I kinda doubt the genuineness of the question given the comment about telemetry... I'll be the first to admit that these things are a privacy nightmare, but that's a problem with ALL modern cars, not just EVs. It just so happens that most EVs are modern cars, but they're not necessarily worse than your random off-the-shelf 2026 Nissan Rogue.

Still, genuine answer: Haven't done that many roadtrips where I've needed to charge more than once, actually. But my car can easily leave now and go 2-3 hours at highway speed without stopping. Make that 3-4 hours if I set it to charge at 100% the night before (in case of a planned roadtrip), as I usually only charge it to 80% to preserve battery life. Not sure how many miles that is as I'm to lazy to do the conversion, but this is why I use "hours at highway speed" as a metric.

A good resource to look at the various scenarios specific to your situation / area would be ABRP.