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It's very bad for the lifetime of a lithium battery to let it drop all the way to 0% charge


Do most devices wait until 0% to turn off?


No, but the higher the depth of discharge, the worse the degradation will be.

See: https://batteryuniversity.com/index.php/learn/article/how_to...


The "0%" is somewhat arbitrary, this is also why it's recommended to keep lithium ion batteries between 25% and 75%.




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