Gridfinity 2x1x3u Battery Holder 9V Block & AAA

Once all my other batteries where sorted, what to do with the clunky 9v blocks? and on top, for my few remotes, i do need some spare AAA batteries stored.

Lets use the free space of a 4x 9v Block Gridfinity box and store some additional AAA batteries for high density efficient storage.

This box holds up to four 9V blocks and up to five AAA batteries.

Due to being one of my early Gridfinity designs I did not start out modular and hence this design does not have the upper lip to make it stackable, which it either way isn't when loaded with batteries.