Solar Charger Controller also regulates the rate at which electric current is added to or drawn from batteries. It prevents overcharging, and over and variable voltage which if not controlled can reduce battery performance or life span and may pose a safety risk. It also prevents complete drainage (”deep discharge”) of a battery and facilitates controlled discharge thereby maintaining the battery’s longevity. Equipped with Micro controller and Digital Signal Processing (DSP) technology Solar Charger Controller is fully protected against transient overvoltage and reverses the current flow, and can charge any type of battery.