I'm no expert, and i have not given it half the thought you seem to have, but i've watched the progress made on things like laptops and phones. The phone i'm using now, if i make no calls, the battery lasts for 3 days + My first phone, on standby, lasted for 4 hours. My Laptop, it has a 4 hour range. Before, it was said there would never be a battery made to power a computer. Batteries are at the stage of development now, where they contain a small charging device, that actually CHARGES the battery using radio waves. As these waves pass the charger, they create a positive and negative effect on a certain part, creating movement. They are attempting to use this small movement to create an alternating current which in turn will charge the battery. I believe they already have a working prototype based on Bluetooth technology, but has to be within a very short distance at the moment, and does not charge well enough, or last long enough at the moment to be effective. My point is, the technology is on its way, and i believe it will be here in my lifetime.