As I have predicted several times in threads like this, the future of long distance electrics lies in "filling stations" where the battery is replaced by robots. It would resemble oil change places. You'd pull in and park over the robot, which would remove the battery from under your vehicle and replace it with a fully-charged one. You'd be billed for the difference in charge state ( a "half tank" of juice versus an empty, etc) and you'd be gone in a few minutes. To facilitate this, there'd be only two or three standardized battery sizes, and vehicles would be designed to facilitate the process. The exchanged ones would be charged at the station and stored for their next use.
You'd only plug in when at home or in town.
