Li-Fe AA 2700mAh 3.6v Shenzhen Thumbcells Co ... development,manufacturing and marketing of various kind of batteries and electronic products.Since the year 2000, ... 12V (23V/27V) combination button cell,green cylindrical type (AA, AAA) carbon, alkaline battery, 9V (6F/22) battery ... products comply with the international standard. Therefore the batteries are widly applied to wristwatch, computer, music card ...