Tesla site shows >> The most important way to preserve the high voltage Battery is to LEAVE YOUR VEHICLE PLUGGED IN when you are not using it.
I have time of day electrical rates, so I set the schedule to start charging at 8pm daily. I don't drive much, especially on weekdays, but I leave it plugged in 24/7 unless I need to drive it. I noticed that even if I don't drive, the battery % will drop 1 and sometimes 2 % by 8 pm the next day. Then it would be charged up to my set maximum in minutes. My question is shouldn't the battery maintain its charge since the car is plugged in? I read the car would use wall power (instead of batter power) when plugged in so I am wondering why it would lose some charge.
I have time of day electrical rates, so I set the schedule to start charging at 8pm daily. I don't drive much, especially on weekdays, but I leave it plugged in 24/7 unless I need to drive it. I noticed that even if I don't drive, the battery % will drop 1 and sometimes 2 % by 8 pm the next day. Then it would be charged up to my set maximum in minutes. My question is shouldn't the battery maintain its charge since the car is plugged in? I read the car would use wall power (instead of batter power) when plugged in so I am wondering why it would lose some charge.