Xbox 360 Play & Charge Kit Recharge while you play Don't miss a thing! Recharge while you play or when your Xbox 360 is in standby mode. Know your battery levelYou'll always know your battery levethe battery fuel gauge is shown on the Xbox 360 dashboard. 25 hours of gameplay per chargeGo at it all night long. The rechargeable battery pack provides over 25 hours of gameplay per charge. Battery pack needs to be left plugged in to the unit and not used for 5 to 6 hours when the Play &amp; Charge Kit is used for the first time. The Battery Pack will continue to build up the lifespan the more the pack is charged.