Specification: Brand: Zeee Voltage: 18.5V Capacity: 4000mAh Discharge Rate(C): 100C Configuration: 5S1P Connector Type: EC5 Connector Balancer Connector Type: JST-XH Length: 139.5mm/5.49inch Width: 42mm/1.65inch Height: 40.5mm/1.59inch 【5S Battery Application】 - Zeee 4000mAh 5S RC Lipo battery compatible with RC Airplane, Truck, Helicopter, RC car, RC Boat, etc(Only if the voltage, dimension and the plug match, then it will fit). Package Including: 2 x Zeee 18.5V 100C 4000mAh 5S RC Lipo Battery Soft Case with EC5 Plug 1 x User manual 1 x Wrapped box .