CR2450 lithium button battery nominal voltage of 3V, is 2 times the battery, which uses chemically very stable manganese dioxide as cathode materials and a very high specific energy lithium as the anode material. Self-discharge rate of less than 2%, long storage life. Sealed battery with reasonable structure and material, good air tightness, very safe to use. Lithium batteries have a wide temperature characteristics, in -20 ℃ - +60 ℃, the battery can work effectively stored for one year. Lithium Manganese Dioxide batteries are widely used in electronic dictionary, camera, remote control, blood glucose tester, body fat tester, automotive tire pressure gauge, electronic scales, calendar, toys, watches, attendance, MP3, radio, electronic flash products