Battery, Lithium Battery, Lithium Polymer Battery manufacturer / supplier in China, offering Custom 18650 Cells 3.7V 7.4V 11.1V Lithium Battery with Jst Connector, Ultra Thin Lipo Battery 304050 Lithium Ion Cell 3.7V 650mAh Battery, Customized 3.7V Lipo Battery 500mAh 503035 for Bluetooth Headset and so on.