5 mins is like 50 gallons of gas, which is a very, very large gas tank. That's like larger than a Ford F-350 gas tank.
My car's gas tank fills in like one minute, if I run it fairly close to empty (which is rare)
In any case, it's a redundant point because it's unlikely a battery fluid system would be designed in the same way as old fashioned gas pumps. More likely, it would clamp on and you can sit in the car or take a small walk while it does it's work. Gas pumps are designed to be handheld because they are fast. If it took 5 minutes to pump gas, we would probably have redesigned these by now too.
Assuming we’re just talking about driving around for errands and not things you use a truck for, this would still be impressive.
Family and I used it for moving across state, and with no load (or very light load, no trailer) and a full tank it could make a 700 mile journey in one go with fuel to spare. That included going up a couple mountain passes.
Fully loaded (20ft enclosed trailer and truck bed), it still made about 500 miles of the way before we needed to refuel.
Worth noting, we found the mileage wasn't actually affected in any significant way by any cargo we hauled. It was pulling that trailer, regardless empty or loaded, that reduced mileage (aerodynamic drag!).
Street driving is less efficient than freeway driving, obviously, but with a ~40 gallon fuel tank it should still make stopping at the pump a very infrequent event.
Pull up, insert card, insert filling handle, start, lock on, step to the side to avoid fumes, when it clicks off you put up handle, put gas cap on, drive away.
Electric cars have a lot of pluses, but refilling the tank as quickly as gasoline or diesel isn't one of them. I can drive at highway speeds for over thirteen hours on two refills of the tank, each of which takes less time than walking in and using the restroom.