Genuine HUBSAN X4 107C Quadcopter Rechargeable Flight Battery (3.7V, 380mAh LiPo) 3.7V 380mAh LiPo High-Rate Replacement Battery compatible with Hubsan X4 H107C, DFD F180, F180C RC Quadcopter Batteries come equipped with built-in protection mechanism for safe charging and use. Enhance your flying experience by using only manufacturer recommended spare parts. Each battery provides 7-9 minutes of flying time. Charging time is between 45-60 minutes. Rechargeable up to hundreds of times.