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by isodude 2726 days ago
Common knowledge and from what I've read about batteries the last two decades. And from using AccuBattery. Please do state why it is wrong, so we can sort it out :)

Samsung recommmends not going under 20% charge, but nothing about going over 80% https://www.samsung.com/uk/support/mobile-devices/how-can-i-...

gadgethacks thinks that we should avoid going over 80% https://android.gadgethacks.com/how-to/set-charging-limit-yo...

Apple has fantastic information: Don't charge past 80%, if it's too hot! https://www.apple.com/batteries/maximizing-performance/ The expected battery cycles are around 500 and then you have at least 80% capacity left on the battery. https://support.apple.com/en-gb/HT208387

Both samsung and apple says that you should have at least 50% charge if you store the device long term and also avoid going too low and leave it empty.

I get that apple/samsung will not recommend not charging 100%, from using accubattery (play store) they say that a full charge uses about one charge cycle, but charging to 82% does not take any charge cycle.

From what I've read the best thing for the longevity of the battery would then be to have it between 20 and 80%. But if you will replace the battery or phone after 500 charging cycles you could just charge it to 100% as much as you like. But never go below 20%.

AccuBattery should really add a warning about the battery health when going under 20%.

I did not know that it's possible to monitor battery health in iphone settings nowadays, that's great!