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Why Charging Your Gadgets Over 80% Is Such a Bad Idea | iFixit News
(www.ifixit.com)
This is a most excellent place for technology news and articles.
If 80% is enough, there is not much to loose that is usually where the battery health finds its plateau after some years. I rather change my battery once it hits 80% health after two years. I don't want to use it like it would behave when the battery is already dead.