#N/A, Platforms: Xbox 360

High-performance NiMH battery cell / Up to 25 hours of play per full battery charge / Battery fuel gauge / Charger required ( sold separately )

Do you have multiple Xbox 360 Wireless Controllers and only one Play and Charge Kit? No problem. With the new black Rechargeable Battery Packs, you can juice up additional wireless controllers with the Play and Charge Kit you already own. Match the style of Xbox 360 Elite with the black Rechargeable Battery Pack. Features: Up to 25 hours of play per full battery charge High-performance NiMH rechargeable battery cell Batteryfuel gauge through the Xbox 360 dashboard Charger required (sold separately)

Microsoft Rechargeable Battery Pack for Xbox 360 - Blue Microsoft

Keep your wireless controller going through those marathon gaming sessions with this rechargeable battery pack. Compatible with your existing Play and Charge kit, it's ready to help you reach new levels of wireless freedom. From Microsoft.