Li-ion 3.6v 60mAh Shenzhen Thumbcells Co.,Ltd.is ... development,manufacturing and marketing of various kind of batteries and electronic products.Since the year 2000, ... cell, SR/SG silver oxide button cell, CR lithium manganese button cell, 12V (23V/27V) combination button ... products comply with the international standard. Therefore the batteries are widly applied to wristwatch, computer, music card ...