8A MPPT Boost 12V for Lead-Acid Genasun Solar Charge Controller

up to 105W. charge 12V battery from small solar panel

Boosts lower-voltage solar panels up to charge higher-voltage lead-acid batteries. 24V, 36V & 48V also available

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Boosts lower-voltage solar panels up to charge higher-voltage lead-acid batteries. 24V, 36V & 48V also available

Genasun GV-Boost 105-350W Solar Boost Charge Controller with MPPT

Most solar charge controllers move power from a higher voltage panel to a lower voltage battery bank. This controller, in contrast, pump electricity up hill.

This controller will take a lower voltage panel and boost the voltage to charge a 12V battery pack. In fact, the GVB's will work with almost any panel that's below your battery voltage.

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.

Mission-Critical Reliability

Genasun controllers are deployed to the most remote locations on earth. They endure years at sea, harsh Antarctic winters, freezing conditions in the upper atmosphere on solar powered airplanes, and in a few off-the-map locations. Made in the USA, each controller is put through complete electrical testing 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 require 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, temperature-compensated 3-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



  • 99% Peak Efficiency
  • Continuous MPPT
  • Marine-Grade
  • Advanced electronic protections
  • 5-Year Warranty.

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.

Marine Grade: Reliable Power After Years at Sea
Genasun Boost controllers provide reliable power in the harshest environments on earth. GVB's have been powering boats on round-the-world sailing races for years.

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.

  GVB-8-Pb-12V GVB-8-Pb-24V GVB-8-Pb-36V GVB-8-Pb-48V
Rated Panel (Input) Current: 8A*
Minimum Panel Voltage for Charging: 5V
Minimum Battery Voltage for Operation: 9.5V
Maximum recommended Panel Open-Circuit Voltage (Voc) at STC: 51V
Absolute Maximum Panel Open-Circuit Voltage (Voc): 63V
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 (8A Panel w/~155mm cells):

For higher power controllers, please visit the Blue Sky Energy Product Page.
105W 210W 325W 350W
Bulk Voltage: 14.4V 28.8V 43.2V 57.6V
Absorption Voltage: 14.2V 28.4V 42.6V 56.8V
Absorption Time: 2 Hours
Float Voltage (Pb models) or CV Voltage (Li models): 13.8V 27.6V 41.4V 55.2V
Battery Temperature Compensation: -28mV/°C -56mV/°C -84mV/°C -112mV/°C
Electrical Efficiency: 95% - 97% typical 96% - 98% typical 96% - 98% typical 96% - 99% typical
Night Consumption: 7mA 6mA 6mA 5mA
Tracking Efficiency: 99+% typical
MPPT Tracking Speed: 15Hz
Marine Grade: Yes
Waterproof: NO NO (See Genasun Model GVB-WP)
Connection: 4-position terminal block for 10-30AWG wire
Weight: 6.5oz., 185g
Dimensions: 5.5x2.5x1.2", 14x6.5x3.1cm
Warranty: 5 years


SKU GVB-8-Pb-12V

Product Function and Performance

Product Weight and Dimensions

Shipping Weight and Dimensions

Shipping Weight 0.2350kg
Shipping Width 0.075m
Shipping Height 0.055m
Shipping Length 0.180m
Shipping Cubic 0.007425m3

The GV-Boost solar charge controllers carry a 5-year warranty on materials and workmanship. GenasunŸ??s warranty does not cover damage due to abuse or operation beyond the rated specifications.

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