Xbox 360 Controller Li-ion battery conversion
thingiverse
<h1>Warning! Make changes to your controller at your own risk. I am not responsible for any damage.</h1> Description for those who are 100% sure what they are doing: You will need a TP4056 Li ion charging board with discharge protection. Two ICR14500 Li ion cells. Any 1n400x diode. Some nickel strip 6mm wide. ss12d00g4 (4mm) toggle switch. Self-tapping screw. Diode is needed to slightly drop the output voltage. Fully charged Li ion cell voltage is 4.25v and the diode voltage drop is about 0.7v. So the final voltage will be around 3.55v that is pretty close to two new alkaline cells 1.65v * 2 = 3.3v. I used my controller without diode some time and it could handle 4.25v without any issues, but for additional safety I decided to add it. Working time of controller was significantly increased with this mod compare to the NiCd batteries that I used before. Moreover I can just plug the charging cable in any moment and continue to use controller.
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