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Is Fast Charging Killing the Battery? A 2-Year Test on 40 Phones
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this post was submitted on 09 Nov 2025
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Here’s a fun fact: phone manufacturers know this. So what they call “100%” is not actually 100%. Your phone will not charge your battery to full. Battery charging is already designed around this.
Got proof? I've not cracked open a phone for a while to see if the component labelling matches the interface, let alone tested capacity of an extracted battery directly.
https://www.wired.com/story/how-to-improve-battery-life-tips-myths-smartphones/
Article rests on one expert. That assistant professor's publication list doesn't seem to contain evidence about it, plus the quotes in the article don't directly say it happens.
Maybe it does, but that article only seems to be guessing based on (admittedly reasonable) theory.