I always have mine set to charge to 90% unless I’m about to go on a big road trip. It’s extremely easy to do on the app.

If you go on a long road trip and use the car’s map function, it routes you to all the super chargers you need along the way. Before you get there, you see a prompt that the car is “preparing the battery for fast charging” so I’m not exactly sure what all that entails, but I’m guessing it’s a good thing for the battery’s longevity.