GVB-8-WP (Boost)
105W/210W/325W/350W | Solar charge controller with MPPT

The industry's most efficient boost controllers. These controllers boost lower-voltage solar panels up to charge higher-voltage lead-acid batteries up to 48V nominal

8A 12/24/36/48V Boost MPPT Controller

  • 99% Peak Efficiency
  • Waterproof
  • In-line fuse
  • IP68
  • Excellent low-light performance
  • Wire leads for easy installation
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Get your money’s worth with Genasun.

A true problem-solver, the unique GVB charge controller with MPPT allows a lower-voltage solar panel to charge higher-voltage batteries. Want to charge a 24V battery with a 48-cell solar panel? No problem. A 48V battery from a 12V panel? We’ve got you covered. With 99% peak efficiency, they are the industry’s most efficient voltage-boosting controllers. True MPPT delivers consistent performance, unlike the “Nominal MPPT” of competitors. The advanced electronics inside the controller are encased in a proprietary potting compound making them ideal for golf-cart, marine, and vehicle applications

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 golf cart solar charge controllers will take almost any solar panel and boost the voltage to charge a 36V or 48V battery pack. Because these controllers feature true MPPT, no configuration is necessary; the controller will automatically adapt to your panel. 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, not to mention simpler wiring and installation.

LED Indicator

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.

No Fans. No Relays.

Fans get clogged with dust and dirt. Relays eventually stop switching. Genasun controllers use advanced electrical design that obsoletes these parts. With fewer moving parts to wear out, Genasun controllers outlast the competition.

For Lead-Acid Batteries

GVB-8-Pb-12V-WP GVB-8-Pb-24V-WP GVB-8-Pb-36V-WP GVB-8-Pb-48V-WP
Rated Panel Input Current 8A*
Minimum Panel Voltage for Charging 5V
Minimum Battery Voltage for Operation 9.5V
Maximum Input Panel 60V
Recom. Max Panel Voc at STC 50V
Input Voltage Range 0-60V
Maximum Input Short Circuit Current 8A*
Maximum Input Current 15A
Tracking Efficiency 99+% typical
MPPT Tracking Speed 15hz
Charge Profile Multi-Stage with Temperature Compensation
Nominal Battery Voltage 12V 24V 36V 48V
Maximum Recommended Panel Vmp 13V 26V 41V 43V
Maximum Recommended Panel Power 105W 210W 325W 350W
Bulk Voltage (Pb models) 14.4V 28.8V 43.2V 57.6V
Absorption Voltage 14.2V 28.4 42.6 56.8
Absorption Time 2 Hours
Float Voltage (Pb models) 13.8V 27.6V 41.4V 55.2V
Electrical Efficiency 95%-97% typical 96%-98% typical 96%-98% typical 96%-99% typical
Night Consumption 7mA 6mA 6mA 5mA
Battery Temperature Compensation -28mV/°C -56mV/°C -84mV/°C -112mV/°C
Operating Temperature -40°C – 85°C
Maximum Full Power Ambient 70°C
Environmental Protection IP68 (Waterproof)
Connection Flying Leads, 16 AWG tinned wire, pre-stripped
Weight 10.3oz (290g)
Dimensions 5.5 x 3.2 x 2.2", (14 x 8.1 x 5.5 cm)
Warranty 5 years

For Lithium Batteries

GVB-8-Li-14.2V-WP GVB-8-Li-28.4V-WP GVB-8-Li-41.7V-WP GVB-8-Li-54.2V-WP GVB-8-Li-56.8V-WP
Rated Panel (Input) Current 8A*
Minimum Panel Voltage for Charging 5V
Minimum Panel Voltage for Operation 9.5V
Absolute Maximum Panel Open-Circuit Voltage (Voc) 60V
Recommended Max Panel Voc at STC 50V
Input Voltage Range 0-60V
Maximum Input Short Circuit Current** 8A*
Maximum Input Current** 15A
Tracking Efficiency 99+% typical
MPPT Tracking Speed 15hz
Charge Profile CC/CV
Battery Type 4S LiFePo4 8S LiFePo4 10S Li-ion 13S Li-ion 16S LiFePo4
Maximum Recommended Panel Vmp 13V 26V 39V 43V 43V
Maximum Recommended Panel Power 105W 210W 325W 350W 350W
Float/CV Voltage 14.2V 28.4V 41.7V 54.2V 56.8V
Electrical Efficiency 95%-97% typical 96%-98% typical 96%-98% typical 96%-99% typical 96%-99% typical
Night Consumption 7mA 6mA 6mA 5mA 5mA
Operating Temperature -40°C – 85°C
Maximum Full Power Ambient 70°C
Environmental Protection IP68 (Waterproof)
Connection Flying Leads, 16 AWG tinned wire, pre-stripped
Weight 10.3oz (290g)
Dimensions 5.5 x 3.2 x 2.2", (14 x 8.1 x 5.5 cm)
Warranty 5 years
* Panel ratings have increased since we designed the GVB. Although we don't believe in changing specifications without a corresponding engineering change, based on both our customers' experiences over the years as well as the headroom we designed into the GVB, we feel comfortable recommending the GVB for panels with Imp up to 9A.
** Panel Isc. Maximum input power and maximum input voltage requirements must also be respected.
*** Maximum current that the controller could draw from an unlimited source. This specification is not intended for determining PV input.