LP536596 4200mAh 7.4V 2S LiPo Batteries With PCM &  wires 50mm  Model LP536596 4200mAh 7.4V 2S LiPo Batteries Type Rechargeable LiPo battery Capacity 4200mAh Voltage 7.4V Energy 31.08Wh Net Weight 160 g Detail Protection circuit&50mm wires Dimension 10.6mm*...