Haha, I like that description a lot. You can even make small batteries out of little more than aluminum, an electrolyte like salt, and (I think) a way to bring

Haha, I like that description a lot. You can even make small batteries out of little more than aluminum, an electrolyte like salt, and (I think) a way to bring oxygen to the cathode like activated charcol: https://en.wikipedia.org/wiki/Aluminium%E2%80%93air_battery https://en.wikipedia.org/wiki/Aluminium%E2%80%93air_battery