{"product_id":"go-power-gp-pwm-30-ul-30a-solar-charge-controller","title":"Go Power GP-PWM-30-UL 30 Amp Digital Solar Charge Controller","description":"\u003cp class=\"nvn-hero\"\u003eThe Go Power GP-PWM-30-UL is a 30 amp digital PWM solar charge controller for 12 volt house banks. It regulates the charge from your panels, shows you what's happening on a digital display, and adds a built-in USB port plus Bluetooth monitoring. A clean, easy-to-live-with controller for a modest boat solar setup.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Go Power GP-PWM-30-UL is a 30 amp digital solar charge controller built to sit between your solar panels and your 12 volt house bank. Its job is simple but important. It takes the raw output from your panels and feeds your batteries a clean, regulated charge, so you get the power you paid for without cooking the bank. And it's built to the UL-listed standard, which matters when you're wiring into a boat you care about. If you're running solar and want a controller that's easy to read and easy to live with, this is a solid pick.\u003c\/p\u003e\n\u003cp\u003ePWM stands for pulse width modulation, which is the charging method this controller uses. In plain terms, it rapidly switches the panel connection on and off to hold your batteries at the right voltage as they fill up. It's a proven, dependable approach that's been keeping house banks topped off for decades. PWM controllers like this one are best matched to smaller panel setups where the panel voltage is close to your battery voltage. If you've got one or two good-sized panels feeding a 12 volt bank, this controller is right in its wheelhouse.\u003c\/p\u003e\n\u003cp\u003eThe 30 amp rating tells you how much charge current it can handle on the way to your batteries. That's plenty of headroom for a typical cruising or weekend solar setup. It's a sensible match for the panel wattage most boaters actually mount on a cabin top or an arch. The operating range runs from 6 to 15.5 volts, so it stays in control through the full charge cycle, from a drawn-down morning bank to a fully absorbed afternoon.\u003c\/p\u003e\n\u003cp\u003eWhat makes this one nice to actually use is the digital display. You can walk up to it and see what your solar is doing at a glance, instead of guessing. Charging current, battery voltage, the state of the charge, it's all right there. There's also a built-in USB charge port on the face of the unit, which is genuinely handy. Phone, handheld GPS, a headlamp, whatever needs a top-off, you've got a port right at the panel.\u003c\/p\u003e\n\u003cp\u003eIt's Bluetooth ready too, so with the Go Power app you can keep an eye on your solar from your phone rather than climbing into the locker every time you want a reading. That's the kind of thing you appreciate on a long weekend at anchor when the controller is tucked away somewhere out of sight.\u003c\/p\u003e\n\u003cp\u003eA few install notes from experience. Mount it somewhere dry and reasonably ventilated. PWM controllers do run a little warm under load, so give it some air and don't bury it in a sealed box. Watch your polarity when you wire it up. Reversing the battery leads is the number one way people kill a controller on the first power-up, so double-check before you make the final connection. Size your wire to the run and the current. For a 30 amp controller, undersized cable causes voltage drop and erratic charging, and a properly rated fuse on the battery side is cheap insurance. Give the connections a tug after everything's torqued down, because vibration on the water works fasteners loose over time.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Anglers and cruisers who want to keep a house bank charged without shore power, and anyone adding a modest solar array to a 12 volt system. It's a clean, no-drama controller for the boat that runs one or two panels. Who's it not for? If you're building out a big high-voltage array with a lot of panels in series, that's a different tool. This controller shines on the smaller, sensible setups that most of us actually run.\u003c\/p\u003e\n\u003cp\u003eBottom line, the GP-PWM-30-UL does the core job well and gives you a display and app connection that make solar easy to monitor. Wire it up right, keep it dry, and it'll quietly keep your batteries happy season after season.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e30 amp charge current handles a modest 12 volt solar array without breaking a sweat\u003c\/li\u003e\n  \u003cli\u003ePWM (pulse width modulation) charging delivers clean, regulated power to your house bank\u003c\/li\u003e\n  \u003cli\u003e6 to 15.5 volt operating range keeps control through the full charge cycle\u003c\/li\u003e\n  \u003cli\u003eDigital display shows charging current and battery voltage at a glance\u003c\/li\u003e\n  \u003cli\u003eBuilt-in USB charge port tops off phones and handheld electronics right at the panel\u003c\/li\u003e\n  \u003cli\u003eBluetooth ready for monitoring your solar from the Go Power app on your phone\u003c\/li\u003e\n  \u003cli\u003eCompact 4.25 by 7.48 by 1.38 inch body fits tight lockers and helm spaces\u003c\/li\u003e\n  \u003cli\u003eUL-listed GP-PWM-30-UL build for a safe, code-friendly install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Go Power reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size solar array does the GP-PWM-30-UL handle?\u003c\/summary\u003e\n    \u003cp\u003eIt manages up to 30 amps of charge current into a 12 volt bank, which suits a modest one or two panel setup. As a PWM controller it's happiest when the panel voltage is close to your battery voltage, so it's a great match for a typical cabin-top or arch-mounted array rather than a big series string.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a PWM or an MPPT controller?\u003c\/summary\u003e\n    \u003cp\u003eIt's a PWM controller, which uses pulse width modulation to regulate the charge. PWM is a proven, cost-effective method that works well when panel and battery voltages are close. For smaller 12 volt arrays like most boats run, PWM gets the job done reliably.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the operating voltage range?\u003c\/summary\u003e\n    \u003cp\u003e6 to 15.5 volts on a 12 volt system. That range covers the full charge cycle, from a deeply drawn-down bank up through a fully topped-off battery.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it have a display?\u003c\/summary\u003e\n    \u003cp\u003eYes. There's a digital display right on the unit so you can see charging current, battery voltage, and charge status at a glance instead of guessing what your solar is doing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the built-in USB port for?\u003c\/summary\u003e\n    \u003cp\u003eIt's a handy charge port on the face of the controller for topping off small electronics, a phone, a handheld GPS, a headlamp, whatever needs power near the panel.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it really Bluetooth?\u003c\/summary\u003e\n    \u003cp\u003eIt's Bluetooth ready, so you can pair it and check your solar from your phone through the Go Power app rather than opening a locker to read the display. Handy when the controller is mounted out of sight.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhere should I mount it and how do I wire it?\u003c\/summary\u003e\n    \u003cp\u003ePick a dry, ventilated spot since PWM controllers run a little warm under load. Watch your polarity carefully, reversing the battery leads is the most common way to kill a controller on first power-up. Use wire sized for the run and current, and add a properly rated fuse on the battery side.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the dimensions?\u003c\/summary\u003e\n    \u003cp\u003eIt measures 4-1\/4 inches wide by 7.48 inches high by 1.38 inches deep, compact enough to tuck into a tight locker or helm space.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eGo Power GP-PWM-30-UL 30 Amp Digital Solar Charge Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eGo Power\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eGP-PWM-30-UL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e839085001882\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eController Type\u003c\/th\u003e\n\u003ctd\u003ePWM (Pulse Width Modulation), Digital\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCharge Current\u003c\/th\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNominal System Voltage\u003c\/th\u003e\n\u003ctd\u003e12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOperating Voltage Range\u003c\/th\u003e\n\u003ctd\u003e6 to 15.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDimensions (W x H x D)\u003c\/th\u003e\n\u003ctd\u003e4-1\/4 in x 7.48 in x 1.38 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUSB Charge Port\u003c\/th\u003e\n\u003ctd\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBluetooth\u003c\/th\u003e\n\u003ctd\u003eBluetooth Ready\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eDigital\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCertification\u003c\/th\u003e\n\u003ctd\u003eUL Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size solar array does the GP-PWM-30-UL handle?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It manages up to 30 amps of charge current into a 12 volt bank, which suits a modest one or two panel setup. As a PWM controller it's happiest when the panel voltage is close to your battery voltage, so it's a great match for a typical cabin-top or arch-mounted array rather than a big series string.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a PWM or an MPPT controller?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a PWM controller, which uses pulse width modulation to regulate the charge. PWM is a proven, cost-effective method that works well when panel and battery voltages are close. For smaller 12 volt arrays like most boats run, PWM gets the job done reliably.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the operating voltage range?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"6 to 15.5 volts on a 12 volt system. That range covers the full charge cycle, from a deeply drawn-down bank up through a fully topped-off battery.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it have a display?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. There's a digital display right on the unit so you can see charging current, battery voltage, and charge status at a glance instead of guessing what your solar is doing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the built-in USB port for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a handy charge port on the face of the controller for topping off small electronics, a phone, a handheld GPS, a headlamp, whatever needs power near the panel.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it really Bluetooth?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's Bluetooth ready, so you can pair it and check your solar from your phone through the Go Power app rather than opening a locker to read the display. Handy when the controller is mounted out of sight.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Where should I mount it and how do I wire it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Pick a dry, ventilated spot since PWM controllers run a little warm under load. Watch your polarity carefully, reversing the battery leads is the most common way to kill a controller on first power-up. Use wire sized for the run and current, and add a properly rated fuse on the battery side.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the dimensions?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It measures 4-1\/4 inches wide by 7.48 inches high by 1.38 inches deep, compact enough to tuck into a tight locker or helm space.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Go Power","offers":[{"title":"Default Title","offer_id":45048179425373,"sku":"2008072","price":178.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_27ed2700-1ebf-4983-a628-5e262d9d485d.jpg?v=1789360555","url":"https:\/\/nvnmarine.com\/products\/go-power-gp-pwm-30-ul-30a-solar-charge-controller","provider":"NVN Marine","version":"1.0","type":"link"}