For an EV with a range of 250 miles (400km) you can drive 400mi (645km) with one (1) thirty minute stop.
That's pretty much, drive 3 hours, stop for 30 minute lunch, drive 3 hours.
The confusion stems from the fact that gas cars don't fill up themselves before you depart, and they don't fill up themselves when you arrive. There are rather large differences between gas and electric cars, but people still treat EVs like gas cars, and demand EVs be more like gas cars.