KP 7.4V 2000mAh 13A Li-ion JST SM 4pin connector SM-2P Rechargeable Battery for DIY projects, Toys, Robotics, Please check the connector of battery, Please check the size of battery Battery size 20mm X 36MM X 65 MM,Nice Battery and full backup. THIS IS 4 PIN CONNECTOR 18650 BATTERY, PLEASE CHECK SIZE BEFORE ORDER. Check your exsting connector of the device, its its matching then only buy this battery. check connector type first then only buy