As the name states, a simple stackable battery holder. Right now it's just AA batteries but I'll scale and upload others if people want them. The top (and bottom) has a little beveled edge to make it easier to place batteries and trays.

The things I design I try to make use as little plastic as possible and I think this does a fair job of it.

I made this because at work I'm always left with a hundred barely used AA batteries from my students robots and I got sick of the random piles and cardboard boxes.

Just print at your desired quantity. The top and bottom are mirrored so you can't stack them wrong :-)

I printed mine at .30mm layer height, 0% fill, 1 shell. All of my prototypes were .37mm so you can probably do that just as well. A finer print layer would just make the bevel print better but it should work fine either way.