Well, they are working on putting them to use as batteries with nano technology (carbon nanotubes increase surface area to the point where they have the same power for size as batteries). The advantages are near instantaneous recharge and incredible lifetimes. I'm no EE, but I thought that it completely depends on how they are built to discharge, but I've been warned before not to touch capacitors unless I wanted to have my heart 30 feet out of my chest. <img src="/images/graemlins/smile.gif" alt="" />