Features: - The best charging dock kit for controller battery, Includes two 2800mAh rechargeable battery for Xbox one remote controllers. - 2 Rechargeable Battery Packs for Xbox one. As there is two batteries you can charge one while using another one. - This Xbox one battery pack can be fully charged in under 4 hours. - Xbox One Rechargeable Battery Pack: Includes 2 Rechargeable battery (2800mAh) packs, and charging cable What's in the box 2 x XBox one Rechargeable Batteries 1 x Cable