Morpilot for Hubsan x4 Pro H501S Pro H501A H501C 2S 2700mAh 7.4V 10C 20Wh RC Drone LiPo Battery High Performance with Charging Protection Genuine Parts Guarrantee Extra Flight Time Usage:Hubsan X4 FPV Brushless H501s Quadcopter Enhance your flying experience by using only manufacturer recommended spare parts Built-in protection mechanism ensures safe charging and use Capacity: 2700mAh Voltage: 7.4V Power:10C Morpilot H501S battery come with a 30-day money back and a 12-month limited seller's guarantee against manufacturer defects from date of purchase, and 24 hours' friendly customer service