How to replace XBox 360 Wireless Controller Batteries -Both Types - YouTube
who else does this? I don't have a battery pack : r/xbox360
Amazon.com: Battery Pack Cover for Xbox 360, Replacement Battery Pack Cover Shell Repair Part Compatible with Xbox 360 Wireless Controller(4 Pack, Black, White) : Video Games
Amazon.com: ActZone 4pcs 3600mAh Rechargeable Batteries Pack for Xbox 360 Controller, Dual Charging Station Dock with 4 Pack Rechargeable Batteries kit for Xbox-360 Game Controller : Video Games