Since 1925, Trojan Battery Company has been the world's leading manufacturer of deep cycle batteries. Founding partners, George Godber and Carl Speer, started the company in the Los Angeles area after serving on a submarine in World War I. Trojan began by manufacturing automotive... more

SPS and its associated engineering organizations has designed numerous power supplies, battery chargers, dc/dc converters, and auxiliary cards since its inception in 1986. Several patents have resulted from these designs. SPS focuses on the electric vehicle market including Neighborhood... more