Wind Charge Controller is battery charger that can charge batteries by the power from the wind turbine. The charge controller is intelligent for charging batteries, it has 3 stages of charging batteries, first is current limited to charge batteries, 2ND is voltage limited to charge batteries, and 3rd is compensating to charge batteries. This will prolong the life of batteries. 

The Wind Charge Controller has a built in dump load controlling system, it can maintain the rotating speed of the wind turbine and keep the voltage of charging batteries when the wind is too big. It also has a high voltage protection function, when the wind is too big, and the dump load controlling system can't keep the output voltage from the wind turbine, the controller will disconnect itself from the wind turbine, so it is very safe to be used.