@wk057 Have you been able to confirm your theory yet?
I have my own theory but it's pure speculation without the the support of data for or against it. What if they're limiting charge based on the amount of internal resistance the battery has developed. Batteries can develop high IR without necessarily losing capacity. Charging becomes less efficient because the battery heats more while charging with higher IR but a battery with high IR without degraded capacity can still be charged full but if you don't slow it down the battery gets warmer.
I always figured this is why the taper has increased over time. When new, my I was pulling 74KW at 54% but now I only pull 65KW at 54%. I assumed it was the charge management making adjustments over time to account for higher IR.
What if Tesla has decided to factor IR into ultimately how much they'll allow you to charge rather than just how fast? I cant think of any other factor in battery health that would cause them to do what they've done.
To the owners here who have experienced and NOT experienced this issue. If your capacity was unchanged or changed very little by the update, have you supercharged yet and if so have you done so to some relatively high SOC? Same question for those most effected this issue.
Would looking at supercharger efficiency tell us anything?
I have my own theory but it's pure speculation without the the support of data for or against it. What if they're limiting charge based on the amount of internal resistance the battery has developed. Batteries can develop high IR without necessarily losing capacity. Charging becomes less efficient because the battery heats more while charging with higher IR but a battery with high IR without degraded capacity can still be charged full but if you don't slow it down the battery gets warmer.
I always figured this is why the taper has increased over time. When new, my I was pulling 74KW at 54% but now I only pull 65KW at 54%. I assumed it was the charge management making adjustments over time to account for higher IR.
What if Tesla has decided to factor IR into ultimately how much they'll allow you to charge rather than just how fast? I cant think of any other factor in battery health that would cause them to do what they've done.
To the owners here who have experienced and NOT experienced this issue. If your capacity was unchanged or changed very little by the update, have you supercharged yet and if so have you done so to some relatively high SOC? Same question for those most effected this issue.
Would looking at supercharger efficiency tell us anything?
