<link deleted> It details the discovery of a 2300 year old battery found in Iraq. basically it is a pot with some wiring and a copper rod in the middle add some grape wine and you have have a battery capable of generating 0.8 volts. so here is my question: if this would be cheap to maintain once you have the battery constructed. why cant this be done on a massive scale? thousands of pots generating 0.8 volts of energy continously.