Nontoxic Batteries

Yes, they exist. I just sort of assumed that batteries were batteries, i.e. the whole concept of a battery is the rare creation of electricity out of certain materials and, traditionally, those materials happened to be toxic (lead and acid). But it turns out that other materials that aren’t toxic can also produce electricity. Potatoes, for example. But I wouldn’t try to power your alarm clock with a potato. A better idea is the new purportedly green concept of phosphate and lithium in a battery. They’re rechargeable too. http://news.thomasnet.com/fullstory/Non-Toxic-Rechargeable-Battery-can-replace-lead-acid-batteries-20018952