Battery Holder & Sorter (AA - AAA)

UPDATE: I made a completely overhauled, updated design that fixes most of the flaws! Find it here!

This battery holder fits a large number of batteries and allows you to automatically sort AA and AAA batteries. For me this was key, since my drawers always contain a whole mess of random batteries. Well, no more! I chose to sort the batteries based on length, which after some testing proved to be the most reliable. The tolerances are quite tight, but it should fit your common AA and AAA batteries.

The pegs and holes should snugly align, which means that you won't need any screws to keep the two halves together! 

I created this model from scratch, but I took some inspiration for the overall zig-zag design from the models by 3DP and Me and freakyDude.