Dayan Cube 3 PCS Original Replacement Lipo Battery 2700mah 7.4V + Charging Cable + Balance Charger + Battery Charger for Hubsan H501S (US Plug) 100%Brand new and high quality Usage:Hubsan X4 FPV Brushless H501s Quadcopter Built-in protection mechanism ensures safe charging and use Enhance your flying experience by using only manufacturer recommended spare parts If you have any question, please do not hesitate to contact us