Profile: Supreme Technologies Inc. manufactures batteries and battery chargers. We manufacture alkaline, nickel metal hydride, nickel cadmium batteries and custom battery packs. The 6 volt models include 6 volt lantern batteries, and consist of 4 cells combined/connected to form a battery pack, & are placed in a plastic case to form a single cell. The 12 volt alkaline battery models include cells as small as alkaline 23A battery, AAAA, also known as 4-A battery, up to alkaline J-1214-P battery, & 12 volt alkaline batteries for larger applications.