Wholesale Batteries & Battery Holder, Button cell battery, polymer, volt, aa, aaa -  by Maxell / Sony / Panasonic / TOBE - CR2032, 2025, 2016, 1616 ....... etc.  It is widely use in electric appliances, including power supply and standby power supply for laptop computer, memory card, music card, calculator, electric clock and watch, camera, electric toys, mini-radio apparatus, water meter, electricity meter, gas meter, mobile, medical apparatus and instruments......etc.