Rechargeable LiPo batteries LP504561 3.7V 1850mAh with 6.845W With PCM &  10K NTC & wires 50mm & connector Model Rechargeable LiPo batteries LP504561 3.7V 1850mAh with 6.845W Type Rechargeable LiPo battery Capacity 1850mAh Voltage 3.7V Energy 6.845Wh Net...