All iPhone 11 Models Feature New Dynamic Performance Management System to Reduce Impacts From Aging Batteries

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iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max devices have a new hybrid software and hardware system for performance management, according to an Apple support document uncovered by 9to5Mac.


Apple says the automatic, always-on system is "more advanced" than battery and power management systems on older iPhones, working to provide the "best possible performance as battery aging occurs over time." The new iPhones' power needs are dynamically monitored, with performance managed in real time.

All lithium-ion batteries have a limited lifespan, and Apple says that battery aging might still eventually lead to "noticeable, possibly temporary, effects" on performance, such as longer app launch times, lower frame rates, reduced wireless-data throughput, backlight dimming, or lower speaker volume.

To review your iPhone battery's health and see if Apple recommends a battery replacement, navigate to Settings > Battery > Battery Health on iOS 11.3 or later. Apple typically recommends replacing an iPhone battery once its maximum capacity relative to when it was new has dropped below 80 percent.

iPhone battery replacements are free of charge with AppleCare+ or $69 out-of-warranty for the latest iPhones. Visit the Get Support page on Apple's website to initiate the replacement process.

Apple's performance management system became the subject of controversy when it was discovered through Geekbench results in late 2017, as Apple failed to inform customers when the system was introduced in iOS 10.2.1, leading to multiple class action lawsuits and government scrutiny around the world.

While some viewed the throttling as Apple's way of forcing customers to upgrade to newer iPhones, Apple denied any sort of planned obsolescence scheme, noting it "would never... do anything to intentionally shorten the life of any Apple product, or degrade the user experience to drive customer upgrades."

Article Link: All iPhone 11 Models Feature New Dynamic Performance Management System to Reduce Impacts From Aging Batteries
 
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techfreak23

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Sep 8, 2013
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I hope it’s better because my battery health has been at 86% since January, which does not seem right to me. My phone has gone through at least 250 cycles since then, plus the heat it withstood during the summer, so I’m thinking it’s inaccurate. If it isn’t, that’s great, but something seems off... really wish they would show me the exact number of cycles on the phone rather than me having to run a diagnostic on it.
 

JPack

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Mar 27, 2017
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Wishful thinking, but it would be nice to see more parameters such as battery internal resistance. This is what causes unepxected shut downs, not diminished battery capacity. Right now, an iPhone can be in performance management mode even though the battery has good capacity.
 
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MauiPa

macrumors 6502a
Apr 18, 2018
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I hope it’s better because my battery health has been at 86% since January, which does not seem right to me. My phone has gone through at least 250 cycles since then, plus the heat it withstood during the summer, so I’m thinking it’s inaccurate. If it isn’t, that’s great, but something seems off... really wish they would show me the exact number of cycles on the phone rather than me having to run a diagnostic on it.
There are other battery apps. "There is an app for that". Truthfully though, there are a lot of other factors that go into battery life than cycle count. Rapid charging is a big battery life zapper, not sure why so many people are fixated on this as a feature. "Charge your battery in an hour, get a new battery next year". sounds like a good commercial, eh?
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Wishful thinking, but it would be nice to see more parameters such as battery internal resistance. This is what causes unepxected shut downs, not diminished battery capacity. Right now, an iPhone can be in performance management mode even though the battery has good capacity.
True, but measuring battery health is not an exact science, otherwise you would see a little fuel gage indicator that would be accurate.
 

IG88

macrumors 6502
Nov 4, 2016
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really wish they would show me the exact number of cycles on the phone rather than me having to run a diagnostic on it.
I use Battery Health 3 on my Mac to read charge cycles on iPad and iPhone.

I believe Coconut Battery on Mac can also pull that data as well.
 
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garevans

macrumors newbie
Aug 26, 2008
16
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I hope it’s better because my battery health has been at 86% since January, which does not seem right to me. My phone has gone through at least 250 cycles since then, plus the heat it withstood during the summer, so I’m thinking it’s inaccurate. If it isn’t, that’s great, but something seems off... really wish they would show me the exact number of cycles on the phone rather than me having to run a diagnostic on it.
Have you tried using the support app and asking them to run a diagnostic to get the correct number of cycles?
 
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now i see it

macrumors 601
Jan 2, 2002
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They've taken throttling to a whole new level. In the past the phone would throttle a certain percentage and that was that and it would be easy to tell. But with the new iPhone 11, it has adaptive throttling that may or may not throttle the phone to varying degrees — there's not going to be a definitive way to know how much or if it's throttling at all.
Two years from now as these batteries age there's going to be this gray area of uncertainty as iOS updates and adaptive throttling mess with the phone's performance. There's not going to be any way to know if Apple borked an update, slowing all these phones down, or the adaptive throttling is doing its thing sometimes and sometimes not.

As sure as the sun will set today, there's going to be a lot of confusion 2-3 years from now as people start to experience slower phones but the battery age is at maybe 85-90% which Apple will claim doesnt necessitate a new battery.

This isn't going to end well
 
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apolloa

macrumors G5
Oct 21, 2008
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Time, because it rules EVERYTHING!
And iOS 13.1 will being Apples battery throttling to the iPhone XR and XS. I’m sure I remember Apple claiming these phones were more advanced with their battery management, yet here comes the throttling software.
the story was in the Verge, I would post the link to it but this new buggy forum layout won’t let me paste the link..
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They've taken throttling to a whole new level. In the past the phone would throttle a certain percentage and that was that and it would be easy to tell. But with the new iPhone 11, it has adaptive throttling that may or may not throttle the phone to varying degrees — there's not going to be a definitive way to know how much or if it's throttling at all.
Two years from now as these batteries age there's going to be this gray area of uncertainty as iOS updates and adaptive throttling mess with the phone's performance. There's not going to be any way to know if Apple borked an update, slowing all these phones down, or the adaptive throttling is doing its thing sometimes and sometimes not.

A sure as the sun will set today, there's going to be a lot of confusion 2-3 years from now as people start to experience slower phones but the battery age is at maybe 85-90% which Apple will claim doesnt necessitate a new battery.

This isn't going to end well
They will pull the same old trick to make more money and falsely sell customers new iPhones under the belief their old ones are too slow.
 

IG88

macrumors 6502
Nov 4, 2016
490
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I don't feel like adaptive power management is sinister. They probably just regulate peak battery demand based on estimated battery peak current capability.

So instead of throttling the crap out of the CPU, it will theoretically only throttle to the extent it needs to. And that likely doesn't even kick in at all until the battery is near 80% capacity.
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
47,555
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They've taken throttling to a whole new level. In the past the phone would throttle a certain percentage and that was that and it would be easy to tell. But with the new iPhone 11, it has adaptive throttling that may or may not throttle the phone to varying degrees — there's not going to be a definitive way to know how much or if it's throttling at all.
Two years from now as these batteries age there's going to be this gray area of uncertainty as iOS updates and adaptive throttling mess with the phone's performance. There's not going to be any way to know if Apple borked an update, slowing all these phones down, or the adaptive throttling is doing its thing sometimes and sometimes not.

A sure as the sun will set today, there's going to be a lot of confusion 2-3 years from now as people start to experience slower phones but the battery age is at maybe 85-90% which Apple will claim doesnt necessitate a new battery.

This isn't going to end well
Or it will be referenced in the Battery section of Settings.
 

Constable Odo

macrumors 6502
Mar 28, 2008
409
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And iOS 13.1 will being Apples battery throttling to the iPhone XR and XS. I’m sure I remember Apple claiming these phones were more advanced with their battery management, yet here comes the throttling software.
the story was in the Verge, I would post the link to it but this new buggy forum layout won’t let me paste the link..
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They will pull the same old trick to make more money and falsely sell customers new iPhones under the belief their old ones are too slow.
I like the way Apple manages to squeeze blood out of a stone. Yeah, go Apple.
 
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coolfactor

macrumors 601
Jul 29, 2002
4,299
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Vancouver, BC
Aha, Apple designed batteries to have a limited life - planned obsolescence! Where are the lawyers?
I know you're being sarcastic, but you realize that all batteries have a limited life, right? It's not a design spec, but a force of nature.
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Dynamic performance lol. It's called throttling.
It's called smarter power management.
 

Aston441

macrumors 65816
Sep 16, 2014
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All this battery BS banter could be ended instantly if Apple invented and innovated a removable replaceable battery.
 
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