How To Use Xbox 360 Controller Without a Battery Pack ( Play and Charge Kit ) - YouTube
Xbox 360 Controller No Battery Pack Fix - Use Your Controller Without a Battery Pack - YouTube
I founs out today if you lost the back part of your Xbox 360 controller, you can just stick two pennies on top of the batteries. I tried it a few hours
For Xbox 360 Wireless Controller AA Battery Pack Back Case Cover Holder Shell ++ | eBay