Remove the need to constantly change your controller batteries with expensive disposables. Our handy rechargeable battery packs are made to measure to fit your Xbox One Series X Controller and offer up to 15 hours of gameplay off one full charge. 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 metre 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. Includes two rechargeable battery packs designed specifically for new Xbox Series X controller. Powerful 850mAh capacity offers fast efficient charging and up to 15 hours of gameplay off one full charge per battery. Comes complete with 3 metre charging cable with dual output connection allowing both battery packs to be charge simultaneously. Play and charge design allows battery packs to be charged in the controller whilst you continue to play.