2/3AA to AA Battery loading adapter

thingiverse

I decided to swap out the batteries in my solar lights and discovered they used 2/3AA-batteries, which meant my standard battery loader wasn't a match for this size. To solve the problem, I came up with a simple adapter solution. In addition to the printed part, you'll need some cable and veroboard to complete the project. Unfortunately, I didn't plan it out well enough, so assembly can be a bit of a challenge. Since I only needed it once, though, it wasn't a major issue. The photos show my initial version, but after testing it out, I had some ideas for how to improve it. The final version is now available as an STL file.