The DJI Intelligent Battery is a 5200 mAh, 11.1 V lithium-polymer battery made for the Phantom 2 series. This includes the Phantom 2, Phantom 2 Vision and Phantom 2 Vision+. It slots into an opening in the tail of the Phantom 2 body and features four LEDs that display remaining battery capacity. Power management is handled internally, meaning it doesn't require a separate balance lead to control charging.