I'm looking for a device that charges the small lithium batteries in portable electronics from 18650 standard cells. I've searched high and low for such a thing, but never found one that does exactly that. There a AA-powered things that don't work very well, and large packs that cost $100+ and are intended for laptops and portable dvd players, but no simple thing that will charge a cell phone or iPod from an 18650.
This one comes close, but I don't get the impression the cells are removable - a fatal law for a flashaholic.
So has anybody found anything better? If not, can somebody build this? I know I'm not the only one who would purchase such a device.