Make Your Own Rechargeable, Water-Powered Battery

We've covered how to make a beer battery before, but if you've yet to get into the home brewing scene, you can make a smaller battery with a carbon rod and a bit of water or vinegar. Besides the rod and your liquid of choice, you'll also need a bit of aluminum foil, some wire, and a small cylindrical container in which to hold it all. As far as tools go, you'll just need some basics: scissors, pli