AAA to AA Battery Adapter | Battery Holder

Need to power an AA device but only have AAA batteries on hand? This 3D printable adapter is a quick and convenient solution! Designed to snugly hold a AAA battery and size it up to AA dimensions, it uses 6mm x 2mm neodymium magnets (purchased through amazon or through the makers marketplace) as electrical contacts for reliable conductivity. The magnets attach directly to the AAA battery ensuring good connection despite batteries being very slightly different lengths. The batteries should be able to freely move in/out of the cover holes.

the two halfs click together with a snap-fit. 

See below: