Nyko Power Pak 360 for Xbox 360 High quality NiMH rechargeable battery for excellent performance and long life Compatible with Microsoft's wireless controller for Xbox 360 , Play and Charge Kit and Quick Charge Kit . Also compatible with the Nyko Charge Station , Charge Base 360 , and Power Kit CE approved for safety and quality assurance Eliminates the need for expensive batteries Up to 25 hours of play per charge High quality NiMH rechargeable battery for excellent performance and long life Battery gauge accessible through the Xbox Dashboard Eliminates the need for expensive batteries Up to 25 hours of play per charge CE approved for safety and quality assurance