This is a minimalistic coin cell holder.
It can hold the following batteries (each has 3 slots):
1st row (left), top to bottom:
2nd row (middle):
3rd row (right):
I may add slots for CR2450. Also, I have noticed that the measurements I found online did not always create a good fit - I will adjust the size of the slots soon.
CoinCellHolder4.stl | 31.9KB |