DJI Phantom 2 [Vision] Battery Pack 11.1V 5400mAh 10C LiPo (Limefuel Air L54P) Extended Spare Replacement Battery for use with DJI Phantom 2 Quadcopter Drone including Vision, and Vision+, Compatible with Phantom 2 Charger DJI firmware battery update has been removed from the Assistant program as of 10/30/14; Limefuel Air is compatible with all DJI firmware updates. Extra flight time!! 5,400mAh Battery provides an additional 200mAh over other battery models. Use as a replacement or keep extra batteries on hand to reduce delays between flights and increase time in the field. No need to connect any cables! Battery pack is easy to insert and remove. Powers up quickly to get you back in the air. Protection against overcharge, short circuit and over discharge. Compatible with Phantom 2 charger. 4 LED indicator lights indicate level of charge to easily see amount of power and flight time remaining. Press power button once to check charge level. Protection against overcharge, short circuit and over discharge. Compatible with Phantom 2 charger.