Protect your charge port with a diode. These things get hot! To prevent melting the rest of the components in your controller box, wrap your diode in thermal pad and press it onto your heatsink with a diode holder.

Fits up to 4 100V5A Schottky diode. Fits stock XR controller box (top right stud), or DIY builds (bring your own stud).

Recommended to print in PETG, but PLA should probably also be fine.

https://www.amazon.com/SQXBK-Silicone-Schottky-Barrier-Rectifier/dp/B09Y1YD17L/ref=sr_1_4?crid=3TP4FJIJZT0NC&keywords=100v5a+diode&qid=1703644375&s=industrial&sprefix=100v5a+diod%2Cindustrial%2C70&sr=1-4