CR2430 lithium button cells are commonly used in car security (car
alarm/keyfob batteries), organizer (backup battery for PDA such as Psion etc),
and glucometer equipment. CR2430 lithium button cells are also often found in
camera, electric thermometer, calculator, computer equipment (memory backup
battery), toys, accutron, communication equipment, electronic watches/clocks,
card radios, data pack for video camera.