Powerextra 11.1V 4000mAh 30C Lithium Polymer Replacement Battery Pack With Universal Plug System For RC Airplane, RC Helicopter, RC Car/Truck, RC Boat Battery Type: Lithium Polymer / Battery Volts: 11.1V / Battery Capacity: 4000mAh Charge current: 4A (1C) Continous discharge current:120A (30C) Weight: 11.0 oz (312.0 g), Dimensions: 24 x 44 x 136 mm Plug Type:Universal Plug System 30 days 100% money back and 1 year warranty.Please feel free to contact us!