Battery Health has errors, the battery suddenly becomes healthy

[peterwillcn]

Is there an existing issue for this?

• [X] I have searched the existing issues

What happened?

Upgrade 2023.38.9.1 Model Y LR Battery Health 10.7 -> 3.7 ? Has the statistical algorithm changed, or has Tesla API data indeed been modified? In theory, batteries may become unhealthy with use, but do these data indicate that batteries are becoming healthier? Is it Tesla's targeted data fraud?

Expected Behavior

Has the statistical algorithm changed, or has Tesla API data indeed been modified? In theory, batteries may become unhealthy with use, but do these data indicate that batteries are becoming healthier? Is it Tesla's targeted data fraud?

Steps To Reproduce

Battery Health

Relevant log output

Battery Health

Screenshots

Additional data

No response

Type of installation

Docker

Version

v1.24.1

[cwanja]

I'll be honest, not really sure what you are reporting here. Your version is also several releases behind. What is the issue? Screenshots do not reveal your intent.

[peterwillcn]

I'll be honest, not really sure what you are reporting here. Your version is also several releases behind. What is the issue? Screenshots do not reveal your intent.

Sorry, what I mean is that the statistical algorithm has changed, or has the Tesla API data been modified? In theory, batteries may become unhealthy with use, but do these data indicate that batteries are becoming healthier? Is it Tesla's targeted data fraud?

[dyxyl]

The value of "Max range (now)" hasn't changed much and also the graph at the bottom doesn't show any points near to 70 kWh, so I suspect the reported degradation is a statistical error.

The calculation of "Usable (now)" and the degradation seems to be based on energy added by charging in the last month, with some filtering. Maybe that is inaccurate in some cases? I don't understand why the graph uses a different calculation.

[shingoxy]

So, I think the predicted "Loss" for the batteries is not very accurate.

[github-actions[bot]]

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