I charge my SR+ to 80% daily (have a 150km commute, so i go from 35-40% to 80%). The range in kms has slowly fallen. Today it shows 299kms of range. That means at 100% battery will be at 358.8kms.
The car is only 1 month old.
Has it really lost so much range?
Most of the drive is on 401 at autopilot set at 110. My avg energy while going is 120kw h and returning is 100kw h.Advertized 100% charge range is 386km. @80% that's 309km.
Depending on how you drive that 10km difference is not that significant. It's about 2.5% of the overall expected range.
If you are driving on the 40x highways at over 115 km/h that would totally account for it. As someone who drives on the 401, QEW etc. I rarely drive anywhere close to 100 km/h.
Have a look at your energy graph of the last 50km. That should give you some indication of how uniform and efficient you're managing to be.
The same would happen in an ICE, it would just not be as clearly documented.
Enjoy the car!
I actually had same doubt two years ago, asked SC, research on Internet, but no one has a solid answer to it because Tesla do not provide a way to check health of battery for customer, which I think they should...Isnt that what degradarion is (less km at the same levwl)? If i dont stop anywhere my battery is ar 42%. Just that when i charge it back to 80% the range shows 299 instead of 310
Its down to 297 now and the car tuned 1 month old today.