You helped me make a very nice Christmas gift for my whole family! I got everyone in my family one of these batteries, and made a bit of a remix of this.

I had really just intended to reinforce the battery slot so that I could print them in PLA, but I got carried away and added AC adapters, additional wireless chargers for a pair of headphones, a slight bit of cable management, and re-routed the cable channels under the bottom with a hole that comes out right by the USB ports.

I also made an insert for this to work with the Apple Magsafe battery (which has unfortunately also recently been discontinued)

I've been meaning to post it as a remix, but I don't know how useful it might be to others since it's friction-fit to the specific AC adapter and charge pad I used, and it looks like the 633 wireless battery is now being replaced with a very similar one that has an LCD on the side and the kickstand in a different place. Anyway, thanks so much for the design! (edited)