Battery, Lithium Battery, Lithium Polymer Battery manufacturer / supplier in China, offering CB IEC62133 Kc Approval Lipo Batteries 503030 3.7V 400mAh Lithium Polymer Battery, Small Good Battery 501440 Great Power Batteries for GPS Tracker 3.7V 300mAh, OEM Lithium Battery 3.7V 606090 4000mAh Lipo Battery for Power Bank and so on.