I live in Savannah, GA. Currently under mandatory evac.
I drove around 50 miles yesterday prepping for evac, and everything was fine.
Woke up this morning to a significant drop in estimated range. With my SR+, April 2019 delivery, just over 6000 miles, I have been averaging 209-211 miles range at 90% charge. I charge to 90% nightly, in my garage.
Over the past couple months I have seen a gradual drop in estimated range from 216mi @ 90%SOC down to around 21pm @ 90%.
This morning my estimated range was 188 miles. At 90%.
By extrapolating, I calculate the 100% SOC range estimate has dropped from 234 to 209. That is a drop of 31 miles since taking delivery.
That would be a 13% loss of range for 6000 miles over four and a half months. Am I right?
Hounded down a service advisor throughout TeslaChat. OTA diagnostics revealed nothing. Said to check in with my Service Center after the hurricane. (My SC is in Jacksonville. Also under mandatory evac)
I know range estimates are just that. Estimates.
But at what point should I worry I have a bum battery?