Most decent range electric cars (Teslas, Chevrolet Bolt, the new Leaf) have around 60kWh batteries. Residential "level 2" chargers can push around 6kW, and oft

Most decent range electric cars (Teslas, Chevrolet Bolt, the new Leaf) have around 60kWh batteries. Residential "level 2" chargers can push around 6kW, and often requires professional installation, and if you have an older home, requires the upgrading the service wiring to to the house. That would take roughly 10 hours to charge, giving around 25 miles of range per hour of charge. Great if you can recharge when you get home from work. Gas stations could have higher-grade power connections- "level 3" chargers typically pump out 50kW, and can charge a 60kW battery from flat to full in a little over hour. Typically you're not charging from flat, so you can "top off" in less time, getting something like 3-4 miles of range per minute of charging.