Stay charged, play longer. The GameStop's Play & Charge battery kit for Xbox features two 1200mAh rechargable battery packs for all day, non-stop gaming. Each battery pack provides up to 30 hours of gaming with a full charge! The USB-C port allows you to play while charging, and is charged to 100% within 4 hours. The battery pack and battery covers are compatible with GameStop's controller sleeves, and allows for direct charging with the Dual Charging Dock.