AA/AAA Battery Holder with charge indicator
by Jinja, published
When travelling or when at home, place your batteries in the loops. The direction you put them in tracks whether they are charged or not, by referring to the charge indicator.
The STL names contain AA or AAA to refer to the battery size, and 2, 3 or 4 indicates the number of loops. I printed in ABS, if you try PLA, let me know whether the design has enough flex.