Genasun 8A 48V GV-Boost MPPT Solar Charge Controller

  • Charges a 48V battery from a lower voltage solar panel
  • Voltage-boosting for 48V 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 5-year warranty
Genasun's 48V, 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 350W solar modules. Now you can charge your 48V battery bank from a single lower voltage solar module, easily and efficiently.

Want to see a 27V grid-tie panel charge a 48V battery pack? Get a GVB.
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.

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, 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.

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.

  • 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
  • Marine grade and non-corrosive terminals


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
Charge Profile:Multi-Stage with Temperature Compensation
Nominal Battery Voltage:12V24V36V48V
Maximum Recommended Panel Vmp:13V26V41V43V
Maximum Recommended Panel Power (8A Panel w/~155mm cells):105W210W325W350W
Bulk Voltage:14.4V28.8V43.2V57.6V
Absorption Voltage:14.2V28.4V42.6V56.8V
Absorption Time:2 Hours
Float Voltage (Pb models) or CV Voltage (Li models):13.8V27.6V41.4V55.2V
Battery Temperature Compensation:-28mV/°C-56mV/°C-84mV/°C-112mV/°C
Electrical Efficiency:95% - 97% typical96% - 98% typical96% - 98% typical96% - 99% typical
Night Consumption:7mA6mA6mA5mA
Tracking Efficiency:99+% typical
MPPT Tracking Speed:15Hz
Marine Grade:Yes
Connection:4-position terminal block for 10-30AWG wire
Weight:6.5oz., 185g
Dimensions:5.5x2.5x1.2", 14x6.5x3.1cm
Warranty:5 years

Write a review

Note: HTML is not translated!
    Bad           Good

Genasun 8A 48V GV-Boost MPPT Solar Charge Controller

  • Product Code: GVB-8-Pb-48V
  • Availability: In Stock
  • $208.95