Batteries are like crack. You just can’t live without them! However, some very industrious (and possibly crazy) folks have destroyed a few batteries to bring us tips on how to save a ton of cash by hacking into, and re-purposing the guts of, 6 and 9 volt batteries.
For example, inside one of those giant 6 volt lantern batteries actually reside 32 standard AA batteries! And here is how you get them out:
And if you crack open a 9 volt battery, you’ll find 6 AAAA batteries inside. You can actually fit these where a AAA battery goes.