Redesign so you have a dozen batteries, but smaller, and load them like rifle rounds. You can stop at a station to 'fill up'.

An attendant comes up to your car, offloads batteries, goes and exchanges them for good batteries. Then comes back and loads up the good ones. Car shuffles them as needed, you pay your bill, and off you go.

You could even automate the process with self driving cars. They pick a nearby station, go to it, lines you up with the service gantry.

An automated process goes through the whole thing. You get an option to get out of your car to go to the store (with ads) while the process is going on.