2x7.4V 2700mAh 10C Original Battery For Hubsan H501S X4 RC Quadcopter Description: Brand Name: Hubsan Item No.: H501S Item Name: Battery Voltage: 7.4V Capacity: 2700mAh Power:10C Energy: 17.02Wh Maximum charging power:7.4W Dimension:10.4*3.35*1.6cm Weight: about 210g Charging time: About 150mins Usage: for Hubsan H501S X4 RC Quadcopter Package Included: 2 x Battery