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S20 Ultra 5G battery re-write the battery.sat file on Non-rooted phone

So I've done some research about the internal batteries on S10+ and the Note 10+ and all the S20 models.

I'm experiencing weird battery fluctuations and no, I don't drain it and then charge it back up. I charge it partially and set it to Medium Power Save Mode and only get about a day with it.
Back to the research, does anyone know how to re-write the battery.stat file on a NON-ROOTED phone from T-Mobile?