I’m a new Model Y owner. I’ve been reading these forums but still have questions. I set the charge limit to 90%. When fully “charged”, the car is around 290 miles range. I leave the car plugged in (via my JuiceBox 40 pro). I can see through the Tesla App that range I’ll drop down a few miles throughout the day, for example to 285 or so miles. Question is, why doesn’t the car keep charging itself to maintain the 290 or 90%? It’s always plugged in, so I assumed it would always top itself off, like a phone battery. Am I doing something wrong?