Gears: You are correct, but I think his actual point is about the rate at which an "empty" car can be "filled" with energy.  To date, no electrical charging station can do this at anywhere near the speed of filling a tank with gasoline.  This does not matter in most cases, such as where the car is used for short trips in an urban environment.  Once one starts a long haul trips across the country, it becomes a concern.  No one wants to wait for an hour or two while their car re-charges.