REPLACEMENT: Rechargeable battery pack, 1200mAh certified rechargeable lithium battery for X box One, for X box series X S. FAST CHARGE: Controller battery fully charges in just 2.5 hours, providing 10 to 15 hours of playback time. You don't have to keep replacing battery. WIDE COMPATIBILITY: This battery is compatible with for X box One, for X box Series X S, for X box One S One X One Elite wireless controllers. MULTI PROTECTION: Built in over voltage, short circuit and over current protection system to avoid overheating and overcharging. Ensures safe charging at night. PROFESSIONAL: Game controller battery pack provides stable and safe charging that lasts up to more than 1000 rechargeable cycles. Install and use, convenient.