Battery Health
My new iPhone 13 is less than 4 months old. Should I expect my Battery Health to have degraded to 99% capacity already?
iPhone 13
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My new iPhone 13 is less than 4 months old. Should I expect my Battery Health to have degraded to 99% capacity already?
iPhone 13
sounds about right
have you read About the battery and performance of iPhone 11 and later - Apple
and maybe iPhone Battery and Performance - Apple Support
and Batteries - Maximizing Performance - Apple
people report apple does not change
the batteries until they are lower than 80% in health
sounds about right
have you read About the battery and performance of iPhone 11 and later - Apple
and maybe iPhone Battery and Performance - Apple Support
and Batteries - Maximizing Performance - Apple
people report apple does not change
the batteries until they are lower than 80% in health
Yep. I’ve read all the stuff. Maybe I don’t understand it, but I just didn’t think that the battery health would start moving down so quickly. At this rate, I’ll be at 80% in a year. That’s just wrong.
No, it’s not wrong, it is what should be expected. 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”. 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.
It’s meaningless to look at a 1% change, anyway; the gauge truncates the reading to an integer. So 99% could be any value from 99.9% to 99.0%. Thus, a 0.1% drop would take it to 99%.
The absolute best way to get maximum use on a charge, as well as slow the decline of battery capacity long term is to enable Optimized Battery Charging (Settings/Battery/Battery Health) and charge the device overnight, every night. The battery will fast charge to 80%, then pause. During the nighttime pause the phone will use mains power instead of battery power, allowing the battery to “rest”, and thus reducing the need to charge the battery quite as often. The phone will resume charging to reach 100% when you are ready to use your phone; it will “learn” your usage pattern. If you enable iCloud Backup (Settings/[your name]/iCloud - iCloud Backup) the phone will back up overnight also, assuring that you can never lose more than the current day’s updates.
it's not a linear decline i purchased my iphone 11 when it was released and my battery level is 88% today
Thank you!
Battery Health