Charge based on original or current capacity ?

[Kdoh]

I have a 2015 model S with 120,000 miles on it original range was 272 now I am at 252
So when I am charging do I charge to 80% based on original capacity or current capacity to try to be easy on battery ?
From what I understand today is to try and keep my battery healthy I should charge every day just what I need without going over 80 or under 20% or even now I’m hearing stay 7030
Thanks
Kdoh

 

[SilverString]

My guess is the latter.

 

[GtiMart]

The battery management system estimates total capacity, it's not a perfect measure and it will change over time. Don't fret too much about the 252 vs 272.
Percentage full has to be based on the current estimate of capacity, thus the 252 in your case, otherwise you could never reach 100% which makes no sense.

 

[Kdoh]

The battery management system estimates total capacity, it's not a perfect measure and it will change over time. Don't fret too much about the 252 vs 272.
Percentage full has to be based on the current estimate of capacity, thus the 252 in your case, otherwise you could never reach 100% which makes no sense.

Thanks

The battery management system estimates total capacity, it's not a perfect measure and it will change over time. Don't fret too much about the 252 vs 272.
Percentage full has to be based on the current estimate of capacity, thus the 252 in your case, otherwise you could never reach 100% which makes no sense.

thanks

 

[NewbyMaybe]

Going above 70 or 80 makes sense if you are going to drive right away. Letting the car sit overnight or all day on a regular basis with a full charge will kill the battery's longevity.

 

[DerbyDave]

I generally charge 70 30. I notice range decreases somewhat (10 to 15 miles less than "normal") until you charge over 90% again, say, for a trip. The range then readjusts range up to a more "normal" range, at least for me. I think they are working on making the range more accurate than it is now.

 

[Kdoh]

Going above 70 or 80 makes sense if you are going to drive right away. Letting the car sit overnight or all day on a regular basis with a full charge will kill the battery's longevity.

Yeah I’ve heard that so I try to schedule when I’m leaving on a trip, But I find have to outsmart the app, if I say I’m leaving at 10 AM the car will be fully charged by 7 AM LOL