8A MPPT 12V (14.2V) BOOST for Lithium Genasun Solar Charge Controller
up to 105W. Made in USA. 5 year warranty.
Boosts lower-voltage solar panels up to charge higher voltage 12V lithium batteries. 24V also available.
Genasun GV-Boost 105-350W MPPT Solar Boost Charge Controller for Lithium Batteries
Want to see a 27V grid-tie panel charge a 48V battery pack?
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. This controller will take a lower voltage panel and boost the voltage to charge a 24V 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.
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.
Advanced Lithium Charging Algorithms
Drawing on more than 10 years of advanced lithium battery and controller development, Genasun offers a complete line of lithium solar charge controllers. These units employ industry-standard Constant-Current Constant-Voltage (CC/CV) charging for widest battery compatibility. Custom Voltages Available
Genasun GV-Boost come in 12V, 24V and 48V nominal charge profile for LiFePO4 batteries. The standard float voltages correspond to 3.55V per cell for compatibility with most batteries (check with your battery manufacturer to be sure).
Custom voltages can be programmed at the factory to match the float Voltage (CV voltage) of your battery chemistry.
Made in the USA
General guidance for selecting the appropriate solar charge controller - always contact Solar 4 RVs in case of doubt.
Nominal Battery voltage. Genasun provides separate chargers for different chemistries, whereas the Victron chargers are suitable for both lead-acid and lithium.
* Alternatively, to use a conventional Victron MPPT charge controller, panels can be wired into series which increases the voltage, e.g. four SP104 panels wired in series provides 128 cells in series giving 4x 18.2V = 72.8V which can be used for charging a 48V battery system. The wattage is 4 x 104W = 416W. At 48V, the theoretical maximum amps is 416W / 48V = 8.6A. In real-life with a hot panel under a hot sun the efficiency is lower so the maximum amperage is up to 80% of the theoretical. The smallest Victron MPPT charge controller for 48V is the SmartMPPT 100/20.
The following table lists the minimum number of cells in series that are required so that a conventional charge controller can be used and accommodate the voltage drop of the panel as temperature rises. For safety, it is always recommended that DC voltage is kept as low as possible, i.e. a minimum number of panels are wired in series, i.e only wire enough panels in series just sufficient to provide the necessary Vmp required by the MPPT charge controller. For example, Victron requires a Vmp of at least 4V above the battery voltage when the panel is hot.
|SunPower SP range||32||64||96||128|
|SR & SXp Range||36||72||108||144|
- 99% Peak Efficiency
- Continuous MPPT
- Advanced electronic protections
- 5-Year Warranty.
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.
|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|
|Nominal Battery Voltage:||12V (4-cell LiFePo4)||24V (8-cell LiFePo4)||48V (16-cell LiFePo4)||(See specs for closest equivalent.)|
|Maximum Recommended Panel Vmp:||14V||28V||43V|
|Maximum Recommended Panel Power (8A Panel w/~155mm cells):
For higher power controllers, please visit the Blue Sky Energy Product Page.
|Float/CV Voltage:||14.2V||28.4V||56.8V||**.*V as specified in part number|
|Electrical Efficiency:||95% - 97% typical||96% - 98% typical||96% - 99% typical||(See specs for closest equivalent.)|
|Tracking Efficiency:||99+% typical|
|MPPT Tracking Speed:||15Hz|
|Waterproof:||No||No||No (See Genasun Model GVB-8-Li-56.8V-WP)||No|
|Connection:||4-position terminal block for 10-30AWG wire|
Product Function and Performance
Product Weight and Dimensions
Shipping Weight and Dimensions
The GV-Boost solar charge controllers carry a 5-year warranty on materials and workmanship.
Genasun's warranty does not cover damage due to abuse or operation beyond the rated specifications.