Charge Controller A charge controller’s main function is to optimize a PV array’s output which can fluctuate based on shading and temperature variables found on the average roof. Charge regulator is basically a voltage and/or current regulator to keep batteries from overcharging. It regulates the voltage and current coming from the solar panels going to the battery. Outback Power : The FLEXmax family of charge controllers is the latest innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power.
