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
Xbox 360 Controller Battery Pack Fix - ( Play and charge ) - YouTube
Xbox 360 rechargeable battery pack fix - YouTube
Microsoft Xbox 360 S Wireless Controller Fix Battery Pack Corroded Corrosion Easy Quick Repair Save - YouTube
I just dug up my old Xbox 360 and found it to somehow work, only problem I had was that the controllers battery compartment looks like this and the controller doesn't turn
Xbox 360 Controller Battery Pack Quick Fix (including play and charge kit) - YouTube
batteries - Why does the X-box 360 controller battery pack have an integrated breaker contact? - Electrical Engineering Stack Exchange
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
How To Use Xbox 360 Controller Without a Battery Pack ( Play and Charge Kit ) - YouTube
Is it safe to use the Xbox controller while plugged in with 2 AA non-rechargeable batteries inside? - Quora
How to Fix an Xbox360 Controller That Doesn't Turn On - Battery Pack Quick Fix - YouTube