Had my Tesla Y for 2 months. Is not a daily driver. Set charge max at 76%. I leave it plugged in unless driving. I talk with a Tesla Service Tech who told me his cousin and uncle both purchased Model 3's. Cousin charges to 90% and only plugs in when battery gets down to 10%. Uncle charges to 80% and leaves it plugged in when not driving. After 4 years uncle had lost 25 miles of battery of battery power. Cousin has not lost any battery power miles. Service tech told me this is why you do not want to be charging your battery all the time. Tesla manual says to leave it plugged in when not driving. Service Tech said to ignore what the manual says. What should I do charging wise????