I had a 2019 X with 26k miles and it was getting 324 miles range. And it didn’t drop 1 mile in the last year.
Charging to 90% daily I don’t think is healthy. Unless you need it or always use it. Sitting at 90% days on end isn’t good.
That said, charging to 100% occasionally and using it right away I think is good for the battery. Maybe 2-4 times a year. It also helps recalibrate.
Tesla will tell you to run it down to below 20%. Leave it there for a few hours and then charge to 100%. And drive it back down to 80%. I’ve never had to do that.
Occasional supercharge I think helps too.
