Waterproof Solar Boost Controller for 36V Li-ion Batteries

Waterproof Solar Boost Controller for 36V Li-ion Batteries

Waterproof Solar Boost Controller for 36V Li-ion Batteries

  • 5 890 CZK

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  • Ex Tax:4 868 CZK

The industry's most efficient boost controllers
This Genasun waterproof controller boosts lower-voltage solar panels up to charge higher voltage batteries:

  • Compatible with 36V nominal Li-ion batteries (with 42V chargers)
  • 325W maximum panel power
  • 99% Peak Efficiency
  • Waterproof IP68
  • Advanced electronic protections
  • Continuous MPPT
  • In-line fuse
  • Excellent low-light performance
  • Easy installation
Made in the USA, each controller is put through complete electrical testing to ensure reliability.

High-Speed MPPT: Always on Target
The Genasun controllers  are always on target, capturing every bit of available sunshine. They adapt to changing light conditions 20 times every second.

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

LED Indicator
The built-in LED will quickly tell you when the battery is charging and when it 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 and outlast the competition.


  • 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
  • Float/CV Voltage: 41.7V
  • Nominal Battery Voltage: 36V
  • Maximum Recommended Panel Vmp: 39V
  • Maximum Recommended Panel Power: 325W
  • Electrical Efficiency: 96%-98% typical
  • Night Consumption: 6mA
  • Charge Profile: CC/CV
  • 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

Charging the battery of Bosch and Shimano eBike systems requires the original charger and works only if the engine is off. Consequently, solar charging is not allowed with these brands.

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Tags: Genasun, Waterproof, Solar, Boost, Controller, mppt, 36V, Li-ion, Batteries, battery