Quote:
Originally Posted by Aleron Ives
I don't think that's true. The battery is at 100% when each cell is at 4.2V. You can charge beyond that, but any properly designed charging mechanism will prevent it, since you'd probably start a fire. If a battery meter tells you that you're at 100% when the charge is < 4.2V, then it's lying. Some devices do this in order to trick you into treating your batteries better, and others do not.
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I'm not aware of any made in the last decade that don't lie in this sense, at both ends. I believe it's a requirement of the design of battery circuits these days; at the high end just to avoid user confusion about why they can't fully charge their battery, at the low end because the battery circuit itself needs power, and because discharging too far, particularly fast, can cause excessive whiskering, which goes beyond capacity reduction and up to shorts and oh look now we're venting with flame again!