Phocos second battery charger and excess energy manager

This product offers excess energy management functionality that provides usable energy that would normally be wasted because the battery cannot accept the extra solar energy. It is also possible to charge a second battery with excess energy. This is widely used in mobile-homes and boats which often have a battery for the solar system and a second battery for starting the engine. Another typical application is to power a small fan for air exchange on a boat powered only with excess energy. Only your imagination limits the number of possible applications.