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Want to know something why my battery healthy decreases so fast

why my battery health decreases so fast

iPhone XR, iOS 14

Posted on Jun 6, 2021 5:30 PM

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Why my battery health decreases so fast

Posted on Jun 6, 2021 5:31 PM

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Jun 6, 2021 5:37 PM in response to renu162

Define “so fast”. Batteries are consumables; they lose a little capacity every time they are discharged, then recharged. On average this works out to about a 1% loss for every 25 “full charge cycles” ( some will be a little more, others a little less). As one example, if you charge the phone overnight, every night (and that is what you should do; it is a best practice), it starts the day at 100%. If it drops to 20% by the end of the day before you charge it again overnight that counts as 0.8 full charge cycles (20% to 100%), or about 24 full charge cycles per month of use. For this example your battery capacity will lose about 1% per month. Of course, if the end-of-day level is higher than 20% the capacity loss will be a little less, and if it is lower than 20%, or you charge it during the day, the capacity loss will be higher.


Here is a lot more information→iPhone Battery and Performance - Apple Support

Want to know something why my battery healthy decreases so fast

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