Any way to get battery capacity with OBD ii

Yes. Several people have worked this out recently, though I can’t speak to your particular reader. Search threads for “budget battery capacity”. There have been posts on this in the last few days, so if you can’t find it just scroll down. There is also a thread whose title includes “battery capacity yourself “, which is about using a specific Autel reader.


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Here is the thread you want - https://insideevsforum.com/community/index.php?threads/budget-battery-capacity-readout.10531/

The Autel reader was working via beta test, but it stopped working.

 

It's in the software, but also requires that your reader hardware have a big enough buffer. Many of the cheap ones do not but there's a $20-$30 one in the thread that does have a big enough buffer.