Tesla Motors Club

Over the last few months, I had been one of those that saw a large decline in reported battery health/degradation. I had even contacted Tesla where they said they looked at my battery remotely and saw no issues, but also said they have a known bug in how the car calculates range. My car is a supercommuter car, so it uses between 50-60% of its battery every workday and at the low point it was reporting its 100% range at around 295 (with a spike to 290) as recently as 10/6.

As the below chart shows, since I got v10 on 9/29, the reported range has been heading back to about where I was expecting it since I got v10.