"The only thing I've ever come up with is a hot-swappable battery, so they sit and charge at a station until needed, then you swap a new one into the car." htt

"The only thing I've ever come up with is a hot-swappable battery, so they sit and charge at a station until needed, then you swap a new one into the car." http://www.betterplace.com/ http://www.betterplace.com/