AA Battery Insert

This print will fit a vertically stacking AA battery set-up as the top-most battery as shown in the drawings provided. Since the bottom reaches down to cup the battery below for a better fit, it makes it a bit longer than a standard AA. I'm sure this would also fit AAA batteries if it's re-scaled properly.

This could be used to lower the voltage of, say, a flashlight (or more likely, for a personal massager that is a bit too intense).

I'll upload make pictures and let you know how it wor