11.1V 1500mAh 20C Recyclable High Power LiPo Battery with 2 plug Designed for Parrot AR.Drone 2.0 Quadcopter Long Flight Time|Rechargeable Batteries| - AliExpress
ar drone 2.0 charger
Making a "DIY" Lipo Battery Pack (for an AR Drone) - Ec-Projects - YouTube