AAAA batteries are one of those things that don't require the SHTF to make them hard to find. The little 1.5v batteries are not in common use, but if you are a flashlight nut like me, you probably have some tiny light that uses them as a power source. In my case it's the Streamlight Stylus. I have completely worn the finish off more than one and lost more than I care to remember. So out of desperation one day, I tore open a standard 9v battery and found it contained six 1.5v batteries that were the same diameter and voltage as the AAAA batteries I needed. They lack the commercial end cap on the positive (+) end, so this end is just flat. This makes them just a tad shorted, but it has been easy enough to stretch my flashlights springs slightly to make up this distance. Since a picture is often worth a thousand words, here are three.