Life Po4 Battery, Lithium Battery, Energy Storage System manufacturer / supplier in China, offering Factory Price 3.7V 4000mAh Li-Polymer Battery Pack OEM 704350pl for Digital Cash Registers and Power Tools, Hight Quality 3.7V Li Polymer Battery 6065145/62129166 7000mAh/15000mAh Large Capacity Polymer Battery, Customized OEM ODM 3.7V 3000mAh 755060 Lithium Polymer Battery Pack and so on.