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 the camera, electric thermometer, calculator, computer equipment (memory backup battery), toys, Accutron, communication equipment, electronic watches/clocks, card radios, data pack for the video camera.
