Genasun 8A 36V GV-Boost MPPT Solar Charge Controller, Waterproof for Golf Carts

  • Charges a 36V battery from a lower voltage solar panel
  • Voltage-boosting for 36V Lead-Acid Batteries
  • This controller is encapsulated to be fully weatherproof and is suitable for use in a marine environment.
  • Made in the USA; includes 2-year warranty
  • Waterproof, great for Golf Carts!
Genasun's 36V, 8A ceramic ultra high-speed MPPT solar controller with Low Voltage Disconnect is a high performance maximum power point tracking (MPPT) battery charger suitable for up to 325W solar modules. Now you can charge your 36V battery bank from a single lower voltage solar module, easily and efficiently.

Running circles around the Competition
You have a limited amount of space on the roof of your golf cart. Advanced electronics in the GVB controller extract more usable power from your panel than any other controller. These solar charge controllers are fully waterproof, which makes them ideal for golf carts and other applications where the controller will be exposed to moisture.

Boosting Panel Voltage Saves Money
Most solar charge controllers move power from a higher voltage panel to a lower voltage battery bank.  The GVB-series controllers, in contrast, pump electricity up hill. These controllers will take a standard 12V panel and boost the voltage to charge a 24V, 36V or 48V battery pack.  In fact, the GVB's will work with almost any panel that's below your battery voltage. This makes finding a good panel easy:  just make sure to stay below 8A panel current and 63 Volts (open circuit). Larger panels are cheaper per Watt than smaller panels, so using one large panel and a boost controller results in a significantly lower system cost than smaller panels in series with a conventional charge controller.

Unmatched Reliability
Genasun controllers are deployed to the most remote locations on earth. They continue delivering power after years at sea, through harsh Antarctic winters, in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Each controller we ship has passed a thorough electrical test to ensure reliability. If you need mission-critical power, this is your controller.

High-Speed MPPT: Always on Target
Not all Maximum Power Point Tracking controllers were created equally. Most use a sweep and sleep method that scans the entire voltage range every 30-60 seconds. That's okay for a clear day, with a stationary panel. But moving vehicles, and changing cloud cover requires a faster, more advanced controller. Genasun controllers adapt to changing light conditions 15 times every second. They are always on target, capturing every bit of available sunshine. Simply put, other controllers can't keep up.

Computer controlled, 4-Stage battery charging
Precise computer controlled charging ensures the optimal charge cycle for your battery. This increases the battery life, and maximizes battery capacity.

Made in the USA

LED Display
The built-in LED will quickly tell you that you've installed the controller correctly. Simple to read, it will also let you know when the battery is charging from solar power, and when the battery has reached full charge.

Built-in Fuse
The GVB controller comes with a fuse built into the power line. This will keep your cart operating safely, reduce the chance of an incorrect installation, and allow end-users to make a quick fuse replacement if needed.

Waterproof: Go ahead, hose it off.
The advanced electronics inside your controller are encased in a proprietary potting compound. After extensive testing with a variety of formulations, we developed a perfect potting compound for our GVB controllers. This extra level of protection ensures trouble-free operation in real-world golf-cart and other vehicular applications.

By Popular request: What the heck is "Passive" or "Nominal" MPPT?
We were confused too. There are a number of golf-cart boost controllers that are advertised as MPPT controllers . . . until you read the fine print. Some clever marketers or lazy engineers came up with the idea that you can "passively" track the Maximum Power Point by operating at a fixed voltage. This is a joke. Tracking is the essential part of Maximum Power Point Tracking. Why? The Maximum Power Point changes. Tracking is the way you adapt to that change, and collect more power. "Passive" turns out the mean that the controller manufacturer took a guess and picked a voltage that will provide the maximum power for one specific panel, at one specific angle, in one specific lighting condition, at one latitude, at one specific time of the year.  With this type of controller, you'll be lucky to get the the maximum potential power a few times a year. The rest of the time, you'll be loosing a lot of the panel power you paid for.  In our own tests in with a competitor's buck controller advertising "Nominal MPPT", we found that the performance was often significantly worse than even a PWM controller.

  • 99.85% Peak Efficiency moves more power
  • 10%-50% more power than PWM controllers
  • Ultra high-speed MPPT harvests more power
  • Electrolytic free + CeramicDrive construction adds 10+ years of operation
  • Improve battery life with 4-stage battery charging
  • Electronic overload protection keeps your system safe
  • Automatic recovery from fault conditions keeps your system making power
  • Shade-tolerant tracking improves performance by up to 50%
  • Works with Flooded / Sealed / AGM / Gel batteries


Rated Panel (Input) Current:8A
Minimum Panel Voltage for Charging:5V
Minimum Battery Voltage for Operation:9.5V
Absolute Maximum Panel Open-Circuit Voltage (Voc):63V
Nominal Battery Voltage:36V48V
Maximum Recommended Panel STS Maximum Power Voltage (Vmp):41V43V
Maximum Recommended Panel Power (8A Panel w/~155mm cells):325W350W
Bulk Voltage:43.2V57.6V
Absorption Voltage:42.6V56.8V
Absorption Time:2 Hours
Float Voltage:41.4V55.2V
Battery Temperature Compensation:-84mV/°C-112mV/°C
Electrical Efficiency:96% - 98% typical96% - 99% typical
Night Consumption:6mA5mA
Tracking Efficiency:99+% typical
MPPT Tracking Speed:15Hz
Connection:Flying Leads, 16 AWG tinned wire, pre-stripped
Weight:10.3oz (290g)
Dimensions:5.5x3.2x2.2", (14x8.1x5.5cm)
Warranty:2 years

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Genasun 8A 36V GV-Boost MPPT Solar Charge Controller, Waterproof for Golf Carts

  • Product Code: GVB36-8-Pb-WP
  • Availability: In Stock
  • $269.95