A process to replace a spent battery with a fully charged one to bypass charging time for electric vehicles. The Tesla electric cars are designed to allow fast battery swapping within 90 seconds. All Tesla stations support batter swapping in addition to provide supercharging for Telsa sedan owners. Each swapping station stocks 50 batteries for customers without requiring reservations. The service is offered for the price of about 15 US gallons of gasoline at the time. Owners can pick up their battery pack fully charged on the return trip, which is included in the swap fee. Tesla also offers the option to keep the pack received on the swap and paying the price difference if the battery received is newer, or to receive the original pack back from Tesla for a transport fee.