this post was submitted on 16 Feb 2024
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[–] [email protected] 44 points 8 months ago (2 children)

... Aren't devices designed to only charge the battery to 90% (and report that as 100%), because actually changing a battery to 100% is pretty harmful for it?

[–] [email protected] 20 points 8 months ago

You're thinking of cars, industry and others that have high value batteries.

Power tools, smartphones etc charge to the maximum 4.2V/cell, sometimes even 4.3V (some chemistries safely allow it) because the average person just wants the maximum runtime and will replace the equipment before the battery degrades significantly.

[–] [email protected] 1 points 8 months ago

Yeah, I'm pretty sure I read that somewhere too. The reason being overcharging just once basically kills them, so they give it a lot of leeway and say it's 100% well before that.