Provide excellent continuous power. Can be used with toys, calculators, laser pointers, calculators, cameras, clocks, watches, computers, games, digital cameras, camcorders, PDAs, remote controls, electronic instruments, MP3 players, digital voice recorders, blood glucose meters, cholesterol testing meters, LED lights and other electronic appliances. High energy density, long life expantancy. Also known as: DL2450, BR2450, LM2450, 5029LC, KCR2450 Specifications Lithium CR2450 Battery(Single Use) Voltage: 3V Diameter: 2.4cm / 0.94”