This Hand-Cranked Backup Battery Always Has a Source Of Power: You

Eton has made a name for itself with a line of emergency devices—like flashlights and radios—that don't require an outlet to stay powered. And its new BoostTurbine backup batteries promise to keep your other devices perpetually powered too, as long as you've got the energy to crank its built-in folding handle. » 10/23/12 2:38pm 10/23/12 2:38pm