Floureon 2Pakcs 2S2P 7.4V 8000mAh 40C Lipo Battery (Deans Plug) 5.31.721.05 inch for RC Quadcopter Airplane Helicopter Car Truck Boat Hobby Chemistry: Li-Polymer; Cells Number: 2S2P ; Voltage:7.4V ; Capacity: 8000mAh Discharge Rate: 40C ; Charge Plug: JST-XH ; Dimension:5.3*1.72*1.05 inch; Weight: 12.04oz Compatible: for RC Airplane, RC Helicopter, RC Quadcopter, RC Car, RC Truck, RC Boat, RC Hobby Note: Ready-to-Run, Please select the right connector according to your original battery. All the FLOUREON products sold by SEVESTO comply CE, RoHS, MSDS, UN38.3 Certifications.