November 18th, 2019:
On 10/27/2019, with only 4,163 miles on the odometer, my 2019 Tesla Model 3's (delivered 07/26/2019) estimated range at 100% charge dropped suddenly from 310 to 305, and my range at 90% charge dropped from 279 to 274. This does not seem like real battery degradation, but some kind of software glitch. I upgraded my software from 2019.32.11.1 d39e85a to 2019.32.12.2 58f3b76 on 10/15/2019, so the range dropped twelve days later -- apparently NOT caused by the software upgrade. I am now on software 2019.36.2.1 ea322ad (installed on 11/16/2019 with 5,009 miles on the odometer), and my battery has continued to degrade, and now its estimated range at 100% charge is 303 miles. This is concerning.
November 30th, 2019 (Update from original post on November 18th):
After driving an other 600 miles in 12 days, (Odometry: 5,607mi), my estimated 100% range fell drastically (again) to 295 miles. One factor that might help to explain this (at least partially) is that the temperature is continuing to get lower during the hours it is parked. The first drop occurred though with a mere 4 degree drop from 70f to 66.5f. The last drop (which was ten miles of 100% range loss) occurred in conjunction with the temperature dropping to 47.3f.Th
All in all, I have lost over 5% of my 100% estimated range in a mere four months. This is really concerning to me. Is there an explanation for it? Could I have a defective battery or charging system? If it is temperature related, will I see range recover when the weather warms up again?
Thank you for any information or suggestions you may have.