{"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","url":"https:\/\/www.sunvivae.com\/products\/30a-pwm-solar-charge-controller-12v-24v","provider":"Sunvivae","version":"1.0","type":"link"}