Couple days late, but I just remembered this post and dug it back up to make a suggestion if you (or anyone else) decide to remix it with the charging slot, to help retain the model’s excellent printability.

Cutting a squared notch will create a steep overhang that will be difficult to print. But, if you instead cut a large circular hole through the bottom center, it will create a shallow taper that will be easier to accomplish, it will also cut down on filament usage 😃