steve dickens Posted 10 months ago Donald Sadoway: The missing link to renewable energy You know I mentioned a water battery I designed some years ago on teds site and got very little attention. Even tho the battery I designed worked and supplied power for years and its electrolyte was only plain water. But I guess it did not need enough maintenance to be worthy of making money. Seems for a battery to be worthy it must not last long and contain toxic chemicals. Go figure.