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Device iphone 11 iOS 14,3 update to iOS 15.0.2 and then 15.1
in iOS 14,3 battery health : 98%
after update to iOS 15.0.2 battery health still 98% and system do recalibration of battery health, after calibration battery health drop to 96% and now on the 9th of november battery health drop again to 94%,
anyone like me?
is this a OS bug?
thanks
iPhone 11, iOS 15
taufikur Said:
"Battery Health dropping fast after update iOS 15: Device iphone 11 iOS 14,3 update to iOS 15.0.2 and then 15.1 in iOS 14,3 battery health : 98% [...]is this a OS bug?"
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No. This is not a bug. It decreases as time proceeds, eventually depleting (which is something to avoid all together). The percentage is just a guestimation. So, all is fine.
taufikur Said:
"Battery Health dropping fast after update iOS 15: Device iphone 11 iOS 14,3 update to iOS 15.0.2 and then 15.1 in iOS 14,3 battery health : 98% [...]is this a OS bug?"
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No. This is not a bug. It decreases as time proceeds, eventually depleting (which is something to avoid all together). The percentage is just a guestimation. So, all is fine.
taufikur Said:
"Now my battery health is 92%: Yeah, i hope this battery health not represent actual battery hardware performance"
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Getting this Replaced:
Once it reaches 80%, then it is most certainly down there. It would then be time to get a new battery. I've only had my percentage go up one percent once(proving it is a guestimation). So, if this is still covered under warranty, then contact Apple Support, seeing if you can get this battery replaced, free of charge.
Apple Contact Info:
Why the Wait:
Phone calls are taking a bit to go through at the moment, due to lots of calls. With the Coronavirus Pandemic, many are at home at the moment, with much time on their hands to contact Apple. So, just stay on the line, and you will get through :)
taufikur Said:
"It’s ok with battery health decreases, but it's dropping faster than before,: dropping 2% within half a month (iOS 15) while in iOS 14.3 need 3 - 5 months for dropping 1%"
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Yes. It is OK. There is no way to determine when this starts. Note that an iPhone typically gets 1-3% degrading right out-of-the-box. So, all is OK, from that perspective too.
taufikur Said:
"Now my battery health is 92%: This isn't normal, I've never experienced like this so fast (after update to iOS 15)"
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Guestimation Percentages:
These percentages are all guestimations. It may increase, even. Once it reaches 80% or lower, then it is time for a new battery.
It’s ok with battery health decreases, but it's dropping faster than before,
dropping 2% within half a month (iOS 15) while in iOS 14.3 need 3 - 5 months for dropping 1%
Now my battery health is 92%
This isn't normal, I've never experienced like this so fast (after update to iOS 15)
How old is the iPhone? You do not have a problem unless the battery health goes below 80% in the span of less than 1-year.
About 7 months,
6 months using iOS 14.3 just dropping 2% from 100%
Yeah, i hope this battery health not represent actual battery hardware performance
Battery Health dropping fast after update iOS 15
