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 Shell
3 Ways to Fix an Xbox 360 Wireless Controller That Keeps Shutting Off
Xbox 360 Rechargeable Battery Pack Tear Down : 3 Steps - Instructables
How to Fix an Xbox360 Controller That Doesn't Turn On - Battery Pack Quick Fix - 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
3 Ways to Fix an Xbox 360 Wireless Controller That Keeps Shutting Off
2-Pack Rechargeable 3600mAh Battery Pack for Xbox 360 Wireless Remote Controller - Black by Insten - Walmart.com
Xbox 360 Wireless Controller Right Analog Stick Replacement - iFixit Repair Guide
Xbox 360 Controller No Battery Pack Fix - Use Your Controller Without a Battery Pack - YouTube
Can We Fix This Xbox 360 Controller That Won't Turn On? - YouTube
Xbox 360 Rechargeable Battery Pack (Styles May Vary) | GameStop
How to Make a Spare Controller Battery Pack for Xbox 360 : 9 Steps - Instructables
Xbox 360 Wireless Controller Battery Replacement - iFixit Repair Guide
Xbox 360 rechargeable battery pack fix - YouTube
What's Inside The Xbox 360 Rechargeable Battery Pack? - YouTube
Wireless 3600 mAh Rechargeable Remote Controller Battery Pack for Xbox 360 Black 887954502770 | eBay
Li-po and Li-Ion battery for the Xbox 360 controller. – S-Config