Useful info:
2015 Model S 70
177k miles
I bought used Jan 2020 with 147K miles
Battery warranty expires Dec 3 2023
About a month ago, with my battery warranty about to expire and the capacity in the vicinity of 70%, I decided that I needed to know as well as possible if I had a claim.
I read that to recalibrate, one should charge to 100%. I had never done that before, so I did charge to 100% at a supercharger. I was then going to drive it to about 5%, charge it up to about 95%, and see how many kwh it took. If it added less than 70*0.70*0.90 = 44.1 kwh, I was going to pursue exercising the warranty.
About a week later, I was down to 5% and hooked it up at the supercharger to get my data. But at 28%, it stopped charging and the "Maximum batter charge level reduced. Okay to drive. Schedule service soon." alert popped up. With my warranty expiration arriving soon, I scheduled the first available date and time - Friday 24 8am. Today (Wednesday, Nov 22) I was notified that my appointment has been pushed back to Jan 1, 2024.
If it turns out that the battery pack does have to be replaced, am I naive to hope that Tesla will honor that warranty if they don't get to see it until Jan 1? Also, is my method of estimating my capacity the way most people do it? Seeing how far it drives never made sense to me because one's range is so dependent upon weather, how one drives, is one using climate control, etc.
2015 Model S 70
177k miles
I bought used Jan 2020 with 147K miles
Battery warranty expires Dec 3 2023
About a month ago, with my battery warranty about to expire and the capacity in the vicinity of 70%, I decided that I needed to know as well as possible if I had a claim.
I read that to recalibrate, one should charge to 100%. I had never done that before, so I did charge to 100% at a supercharger. I was then going to drive it to about 5%, charge it up to about 95%, and see how many kwh it took. If it added less than 70*0.70*0.90 = 44.1 kwh, I was going to pursue exercising the warranty.
About a week later, I was down to 5% and hooked it up at the supercharger to get my data. But at 28%, it stopped charging and the "Maximum batter charge level reduced. Okay to drive. Schedule service soon." alert popped up. With my warranty expiration arriving soon, I scheduled the first available date and time - Friday 24 8am. Today (Wednesday, Nov 22) I was notified that my appointment has been pushed back to Jan 1, 2024.
If it turns out that the battery pack does have to be replaced, am I naive to hope that Tesla will honor that warranty if they don't get to see it until Jan 1? Also, is my method of estimating my capacity the way most people do it? Seeing how far it drives never made sense to me because one's range is so dependent upon weather, how one drives, is one using climate control, etc.