This is a simple 16-cell AA battery holder, created with TinkerCAD (search for “AA-Battery-Holder-16-Upright”). I needed something to organize my rechargeable NiMH batteries while topping them off in the recharger 8 cells at a time. It's probably not too strong so don't stress or twist it too much, but it does seem to have good structural integrity.
I printed at 0.2mm, 20% fill, no brim or supports required. 0.3 draft mode probably would be fine as well, and shaves an hour off the print time.
The author marked this model as their own original creation.