I have owned my Model 3 AWD for a bit over 5 months, and the battery seems to be performing to spec. This morning, I witnessed something I haven't seen before-- the remaining range went up overnight when I left the car unplugged.
So here's what has happened since yesterday morning:
1. I started the day with 250 miles in the tank.
2. Sent kids to schools and drove to work. Down to 185 miles.
3. I left work about 7 hours later. The battery had 178 when I started driving. I found that a bit weird, given that I didn't have Sentry on. Still, I have seen that kind of vampire drain before, so I just thought my car was doing what it needed to do.
4. When I got home, the battery showed 149 miles remaining. I left it unplugged because I planned to visit a SC soon.
5. This morning, when I drove to drop off the kids. The battery showed 154 miles remaining. That's an increase of 5 miles in range!
I wouldn't mind this type of leprechaun charging (if it's indeed happening). But I am concerned about the inaccuracy in my car's range reporting. Or worse, could it be a symptom of more severe issue with the battery? Have you guys experienced something like this, or do you have an explanation for this phenomenon? Please chime in.