Marine Grade.  This is a very unusual charge controller in that it can charge a battery of a HIGHER voltage than the solar panel output that feeds it.  In this way, you can charge a nominal 48v lithium  battery pack to a precise 56.8v using a solar panel that puts out 33v at its maximum power point.  This is the only device we've found that will do that.

We had these specially made by Genusun in their waterproof casing - fully potted and in a plastic enclosure.  This will last forever in marine/boat applications as well as golf cart canopies or other outdoor in the weather applications.

This one is designed to charge 16 LiFePo4 cells to 56.8v using a Constant Current/Constant Voltage charge curve perfect for our LiFePo4 cells.  

But it can do it from ANY of our flexible solar panels - a single panel. 

Why?  Put a single panel on the roof of your golf cart or the deck of your john boat and use this to charge a 48v battery pack at up to 8 amps.  It could not be simpler.  We haven't seen anything else out there like this "boost" charge controller device.

14.2 V SOLAR CHARGE CONTROLLER  This MPPT charger controller is designed to charge 4 LiFePo4 cells to 14.2v at up to 8 Amps using a Constant Current/Constant Voltage charge curve perfect for our LiFePo4 cells.  

This will work with any of our flexible solar panels

A 200 WATT SOLAR PANEL UNLIKE ANY YOU'VE SEEN

 This lightweight, high efficiency solar panel is unusually well suited to electric boats, aircraft, RVs and  electric vehicles.  Here's why:  

LIGHT WEIGHT at just 3.3 kilograms - 7.275 pounds each.

VERY THIN - just 3 mm (0.118 inches) thick and built on a very durable flexible acrylic sheet.  This means you can mount it on curved surfaces up to 30degree bend with minimal wind resistance.

VERY HIGH EFFICIENCY -  cell efficiency  20.8%.  While the panel is made in China, the individual cells are made in the Phillippines  by SUNPOWER using their MAXEON back connect technology for very high efficiencies

So for example, you could build an array of 10 sheets that would weigh just 75 lbs and put out 2000 watts - a truly useful amount of energy.  You could actually charge an 20kWh pack in 10 hours - about two days in the sun.  

A 120 WATT SOLAR PANEL UNLIKE ANY YOU'VE SEEN

This lightweight, high efficiency solar panel is unusually well suited to electric boats, aircraft, RVs and  electric vehicles.  Here's why:  

LIGHT WEIGHT at just 2.45 kilograms - 5.4 pounds each.

VERY THIN - just 3 mm (0.118 inches) thick and built on a very durable flexible acrylic sheet.  This means you can mount it on curved surfaces with minimal wind resistance.  About 30% deflection is possible.

VERY HIGH EFFICIENCY -  20-23%.  This panel is made for EVTV in China using a special laminate. But the individual cells are made in the U.S. by SUNPOWER using their MAXEON back connect technology for efficiencies up to 24%.

What this means is that you can put solar panels in places impractical before.  The lightweight, thin, flexible panels can be attached to RV roofs, boat decks, canopies, and places where the usual 45 lb stiff framed glass panels would simply be absurd.

And since real estate on these "vehicle" applications is limited, paying for the extra efficiency of these superior cells actually makes sens
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