I have a level2 charger in my garage from my last EV (Chevy Volt) It charges my MS at about 4kw - pretty darned slow, but I really have no complaints.. I charge to the typical 90% and the car may sit that way (plugged in) for a few days. When I need the car, it almost always will incur a hundred mile drive, round-trip - I live in the middle of nowhere.. So when I know that I'll need the car, I'll bump the charge level to 100% and let it top off. I don't let it sit that way! As soon as my phone dings, I'll take the car on the trip. When I return, I usually have about 150 miles left.. ~60% Then it charges back to 90% and the cycle repeats. About once a month I'll go to my nearest SC at the mall and let the car suck all the electrons it can just so it can charge rapidly, instead of slowly at 4kw I've been doing this for about a year, with my 2017 MS. I've noticed no degradation at all. What say you?