Xbox 360 controller 18650 lithium battery case

This is a xbox 360 wireless controller battery case for 18650 lithium battery. After printing use two 1.5cm pieces of nickel strip as contacts between case and controller. Solder 2 wires to the battery and the other ends to the nickel strips. The battery is charged using a TP4056 charger module. Glue the two halves of the case together with superglue.

P.S. On older models of the controller the green LED ring remains dimmed lit after the console is powered off so you need to remove the battery afterwards. Also the vibration is not working on these older models.