AA Battery Holder

I wanted a battery holder for 20 plus AA batteries that don't jam so I designed this. I seems to work well although the battery can sometimes fall sideways when loading but I like it so far. I will also make a AAA version soon once Ive used this one and see if I spot any issues first.
I also didnt want it to have any supports to save on wasted material and mainly so i didn't need to pull off any supports.
I printed it on a K1 Max, 2mm layer height, I used a 30% infill but that isn't needed 15% would be fine and no supports.