A highefficiency DC to DC converter that presents an optimal electrical load to asolar panel or array and produces a voltage suitable for the load.most commonlyfor a solar panel or array, and converts the power to a voltage or currentlevel which is more suitable to whatever load the system is designed to drive.

       MaximumPower Point Tracking is electronic tracking – usually digital. The chargecontroller looks at the output of the solar panel, and compares it to thebattery voltage. It then figures out what is the best power that the panel canput out to charge the battery. It takes this and converts it to best voltage toget maximum AMPS into the battery. (Remember, it is Amps into the battery thatcounts). Most modern MPPT’s are around 93-97% efficient in the conversion. Youtypically get a 20 to 45% power gain in winter and 10-15% in summer. Actualgain can vary widely depending weather, temperature, battery state of charge,and other factors.

       Efficiencyis around 94% to 97% for the MPPT solar charge controller. These typically giveyou about a 15% increase in winter and up to a 35% increase in summer.