A simple, compact 16x AA battery box with a tightly fitted lid.
The provided "AA Battery Box MMM.3mf" file is a project for single extruder Prusa that uses two manual filament changes to print letters on the lid in a different color.
Alternatively, you can use the "AA Battery Box.3mf" if you want to use just a single color, even though the MMM version is quite cool, nice, and equally easy to print.
See also https://www.printables.com/model/301928-aaa-battery-box-16x for AAA battery version.
The author marked this model as their own original creation.