Battery Case 2 - AA and AAA

thingiverse

A robust battery case with a lid. Comes with a AA version and a AAA version. Holds 32 batteries. Has optional cap pieces so you can color-code each half of the box for charged and discharged batteries. The retaining ridge keeps the lid on tight, so it's good for traveling. Note: If you use the colored caps, I recommend sanding the top of the box and the bottom of the caps to get a flatter surface. I used super glue to bond them together. Also, the two cap pieces need their "teeth" to mesh together pretty well in the center of the box, so I filed down the points of contact with a fine-toothed file with about 10 strokes on each surface (both pieces). If the colored caps end up leaving an overhang around the edge of the box at any point, it will make it hard to take the lid off. Go forth and glue carefully, my friends.