These are pee-powered batteries. Pee, like as in urine. Not conceptual. Actually available for purchase in Japan.



I don't understand how they work, like if you pee ON them, IN them, around them, if you soak them in a cup of pee, etc. I mean they're only available in AA or AAA so they must come with some type of funnel or something, because it's a small target. There are so many times I wish I could read Japanese lately. Does anyone's pee work? Does it matter what you ate or drank? Is there a color chart on the back that correlates to effectiveness, or does any old urine work? What about if it's not human urine?

How do they work? How, how, how? If pee can power batteries, what about cars? Do you mean to tell me we could be using sweet sweet urine to end our foreign oil dependency? Why are we researching ethanol instead of using pee? Why? How? Why? How? HOW DO THEY WORK?!?!?!?!

From Treehugger - where else?