Aaaa Battery Hack!

You probably have some really cool, free aaaa batteries sitting around at your home, and may not even know it! What you need: 9 volt battery, Needle nose pliers, Wire clippers (maybe)

However you want to do this. Using, pliers and/or wire clippers.

Remove any other plastic/metal casing around the aaaa batteries.

There's these little metal strips holding the batteries together. Those come off, too!

You'll end up with about 6.

aaaa batteries are interchangeable with most aaa battery roles. They're also smaller, and lighter. (Note, not all 9 volt batteries contain these. I know for sure Energizer and Duracell do).