Remove the need to constantly change your controller batteries with expensive disposable batteries. Our handy rechargeable battery packs are made to measure to fit your Xbox Series X and Xbox One controller. Our money saving twin Pack offer 2 x 850Mah rechargeable battery packs as well as a USB charging cable that can charge both battery packs simultaneously. The 3 meter length cable ensures you have full flexibility in where you charge. The battery packs can also be charged whilst placed in the controller allowing you to continue playing whilst power is restored.