Range Loss Over Time, What Can Be Expected, Efficiency, How to Maintain Battery Health

[jjrandorin]

yes, I do know about that, this method showed me ~63kwh which still differs from 1.5k km ago ~68

There isnt anything you can do about that, if its real battery degradation, so no amount of charging and discharging would change it if thats the case.

If it isnt, its still what the BMS thinks. In neither case is it anything that you can really do anything about.

 

[myztic]

There isnt anything you can do about that, if its real battery degradation, so no amount of charging and discharging would change it if thats the case.

If it isnt, its still what the BMS thinks. In neither case is it anything that you can really do anything about.

I saw a reddit thread where some guy contacted tesla about fast degradation, they took his car for around 2 days. He was checking the car from tesla app and have seen that Tesla specialists simply plugged it on a charger and left it on 100% for a while, after which he says range became normal again. Anyways I think ill give it a try. What Ive read it can miscalibrate if a user does not discharge it much and never charges it above 80%. Its kinda BMS does not see a big difference in SOC so cant balance battery well. Anyways I will do in in a few days, because battery is like 60% charged now, gonna discharge it below 20 close to 10%, leave it for a couple of hours, charge it to 100%, leave it again and drive. Maybe I will be able to bring some new info about that confirms this reddit thread Ive spoken about before, maybe not, but still its an info, isnt it.

 

[jjrandorin]

I saw a reddit thread where some guy contacted tesla about fast degradation, they took his car for around 2 days. He was checking the car from tesla app and have seen that Tesla specialists simply plugged it on a charger and left it on 100% for a while, after which he says range became normal again. Anyways I think ill give it a try. What Ive read it can miscalibrate if a user does not discharge it much and never charges it above 80%. Its kinda BMS does not see a big difference in SOC so cant balance battery well. Anyways I will do in in a few days, because battery is like 60% charged now, gonna discharge it below 20 close to 10%, leave it for a couple of hours, charge it to 100%, leave it again and drive. Maybe I will be able to bring some new info about that confirms this reddit thread Ive spoken about before, maybe not, but still its an info, isnt it.

All that does is possibly change the BMS calculations. It might change the number on your screen, but that number is an approximate calculation. REAL degradation CAN NOT BE REVERSED, period. Fake degradation can, with "fake" defined as "the number on your screen", but you put extra cycles on your battery to make that fake number on your screen go higher.

In any case I dont normally participate in battery degradation discussions because everything that can be said about Tesla battery degradation already exists here in the probably 100s of threads and multiple thousands of posts. If you want to attempt to make the number on your screen read higher, charging to various levels "might" help that.