Thank you for this!

I made mine using PETG because I live in the southern US and it gets VERY hot in the summers. The picture shows just 1 that I printed, because I'm printing the other right now ;)

My charger is slightly different than the one you have in the pictures; it has an extra bulge on either end (see pics). The model I got was from Amazon, brand is "Defabee". Link here: https://www.amazon.com/dp/B0CZ6YJ27T

Anyway, here were my settings:
- PETG (from Creality; cheap-- about $14)
- Used a raft for better adhesion
- Infill: 10% cubic (I wanted it to be slightly flexible to fit around the bulges on the charger.
- Supports enabled, but they only printed where the screw holes were.

Good fit, and feels very sturdy!