3 ms·

I think the parent comment was talking more about battery swapping in lieu of charging to save time, not as a "once in a while" kind of thing. As far as I know,

• jsight 7y ago
  Not at all, it was demonstrated as taking 5 minutes on a production Model S. They also built one swap station. Some say it was all done for show and they never had any intention of following through. From the interviews with Musk at the time, I got the impression that it was more of a defensive move in case the concept started to gain traction. Either way, though, the vehicle was built for it and it literally took the same time as a gas fillup. I'm sure the demonstration videos are still on Youtube if you are interested.