It's massive, costs $500,000, and is just a prototype; but you're looking at a possible solution for swapping out heavy car batteries from future electric vehicles. Kind of important if you're hoping to take your EV on a trip a bit further than the supermarket or city center without having to stop for a lengthy recharge. This switch station, unveiled in Japan by Better Place, can swap out a spent battery in less time than it takes to refuel the tank in that baby-killer of a car you hold so precious. These battery swap stations are just part of the enormous infrastructure required to support Better Place's subscription approach to electric vehicles -- infrastructure easily estimated to cost $250 million or so for countries like Israel or Denmark on up to the $1 Billion already pledged by San Francisco Bay Area mayors. Better Place admits that the swap technology is a work in progress but hopes to have 150,000 charging stations and about 100 battery swap stations deployed in Israel by 2011. Check the video after the break.