Simple battery holder for 10 9v, 16 AA, 12 AA, and 6 CR20 batteries. If there is any interest in a different configuration, let me know and I'll see what I can do.
I used Amazon basics AA, AAA, and 9V as well as a standard CR2032 as a reference for the slots. I also added 1mm of space for each battery type to be on the safe side and it turned out great in my opinion. All batteries fit with a little bit of wiggle room. The CR20 slots have a bit more space on my print than I was expecting, but nothing too crazy. I did not upload an image of my print as what I printed was more of a prototype, but the dimension of the battery slots did not change, so I am 100% confident that this will fit your batteries with no issues.
PLA with a 0.2mm layer height, 4 walls, and 20% infill worked well.
The author marked this model as their own original creation.