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Is Fast Charging Killing the Battery? A 2-Year Test on 40 Phones
(www.youtube.com)
This is a most excellent place for technology news and articles.
Nah, I can't be bothered by that. And the only device's battery I really had issues with was a seven years old laptop, years ago. BMS and software will almost always know better than the user these days.
Max charge level is not something the BMS can decide for you because it's a trade off between battery health and daily charge level. That's why they ask you to choose.