Nyko Power Kit - Rechargeable Battery with Charge Cable for Xbox 360

Play and recharge your Xbox 360 wireless controller's battery pack simultaneously. The Power Kit includes a high quality NiMH rechargeable battery and an extra long USB charging cable. The battery provides up to 20 hours of play per charge, while the extra long cable allows simultaneous play and charging up to 8 feet away from the console. The extended cord makes it easy to kick back at a comfortable distance from your TV without accidentally disconnecting the controller. Never worry about running out of battery power for your controller during play again.