Summary

Adaptation of a power bank PCB from Aliexpress with all major qc protocols and cell balancing.

Holes are almost necessary. Heat output is around 10w in the worst case scenario.

PETG or ABS/PC recommended. PCB reaches up to 70°C.

Screws are M3x10.
Doesn't use threaded inserts, since it's a one-time assembly.

Printing recommendations:
In this case I used supports for all the internal surfaces, printing on the bottom side.

Just search "100w pd power bank module" on AliExpress. There are dozens of them.

Step file attached. Stl's are lame.

Feel free to comment. Any criticism is welcome. And if you need something like this made or rendered for you, find me on Upwork