The US Dual Charger Station Dock + 2pcs Rechargeable Battery for XBOX 360 Controller is a convenient and efficient charge kit specifically designed for Microsoft Xbox 360 controllers. With a high energy charge of 4800 mAh, this product ensures that your controllers are always ready to game. The manufacturer offers a 1-year warranty, providing peace of mind for the longevity of the product. Compatible with both the console and controllers, this rechargeable battery set is a must-have accessory for any avid gamer looking to keep their gaming sessions uninterrupted.