A Model S with the smallest battery pack will charge its battery pack in 5 hours using a (kind of) common 240-volt household outlet. If you are looking for a quick jaunt, a 240-volt socket will deliver 31 miles of range per one hour of charging time. The company is also working on "supercharger" stations that can power the car up to 150 miles in a single 30-minute charge. Not too shabby.