I have a 2020 model 3 (but bought in 2019). I only charge it to 80% now. But it feels like I can barely go anywhere without the battery going down significantly. I have about 90k miles on the car. I saw that the warranty is until 100k miles or 8 years. How to check battery degradation please and has anyone been successful using that warranty ?

I’ve heard it’s not ideal to use express car wash for Tesla due to the weak paint. How is everyone washing theirs?

https://youtu.be/OZ5SXmArEIo

I have never used it, but saw their ads on Instagram a lot. And their promotion video is Model Y. Recently they also claim they have a partnership with Tesla owners in Silicon Valley. So I'm interested to see if anyone actually used it and how they like it. Thanks.

https://getrubbit.com/

I'm expecting to start looking for a used Model S next week. Is there any way of checking the battery health when doing an initial viewing, even just a basic starting point, other than just looking at range and charge as a rough idea? I have a Bluetooth code reader if that helps.

Or is it have a look and get Cleverly or someone else to come out to run a test?