> The other day I drove 700km in just about 5.5 hours (German Autobahn). Few stops to pee. With EV that would be few hours more (!)
If you got an EV with fast charging (and there were fast chargers on your route) it would actually be under 20 minutes more.
For example Ioniq 5 has a range of ~480 km. Let's say you started at 100% and drive down to 10%. That gets you 430 km, so 270 km left to go.
At a 350 kW charger the Ioniq 5 goes from 10-80% in 18 minutes. Assuming you do not want to take it below 10% that's 340 km before you next need to charge, more than the 270 km you need to reach your destination. You arrive with 70 km left before needing to charge again.
Let's do the round trip extra time. That's 1400 km for the trip. Again assuming we start at 100% and we don't let it go between 10%, then we get 430 km using before the first charging stop.
At that point we've got 970 km left that will have to be powered by our charging stops. Every 20 minute stop is giving us 340 km, so we'll need 3 stops, or one hour of stop time.
You might also need a stop, most likely shorter, at your destination if you are going to do a lot of driving there before returning home.
In a majority of cases with EVs charging speed is a bigger factor in how much time you spend stopped than range. Many people overlook this and might be a longer range EV when they would actually have faster trips if they got one with a much higher charge rate even if it had a substantially lower range.
The way to think of it is once you get past the range you got from charging before you left, every km travelled on the trip comes from stops during the trip. If EV X charges twice as fast as EV Y and they both need a stop at the same place, Y is going to spend twice as much time on chargers for the rest the trip as X no matter how many times they have to stop. If the fast charging X has half the range it will stop twice as often, but an X stop will be 1/4 the time of a Y stop actually charging.
Y making few stops does mean less time spent on stop overhead, by which I mean the time when you are off the highway but not actually charging. That should only be a couple minutes or so per stop though since you can overlap time consuming stop activies like visiting the bathroom with the actual charging.
On most trip that saving from less total stop overhead can't come anywhere near the savings from faster charging and so fast charging meh range will usually beat crap charging but great range unless the trip is short enough that only the short range car needs to stop. The great range car also does got farther before needing the first stop, so it doesn't need to add as much mileage during the trip put that too usually doesn't make much difference either other than fairly short road trips.