Life Po4 Battery, Lithium Battery, Energy Storage System manufacturer / supplier in China, offering Wholesale Factory Price China 18650 4s1p 12.8V / 12V Lithium Li Ion Battery Pack, 18650 4s1p 12.8V / 12V Lithium Li Ion Battery Pack with Plastic Casing / Housing / Color Label, Customize High Capacities 18650 Lithium-Ion Battery Pack with BMS for Power Tool & E-Bike and so on.