The standard voltage of the battery is 7.4V  It’s assembled in two series and one parallel. The size is flexible. It can be widely used in medical equipments, vehicle charging pumps, vehicle vacuum cleaners, portable electric tools, etc. The capacity of battery pack can be customized according to customers' requirements. The capacity specifications of battery pack can be customized with 2000mAh 0.5C, 2200mAh 0.5C, 2000mAh 5A, 2500mAh 5A, 2000mAh 10C cells with sufficient supply and stable quality from Density.