-ventilated position away from moisture, rain, direct sunlight and flammable materials.\u003c\/p\u003e\n\u003cul class=\"checks\"\u003e\n\u003cli\u003eRV and camper battery systems\u003c\/li\u003e\n\u003cli\u003eOff-grid cabins and remote buildings\u003c\/li\u003e\n\u003cli\u003eMarine systems when mounted inside a dry cabin\u003c\/li\u003e\n\u003cli\u003eCompatible solar lighting, pumps and DC loads\u003c\/li\u003e\n\u003cli\u003eOperating temperature: −20°C to +55°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"img\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/9A_f23d8f59-93e6-4cc9-90c2-f290944ae657.png?v=1788082583\" alt=\"Indoor installation and off-grid applications for 40A MPPT controller\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"kick\"\u003eDual USB \u0026amp; Aluminum Heat Sink\u003c\/div\u003e\n\u003ch2\u003eConvenient Device Power with Efficient Cooling\u003c\/h2\u003e\n\u003cp\u003eTwo USB outputs provide convenient 5V power for compatible devices, while the rear aluminum heat sink helps dissipate operating heat. Keep adequate clearance around the controller and never block its ventilation area.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cimg class=\"img\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/8_c9a6bf7b-9a53-491e-b9a4-fb428b4c923f.png?v=1788082583\" alt=\"Dual USB output aluminum heat sink and operating temperature of POW-Keeper1240\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"kick\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ch2\u003ePOW-Keeper1240 Details\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"spec\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePOW-Keeper1240\u003c\/td\u003e\n\u003ctd\u003eRated Charge Current\u003c\/td\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSystem Voltage\u003c\/td\u003e\n\u003ctd\u003e12V \/ 24V Auto\u003c\/td\u003e\n\u003ctd\u003eBattery Voltage Range\u003c\/td\u003e\n\u003ctd\u003e8–32V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaximum PV Voc\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;100V\u003c\/td\u003e\n\u003ctd\u003eMaximum PV Power\u003c\/td\u003e\n\u003ctd\u003e520W at 12V \/ 1040W at 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRated DC Load Output\u003c\/td\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003ctd\u003eUSB Output\u003c\/td\u003e\n\u003ctd\u003e2 × 5V\/1A\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMPPT Tracking Efficiency\u003c\/td\u003e\n\u003ctd\u003e≥99.5%\u003c\/td\u003e\n\u003ctd\u003eMaximum Conversion Efficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 97%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eStatic Loss\u003c\/td\u003e\n\u003ctd\u003e≤50mA\u003c\/td\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP30\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e−20°C to +55°C\u003c\/td\u003e\n\u003ctd\u003eLCD Temperature Range\u003c\/td\u003e\n\u003ctd\u003e−20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e−30°C to +80°C\u003c\/td\u003e\n\u003ctd\u003eWorking Humidity\u003c\/td\u003e\n\u003ctd\u003e≤90%, no condensation\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGrounding Type\u003c\/td\u003e\n\u003ctd\u003ePositive grounded\u003c\/td\u003e\n\u003ctd\u003eLight-Control Voltage\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eProduct Size\u003c\/td\u003e\n\u003ctd\u003e189 × 129 × 49 mm\u003c\/td\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e0.67 kg \/ 1.48 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp class=\"note\"\u003ePV power ratings are system limits under ideal conditions, not guaranteed output. Actual performance varies with sunlight, temperature, wiring, panel orientation and system configuration.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"kick\"\u003eCorrect Connection Order\u003c\/div\u003e\n\u003ch2\u003eBattery First. PV Array Second.\u003c\/h2\u003e\n\u003cp\u003eOpen all breakers or disconnects before wiring and verify cable polarity, conductor size and protection ratings.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"steps\"\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eConnect the Battery\u003c\/h3\u003e\n\u003cp\u003eConnect the battery, close its breaker and allow the controller to power on and identify system voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eConnect the PV Array\u003c\/h3\u003e\n\u003cp\u003eConfirm cold-weather array Voc remains below 100V, connect the PV wiring, then close the PV breaker.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eConnect a DC Load\u003c\/h3\u003e\n\u003cp\u003eIf required, connect a compatible DC load within the 30A output rating. Connect an inverter directly to the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"alert\"\u003e\n\u003ch3\u003eEssential Safety Notes\u003c\/h3\u003e\n\u003cul class=\"checks\"\u003e\n\u003cli\u003eNever connect the PV array before the battery.\u003c\/li\u003e\n\u003cli\u003eNever connect an inverter to the controller’s LOAD terminals.\u003c\/li\u003e\n\u003cli\u003eNever exceed the controller’s voltage, current or power limits.\u003c\/li\u003e\n\u003cli\u003eInstall indoors in a dry, ventilated location; IP30 has no water-protection rating.\u003c\/li\u003e\n\u003cli\u003eUse properly sized cables, fuses and breakers. Qualified installation is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"sec\"\u003e\u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"kick\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003ch2\u003eBefore You Connect\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdetails\u003e\u003csummary\u003eDoes the controller automatically recognize 12V and 24V?\u003c\/summary\u003e\u003cp\u003eYes. Connect the battery first so the controller can power on and identify system voltage before the PV array is connected.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I connect a 100V solar array?\u003c\/summary\u003e\u003cp\u003eNo. PV array open-circuit voltage must remain below 100V, including the voltage increase caused by cold weather. Design with an appropriate safety margin.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eWhat battery types are supported?\u003c\/summary\u003e\u003cp\u003eSupported profiles include common Flooded, AGM, GEL and LiFePO4 batteries, along with configurable parameters. Always select the correct profile and follow the battery manufacturer’s charging requirements.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I connect an inverter to the LOAD output?\u003c\/summary\u003e\u003cp\u003eNo. Connect an inverter directly to the battery through correctly sized cables and dedicated overcurrent protection. The LOAD terminals are for compatible DC loads within the 30A rating.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan it be installed outdoors or in a boat’s open deck area?\u003c\/summary\u003e\u003cp\u003eNo. IP30 provides no water protection. Install the controller indoors in a dry, ventilated location, including when used in marine systems.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eWhy might charging behavior change near the high-voltage disconnect point?\u003c\/summary\u003e\u003cp\u003eThe controller may apply PWM limiting near the high-voltage disconnect point to prevent further battery-voltage rise. This protective behavior does not change the product’s MPPT operating design.\u003c\/p\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"contact\"\u003e\u003ch2\u003eNeed a Compatibility Check?\u003c\/h2\u003e\n\u003cp\u003eSend us your battery voltage, battery chemistry and solar-array Voc, Vmp and wattage. We’ll help you review the controller fit before ordering.\u003c\/p\u003e\n\u003ca class=\"btn\" href=\"https:\/\/www.sunvivae.com\/pages\/contact-us\"\u003eContact Sunvivae\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sunvivae","offers":[{"title":"Default Title","offer_id":44963947511901,"sku":"GF-017-MPPT40A","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/sunvivae-40a-mppt-solar-charge-controller-12v24v-auto-520w1040w-with-lcd-dual-usb-6043938.png?v=1789885511"},{"product_id":"60a-mppt-solar-charge-controller-parallel-12v-48v","title":"Sunvivae 60A MPPT Solar Charge Controller, 12V\/24V\/36V\/48V Auto, Up to 12 Units in Parallel","description":"\u003cstyle\u003e\n  .sv60{--ink:#17231d;--green:#174f37;--lime:#bad548;--soft:#f3f7f2;--line:#dce6df;--warn:#fff7e6;max-width:1180px;margin:0 auto;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.6}\n  .sv60 *{box-sizing:border-box}.sv60 h2,.sv60 h3,.sv60 p{margin-top:0}.sv60 h2{font-size:clamp(28px,4vw,46px);line-height:1.12}.sv60 h3{font-size:22px;line-height:1.25}.sv60 p{font-size:16px}.sv60 img{display:block;width:100%;height:auto;border-radius:18px}.sv60 .hero{padding:52px 28px;text-align:center;background:linear-gradient(135deg,#10291e,#1c583d);color:#fff;border-radius:24px}.sv60 .eyebrow{font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--lime);font-size:13px}.sv60 .lead{max-width:800px;margin:0 auto 28px;font-size:18px}.sv60 .chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.sv60 .chip{padding:9px 14px;border:1px solid rgba(255,255,255,.35);border-radius:999px;background:rgba(255,255,255,.08);font-size:14px;font-weight:700}.sv60 section{padding:54px 20px}.sv60 .center{text-align:center;max-width:800px;margin-left:auto;margin-right:auto}.sv60 .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}.sv60 .card{padding:24px;background:var(--soft);border:1px solid var(--line);border-radius:18px}.sv60 .num{font-size:30px;font-weight:900;color:var(--green);line-height:1}.sv60 .split{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:34px}.sv60 .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px}.sv60 table{width:100%;border-collapse:collapse;min-width:660px}.sv60 th,.sv60 td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}.sv60 th{background:var(--green);color:#fff}.sv60 tr:last-child td{border-bottom:0}.sv60 .note{padding:18px 20px;background:var(--warn);border-left:5px solid #e2a229;border-radius:10px}.sv60 .steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.sv60 .step{padding:22px;border:1px solid var(--line);border-radius:16px}.sv60 .step:before{counter-increment:step;content:counter(step);display:grid;place-items:center;width:34px;height:34px;margin-bottom:12px;border-radius:50%;background:var(--green);color:#fff;font-weight:800}.sv60 details{border-top:1px solid var(--line);padding:17px 2px}.sv60 summary{cursor:pointer;font-weight:800}.sv60 .cta{text-align:center;background:var(--soft);border-radius:22px}.sv60 .btn{display:inline-block;padding:14px 24px;background:var(--green);color:#fff!important;text-decoration:none;border-radius:999px;font-weight:800}.sv60 .fine{font-size:13px;color:#53615a}.sv60 ul{padding-left:21px}.sv60 li{margin-bottom:8px}\n  @media(max-width:800px){.sv60 .grid,.sv60 .split,.sv60 .steps{grid-template-columns:1fr}.sv60 section{padding:38px 12px}.sv60 .hero{padding:40px 18px;border-radius:18px}.sv60 .split img{order:-1}}\n\u003c\/style\u003e\n\n\u003cdiv class=\"sv60\"\u003e\n  \u003cdiv class=\"hero\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eExpandable off-grid solar charging\u003c\/div\u003e\n    \u003ch2\u003e60A MPPT Solar Charge Controller\u003c\/h2\u003e\n    \u003cp class=\"lead\"\u003eEfficient charging for 12V, 24V, 36V and 48V battery systems—with an adjustable 2–60A charging limit and parallel expansion for growing solar installations.\u003c\/p\u003e\n    \u003cdiv class=\"chips\"\u003e\n\u003cspan class=\"chip\"\u003e60A Rated Charging\u003c\/span\u003e\u003cspan class=\"chip\"\u003e12\/24\/36\/48V Auto\u003c\/span\u003e\u003cspan class=\"chip\"\u003eUp to 12 in Parallel\u003c\/span\u003e\u003cspan class=\"chip\"\u003eLead-Acid \u0026amp; Lithium\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003csection\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eBuilt for serious solar systems\u003c\/div\u003e\n\u003ch2\u003eMore control. More capacity. Room to expand.\u003c\/h2\u003e\n\u003cp\u003eAdvanced maximum power point tracking helps harvest available energy from the array while the clear LCD and programmable settings give you practical control over battery charging and DC load operation.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"grid\"\u003e\n      \u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"num\"\u003e≥99%\u003c\/div\u003e\n\u003ch3\u003eMPPT Tracking\u003c\/h3\u003e\n\u003cp\u003eContinuously follows the array's maximum power point, with peak conversion efficiency up to 97% under suitable conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"num\"\u003e2–60A\u003c\/div\u003e\n\u003ch3\u003eAdjustable Charge Limit\u003c\/h3\u003e\n\u003cp\u003eSet the maximum charging current to suit the connected battery manufacturer's permitted charge rate.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"num\"\u003e12×\u003c\/div\u003e\n\u003ch3\u003eParallel Expansion\u003c\/h3\u003e\n\u003cp\u003eConnect up to 12 compatible controllers for larger systems using the specified communication and wiring method.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"split\"\u003e\n    \u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eComplete off-grid control\u003c\/div\u003e\n\u003ch2\u003eFrom solar array to stored energy\u003c\/h2\u003e\n\u003cp\u003eDesigned for cabins, RV systems, marine installations and home energy projects, the controller manages power between a compatible PV array, battery bank and supported DC loads.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic 12V\/24V\/36V\/48V battery-system recognition\u003c\/li\u003e\n\u003cli\u003eRated 60A battery charging current\u003c\/li\u003e\n\u003cli\u003eRated DC load output current: 25A\u003c\/li\u003e\n\u003cli\u003eNegative-ground architecture\u003c\/li\u003e\n\u003cli\u003eLCD monitoring and user-programmable settings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n    \u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/2_b1d85eea-cb9d-4f07-9ff0-799d5433d946.png?v=1788249590\" alt=\"60A MPPT solar charge controller in an off-grid solar energy system\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eSystem sizing\u003c\/div\u003e\n\u003ch2\u003ePV recommendations by battery voltage\u003c\/h2\u003e\n\u003cp\u003eConfirm the solar array's cold-weather open-circuit voltage, power and current before installation. Never exceed the limits specified for the controller supplied with your order.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"table-wrap\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBattery System\u003c\/th\u003e\n\u003cth\u003eSuggested PV Power\u003c\/th\u003e\n\u003cth\u003eSuggested PV Input Range\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003ctd\u003e720W\u003c\/td\u003e\n\u003ctd\u003eDC 20–75V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003ctd\u003e1440W\u003c\/td\u003e\n\u003ctd\u003eDC 37–100V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e36V\u003c\/td\u003e\n\u003ctd\u003e2100W\u003c\/td\u003e\n\u003ctd\u003eDC 50–155V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e48V\u003c\/td\u003e\n\u003ctd\u003e2800W\u003c\/td\u003e\n\u003ctd\u003eDC 72–155V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp class=\"fine\"\u003ePV output varies with temperature and operating conditions. Include an appropriate electrical safety margin and follow the supplied manual and local code.\u003c\/p\u003e\n    \u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/4_ccdb959e-7936-49a0-8473-309785941ec4.png?v=1788249589\" alt=\"PV power and input voltage recommendations for 12V 24V 36V and 48V systems\"\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"split\"\u003e\n    \u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/6_cebf0ee9-5745-4ee3-8baa-f7686d2642ce.png?v=1788249590\" alt=\"Compatible sealed gel flooded AGM lithium iron phosphate and lithium ion batteries\"\u003e\n    \u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eFlexible battery profiles\u003c\/div\u003e\n\u003ch2\u003eLead-acid, lithium and user-defined settings\u003c\/h2\u003e\n\u003cp\u003ePreset charging profiles support Sealed, Gel, Flooded, AGM, LiFePO4 and lithium-ion batteries. A user-defined profile lets experienced installers match supported batteries that require custom parameters.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProgrammable absorption voltage\u003c\/li\u003e\n\u003cli\u003eProgrammable float voltage\u003c\/li\u003e\n\u003cli\u003eLow-voltage disconnect setting\u003c\/li\u003e\n\u003cli\u003eDC load timer control\u003c\/li\u003e\n\u003cli\u003eExternal temperature-probe input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eCold-weather lithium warning:\u003c\/strong\u003e Do not charge lithium batteries below 0°C (32°F) unless the battery itself includes manufacturer-approved low-temperature charging protection.\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eScalable architecture\u003c\/div\u003e\n\u003ch2\u003eExpand with up to 12 controllers\u003c\/h2\u003e\n\u003cp\u003eParallel operation can increase total charging capacity while letting separate solar arrays serve a shared battery bank.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/8_7db13edc-925c-45b2-b17a-1a1258d8d0e4.png?v=1788249590\" alt=\"Up to twelve compatible MPPT solar charge controllers operating in parallel\"\u003e\n    \u003cdiv class=\"note\"\u003e\n\u003cstrong\u003eParallel-system requirements:\u003c\/strong\u003e Each controller must use its own separate PV array. Compatible controllers connect to the same battery bank and must use the specified communication cables and controller-address settings. Verify the battery bank can safely accept the combined charging current.\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eInstallation sequence\u003c\/div\u003e\n\u003ch2\u003eConnect the battery first\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"steps\"\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003ePower everything off\u003c\/h3\u003e\n\u003cp\u003eOpen all correctly rated DC breakers and verify polarity before making any connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eConnect the battery\u003c\/h3\u003e\n\u003cp\u003eConnect and energize the battery side first so the controller can detect the system voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eConnect PV, then load\u003c\/h3\u003e\n\u003cp\u003eAfter the controller powers on correctly, connect the PV array and then any compatible DC load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"note\" style=\"margin-top:20px\"\u003e\n\u003cstrong\u003eBefore changing parameters:\u003c\/strong\u003e Disconnect PV input. To restore factory settings, connect only the battery and hold the last button for more than five seconds. Installation should be completed by a qualified person using correctly sized cable, fuses\/breakers and torque values from the supplied manual.\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eBuilt-in safeguards\u003c\/div\u003e\n\u003ch2\u003eProtection for everyday system faults\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"grid\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003ePV \u0026amp; Wiring\u003c\/h3\u003e\n\u003cp\u003ePV short-circuit and reverse-polarity protection help reduce risk from common wiring faults.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eBattery \u0026amp; Load\u003c\/h3\u003e\n\u003cp\u003eBattery overvoltage, over-discharge, load overcurrent and load short-circuit protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eTemperature\u003c\/h3\u003e\n\u003cp\u003eDie-cast aluminum heat dissipation plus a temperature-controlled cooling fan and external probe.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eFrequently asked questions\u003c\/div\u003e\n\u003ch2\u003eBefore you install\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I connect one solar array to several controllers?\u003c\/summary\u003e\u003cp\u003eNo. In a parallel-controller system, each controller must receive power from its own separate PV array.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan the charging current always be set to 60A?\u003c\/summary\u003e\u003cp\u003eThe adjustable limit is 2–60A, but the selected value must not exceed the battery manufacturer's permitted charging current or the safe capacity of the wiring and protection devices.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eDoes “12V\/24V\/36V\/48V Auto” mean the PV voltage is automatically selected?\u003c\/summary\u003e\u003cp\u003eNo. It refers to battery-system recognition. The PV array must still be designed within the correct input-voltage and power range for the selected battery system.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I install the controller outdoors?\u003c\/summary\u003e\u003cp\u003eInstall it in a dry, ventilated location protected from rain, condensation, direct water exposure and excessive dust. Allow clearance for cooling and follow the supplied manual.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eWhat is included?\u003c\/summary\u003e\u003cp\u003ePackage contents may vary by production batch. Please refer to the current product images and order confirmation, or contact us before purchase if a specific accessory is required.\u003c\/p\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"cta\"\u003e\u003ch2\u003ePlanning a larger solar system?\u003c\/h2\u003e\n\u003cp\u003eSend us your battery voltage, battery chemistry, PV panel Voc\/Vmp and proposed series\/parallel layout before ordering.\u003c\/p\u003e\n\u003ca class=\"btn\" href=\"https:\/\/www.sunvivae.com\/pages\/contact-us\"\u003eContact Sunvivae\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sunvivae","offers":[{"title":"Default Title","offer_id":44970912448605,"sku":"GF-018-MPPT60A","price":170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/sunvivae-60a-mppt-solar-charge-controller-12v24v36v48v-auto-up-to-12-units-in-parallel-3893725.png?v=1789885511"},{"product_id":"pwm-solar-charge-controller-10a-100a-12v-24v","title":"Sunvivae PWM Solar Charge Controller 10A–100A, 12V\/24V Auto with LCD \u0026 Dual USB","description":"\u003cstyle\u003e\n  .svpwm{--ink:#13202a;--muted:#5b6872;--green:#087943;--orange:#f45b16;--blue:#147bd1;--pale:#f3f8f5;--line:#dce7e1;max-width:1180px;margin:0 auto;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.6}.svpwm *{box-sizing:border-box}.svpwm h2,.svpwm h3,.svpwm p{margin-top:0}.svpwm h2{font-size:clamp(28px,4vw,44px);line-height:1.12;margin-bottom:15px}.svpwm h3{font-size:21px;line-height:1.25;margin-bottom:8px}.svpwm p{color:var(--muted)}\n  .svpwm .hero{padding:52px 30px;text-align:center;background:linear-gradient(135deg,#edf9f2,#fff7ef);border-radius:24px;margin-bottom:22px}.svpwm .eyebrow{color:var(--orange);font-weight:800;letter-spacing:.09em;text-transform:uppercase;font-size:13px}.svpwm .lead{max-width:850px;margin:0 auto 24px;font-size:18px}.svpwm .chips{display:flex;flex-wrap:wrap;justify-content:center;gap:9px}.svpwm .chip{background:#fff;border:1px solid var(--line);padding:9px 14px;border-radius:999px;font-size:14px;font-weight:700}.svpwm .section{padding:40px 18px}.svpwm .center{text-align:center;max-width:850px;margin:0 auto 27px}.svpwm .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.svpwm .card{padding:24px;border:1px solid var(--line);border-radius:17px;background:#fff;box-shadow:0 8px 24px rgba(26,64,43,.06)}.svpwm .split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}.svpwm .media{margin:20px 0 28px}.svpwm img{display:block;width:100%;height:auto;border-radius:18px}.svpwm .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px}.svpwm table{width:100%;border-collapse:collapse;min-width:650px}.svpwm th,.svpwm td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:center}.svpwm th{background:#0b6d42;color:#fff}.svpwm tr:last-child td{border-bottom:0}.svpwm tr:nth-child(even) td{background:#f5faf7}.svpwm .notice{padding:21px 23px;border-left:5px solid var(--orange);background:#fff6ee;border-radius:10px}.svpwm .steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.svpwm .step{padding:22px;border-radius:16px;background:var(--pale)}.svpwm .step:before{counter-increment:step;content:counter(step);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--green);color:#fff;font-weight:800;margin-bottom:12px}.svpwm details{border-top:1px solid var(--line);padding:17px 4px}.svpwm summary{cursor:pointer;font-weight:700}.svpwm details p{margin:9px 0 0}.svpwm .cta{padding:37px 22px;text-align:center;background:#0d2d23;color:#fff;border-radius:22px}.svpwm .cta p{color:#d7eee4}.svpwm .btn{display:inline-block;background:var(--orange);color:#fff!important;text-decoration:none;padding:13px 24px;border-radius:999px;font-weight:800}\n  @media(max-width:760px){.svpwm .grid,.svpwm .split,.svpwm .steps{grid-template-columns:1fr}.svpwm .hero{padding:37px 17px}.svpwm .section{padding:31px 7px}.svpwm h2{font-size:29px}}\n\u003c\/style\u003e\n\n\u003cdiv class=\"svpwm\"\u003e\n  \u003csection class=\"hero\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eSimple solar battery management\u003c\/div\u003e\n    \u003ch2\u003ePWM Solar Charge Controller for 12V \u0026amp; 24V Systems\u003c\/h2\u003e\n    \u003cp class=\"lead\"\u003eChoose from ten current ratings for small off-grid solar systems, RVs, cabins and DC lighting. An LCD screen, selectable battery profiles, programmable load output and dual USB ports bring essential control into one compact unit.\u003c\/p\u003e\n    \u003cdiv class=\"chips\"\u003e\n\u003cspan class=\"chip\"\u003e10A–100A Options\u003c\/span\u003e\u003cspan class=\"chip\"\u003e12V \/ 24V Auto\u003c\/span\u003e\u003cspan class=\"chip\"\u003e3-Stage PWM Charging\u003c\/span\u003e\u003cspan class=\"chip\"\u003eB1 \/ B2 \/ B3 Battery Profiles\u003c\/span\u003e\u003cspan class=\"chip\"\u003eDual USB 5V \/ 2.5A Max\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eAutomatic system recognition\u003c\/div\u003e\n\u003ch2\u003eOne Controller for 12V or 24V Battery Systems\u003c\/h2\u003e\n\u003cp\u003eConnect the battery first and the controller automatically identifies a compatible 12V or 24V system. Keep the solar array open-circuit voltage within the confirmed input limit for the detected system.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/3_8930f435-fed0-4994-b0f4-bf8d0c69924c.png?v=1788599423\" alt=\"PWM solar charge controller automatic 12V and 24V system recognition\"\u003e\u003c\/div\u003e\n    \u003cdiv class=\"grid\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003e12V Battery System\u003c\/h3\u003e\n\u003cp\u003eMaximum solar-array open-circuit voltage: 25V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003e24V Battery System\u003c\/h3\u003e\n\u003cp\u003eMaximum solar-array open-circuit voltage: 50V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eBattery First\u003c\/h3\u003e\n\u003cp\u003eConnect the battery before the solar panel so the controller can identify the system voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eSelect the correct battery profile\u003c\/div\u003e\n\u003ch2\u003eThree Battery Programs\u003c\/h2\u003e\n\u003cp\u003eSet the battery type before operation. Charging values must match the battery manufacturer's requirements, especially for lithium-based batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/4_97b3e50f-9684-4039-8eb4-a4bb194d978f.png?v=1788599424\" alt=\"PWM solar charge controller battery profiles for lead acid lithium ion and LiFePO4 batteries\"\u003e\u003c\/div\u003e\n    \u003cdiv class=\"grid\"\u003e\n      \u003cdiv class=\"card\"\u003e\n\u003ch3\u003eB1 — Lead-Acid\u003c\/h3\u003e\n\u003cp\u003eFor compatible 12V\/24V flooded, sealed, AGM and GEL battery systems.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n\u003ch3\u003eB2 — Lithium-Ion\u003c\/h3\u003e\n\u003cp\u003ePreset for a compatible 3S lithium-ion battery pack. A battery-management system is still required.\u003c\/p\u003e\n\u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n\u003ch3\u003eB3 — LiFePO4\u003c\/h3\u003e\n\u003cp\u003ePreset for a compatible 4S LiFePO4 battery pack. Confirm the charging limits before use.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"split\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eInformation at a glance\u003c\/div\u003e\n\u003ch2\u003eLCD Monitoring and Simple Controls\u003c\/h2\u003e\n\u003cp\u003eView system voltage, solar charging status, battery level, DC load state, timer mode and battery selection. Adjustable float, load-disconnect and load-reconnect values help tailor operation to a compatible system.\u003c\/p\u003e\n\u003cp\u003eSettings are stored after configuration, reducing repeated setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/5_133567e7-9cad-458a-b006-c2bb7351a30c.png?v=1788599423\" alt=\"LCD screen and buttons on Sunvivae PWM solar charge controller\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eBattery care\u003c\/div\u003e\n\u003ch2\u003eThree-Stage PWM Charging\u003c\/h2\u003e\n\u003cp\u003eBulk, absorption and float stages manage compatible batteries through the charging cycle. Equalization must only be enabled for a battery type whose manufacturer specifically permits it; never equalize lithium batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/6_853af3b2-f1fd-4a0c-89d2-e788169297a8.png?v=1788599423\" alt=\"Three stage PWM solar charging process\"\u003e\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"split\"\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/7_ad68daa0-1527-486b-8436-21873ea1c011.png?v=1788599423\" alt=\"Protection functions of PWM solar charge controller\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eBuilt-in safeguards\u003c\/div\u003e\n\u003ch2\u003eProtection for Everyday Operation\u003c\/h2\u003e\n\u003cp\u003eIntegrated protection functions include overcurrent, short-circuit, reverse-polarity, open-circuit, overcharge and overload protection. Dual-MOS reverse-current control helps reduce unwanted backflow and heat generation.\u003c\/p\u003e\n\u003cp\u003eProtective functions supplement—not replace—correct fusing, cable sizing, breakers, ventilation and proper installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eUseful beyond charging\u003c\/div\u003e\n\u003ch2\u003eUSB Power and Programmable DC Load\u003c\/h2\u003e\n\u003cp\u003eTwo USB ports provide a combined output of up to 5V\/2.5A for compatible small devices. The DC load terminals support manual, timed and dusk-to-dawn operating modes for suitable low-voltage loads.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/8_7efad456-6045-43a9-bee9-db3b56da4dd6.png?v=1788599423\" alt=\"Dual USB charging and programmable DC load modes\"\u003e\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eTen selectable variants\u003c\/div\u003e\n\u003ch2\u003eChoose the Current Rating for Your System\u003c\/h2\u003e\n\u003cp\u003eChoose according to the array's short-circuit current, battery charging requirements, wiring and protection devices—not by wattage alone.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"media\"\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/9_6545012f-b36a-4e03-92cb-b7899cb123d8.png?v=1788599423\" alt=\"Selection chart for 10A through 100A PWM solar charge controllers\"\u003e\u003c\/div\u003e\n    \u003cdiv class=\"table-wrap\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVariant\u003c\/th\u003e\n\u003cth\u003eListed Max PV Power — 12V\u003c\/th\u003e\n\u003cth\u003eListed Max PV Power — 24V\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003e10A\u003c\/td\u003e\n\u003ctd\u003e120W\u003c\/td\u003e\n\u003ctd\u003e240W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20A\u003c\/td\u003e\n\u003ctd\u003e240W\u003c\/td\u003e\n\u003ctd\u003e480W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003ctd\u003e360W\u003c\/td\u003e\n\u003ctd\u003e720W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40A\u003c\/td\u003e\n\u003ctd\u003e480W\u003c\/td\u003e\n\u003ctd\u003e960W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003ctd\u003e600W\u003c\/td\u003e\n\u003ctd\u003e1200W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60A\u003c\/td\u003e\n\u003ctd\u003e720W\u003c\/td\u003e\n\u003ctd\u003e1440W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e70A\u003c\/td\u003e\n\u003ctd\u003e840W\u003c\/td\u003e\n\u003ctd\u003e1680W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80A\u003c\/td\u003e\n\u003ctd\u003e960W\u003c\/td\u003e\n\u003ctd\u003e1920W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e90A\u003c\/td\u003e\n\u003ctd\u003e1080W\u003c\/td\u003e\n\u003ctd\u003e2160W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003ctd\u003e1200W\u003c\/td\u003e\n\u003ctd\u003e2400W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cp style=\"margin-top:13px;font-size:14px\"\u003eManufacturer-confirmed ratings. The controller current rating, battery's permitted charge current, cable capacity and protective devices must all be suitable. Keep total PV open-circuit voltage at or below 25V on a 12V battery system or at or below 50V on a 24V battery system.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"split\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"eyebrow\"\u003eCompact indoor installation\u003c\/div\u003e\n\u003ch2\u003eEasy to Mount, Important to Ventilate\u003c\/h2\u003e\n\u003cp\u003eFour mounting holes and a compact enclosure make installation straightforward. Mount vertically on a nonflammable surface in a dry, ventilated indoor location away from rain, condensation, direct sunlight and heat sources.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eController size:\u003c\/strong\u003e approximately 133.5 × 70 × 35 mm. \u003cstrong\u003eGross package weight:\u003c\/strong\u003e approximately 150 g.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/10_eb5a4998-31fd-43d5-b9f1-94a3cacd8931.png?v=1788599423\" alt=\"PWM solar charge controller dimensions and indoor installation requirements\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eConnection sequence\u003c\/div\u003e\n\u003ch2\u003eConnect the Battery First\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"steps\"\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eBattery\u003c\/h3\u003e\n\u003cp\u003eWith all breakers open, connect the battery first so the controller can identify the system voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eSolar Panel\u003c\/h3\u003e\n\u003cp\u003eConfirm polarity and PV open-circuit voltage, then connect the solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"step\"\u003e\n\u003ch3\u003eDC Load\u003c\/h3\u003e\n\u003cp\u003eConnect only a compatible low-voltage DC load within the controller's load rating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\u003cdiv class=\"notice\"\u003e\n\u003cstrong\u003eImportant safety notice:\u003c\/strong\u003e This is a PWM controller, not an MPPT controller or a general-purpose voltage stabilizer. Never connect an inverter to the controller's DC load terminals; connect the inverter to the battery through correctly sized protection. Use external fuses or breakers, suitable cable, correct polarity and the battery manufacturer's charging limits. Installation by a qualified person is recommended for higher-current systems.\u003c\/div\u003e\u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eProduct details\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"grid\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eElectrical\u003c\/h3\u003e\n\u003cp\u003eSystem voltage: 12V\/24V auto\u003cbr\u003eMax PV Voc: 25V @ 12V \/ 50V @ 24V\u003cbr\u003eStandby current: \u0026lt;10mA\u003cbr\u003eUSB: 2 ports, 5V\/2.5A max combined\u003cbr\u003eOperating temperature: −35°C to +60°C\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eAdjustable Values\u003c\/h3\u003e\n\u003cp\u003eFloat voltage: 13.7V default\u003cbr\u003eLoad disconnect: 10.7V default\u003cbr\u003eLoad reconnect: 12.6V default\u003cbr\u003eValues are adjustable where supported.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e1 × PWM solar charge controller\u003cbr\u003e1 × User guide\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\u003cdiv class=\"center\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eGood to know\u003c\/div\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003c\/div\u003e\n    \u003cdetails\u003e\u003csummary\u003eIs this an MPPT controller?\u003c\/summary\u003e\u003cp\u003eNo. It uses three-stage PWM charging. Do not describe or install it as an MPPT controller.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eDoes it automatically detect 12V or 24V?\u003c\/summary\u003e\u003cp\u003eYes, after the battery is connected first. The controller must detect the battery voltage before the solar panel is connected.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I charge a lithium battery?\u003c\/summary\u003e\u003cp\u003eOnly a compatible battery pack using the correct B2 or B3 profile and a functioning battery-management system. Confirm all charging voltages with the battery manufacturer before use.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan the USB ports deliver 2.5A each?\u003c\/summary\u003e\u003cp\u003eNo. The listed maximum is 5V\/2.5A shared across the two USB outputs.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eCan I install it outside?\u003c\/summary\u003e\u003cp\u003eNo. The enclosure is intended for a dry, ventilated indoor location and must be protected from rain, condensation and direct sunlight.\u003c\/p\u003e\u003c\/details\u003e\n    \u003cdetails\u003e\u003csummary\u003eHow do I choose 10A through 100A?\u003c\/summary\u003e\u003cp\u003eBase the selection on PV short-circuit current, battery charge-current limit, system voltage, cable size, fuses and breakers. If unsure, ask a qualified installer to size the system.\u003c\/p\u003e\u003c\/details\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"cta\"\u003e\u003ch2\u003eNot Sure Which Current Rating to Choose?\u003c\/h2\u003e\n\u003cp\u003eSend us your panel Voc, Isc and wattage together with your battery voltage, chemistry and capacity.\u003c\/p\u003e\n\u003ca class=\"btn\" href=\"https:\/\/www.sunvivae.com\/pages\/contact-us\"\u003eContact Sunvivae\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Sunvivae","offers":[{"title":"10A","offer_id":44994853666909,"sku":"GF-022-10A","price":21.0,"currency_code":"USD","in_stock":true},{"title":"20A","offer_id":44994853699677,"sku":"GF-022-20A","price":22.0,"currency_code":"USD","in_stock":true},{"title":"30A","offer_id":44994853732445,"sku":"GF-022-30A","price":23.0,"currency_code":"USD","in_stock":true},{"title":"40A","offer_id":44994853765213,"sku":"GF-022-40A","price":24.0,"currency_code":"USD","in_stock":true},{"title":"50A","offer_id":44994853797981,"sku":"GF-022-50A","price":25.0,"currency_code":"USD","in_stock":true},{"title":"60A","offer_id":44994853830749,"sku":"GF-022-60A","price":26.0,"currency_code":"USD","in_stock":true},{"title":"70A","offer_id":44994853863517,"sku":"GF-022-70A","price":27.0,"currency_code":"USD","in_stock":true},{"title":"80A","offer_id":44994853896285,"sku":"GF-022-80A","price":28.0,"currency_code":"USD","in_stock":true},{"title":"90A","offer_id":44994853929053,"sku":"GF-022-90A","price":29.0,"currency_code":"USD","in_stock":true},{"title":"100A","offer_id":44994853961821,"sku":"GF-022-100A","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5888\/2397\/files\/sunvivae-pwm-solar-charge-controller-10a-100a-12v24v-auto-with-lcd-dual-usb-1710495.png?v=1789885514"}],"url":"https:\/\/www.sunvivae.com\/collections\/charge-controllers.oembed","provider":"Sunvivae","version":"1.0","type":"link"}