Apple iPhone 5s doesn't receive the iOS 11.3 battery health features

Late last year, Apple admitted that it had throttled the CPU on some older iPhone models. These units contained worn out batteries that were not up to providing the handset with enough power to perform certain complex tasks. When that happened, the iPhone in question would shut down, forcing the user to reboot the phone. Apple included the software required to throttle these older models through the update to iOS 10.2.1, and never told the public what was going on until last December.

Besides offering $29 battery replacements until the end of the year (reduced from $79) the company added certain tools in iOS 11.3 that allow iPhone users to monitor the health of the battery in their handsets. The update also allows owners of these models to block Apple from throttling the CPU on their phones, no matter the condition of the battery inside it.

Apple is offering these tools to those who own the Apple iPhone 6 and newer versions of the device. However, the company did say that it has employed more advanced hardware and software in its 2017 phones (iPhone 8, iPhone 8 Plus and iPhone X) "that provides a more accurate estimation of both power needs and the battery's power capability to maximize overall system performance. This allows a different performance management system that more precisely allows iOS to anticipate and avoid an unexpected shutdown."

More interesting is the fact that while the Apple iPhone 5s received iOS 11.3, the oldest iPhone model to do so, it does not come with the battery health features. That is because Apple says it does not officially throttle the CPU in that device. The company says that the issues that forced them to slow down the processor inside older models are first found in the Apple iPhone 6. So even though the latter model is a year younger than the iPhone 5s, the older model is built differently and can squeeze enough power out of an elderly battery to run complicated tasks without shutting down the phone.

source: RedmondPie

Related phones

iPhone 5s
  • Display 4.0" 640 x 1136 pixels
  • Camera 8 MP / 1.2 MP front
  • Processor Apple A7, Dual-core, 1300 MHz
  • Storage 64 GB
  • Battery 1570 mAh(10h 3G talk time)



1. antroid

Posts: 392; Member since: Jan 24, 2018

I won't be surprised if someone discovered that they were lying and throttle their older devices as well

2. Cyberchum

Posts: 1091; Member since: Oct 24, 2012

If Apple didn't include the battery health feature in the iOS 11.3 sent to iPhone 5s because "it does not officially throttle the CPU in that device," i think Victor H. has to come explain, again, how android is the biggest loser from the whole CPU throttling fiasco. . Damn writers… sorry, ass-lickers!

3. gamehead unregistered

How about ipads?

6. japkoslav

Posts: 1517; Member since: Feb 19, 2017

They have a much bigger battery, so this issue SHOULD not affect them in noticible way. But I certainly would love to measure my iPad Pro battery ... just in case. Apple is lying all the time and I would like to know if my unit is still ok.

8. kucma

Posts: 87; Member since: Feb 01, 2017

I used an app I found in the App Store called Battery Life. There are quite a few other apps out there so even if this feature is not available in iOS 11.3 for iPad there are ways for you to check your iPad’s battery health. I found that the info the app showed on the battery health of my 6S Plus was consistent with the one Apple showed so there is no lying there as far as I am concerned.

4. GreenMan

Posts: 2698; Member since: Nov 09, 2015

don't think Apple want people to keep their iDevices for longer than 3 years. Sure, they receive updates and all but their performance and overall functionality leave a lot to be desired. I think its Apple's way of saying: "Pay up, buy a new iPhone or just deal with it." For the record; iPhone 5S' performance on iOS11 is quite poor! Best for Apple users to skip the last major iOS update on their phone. Oh well, G'Day!

5. kucma

Posts: 87; Member since: Feb 01, 2017

I tend to disagree. My wife’s 5S is working very good. Not as fast as my 6S Plus but well beyond satisfactory. Considering it is a 5 year old phone I would call it decent rather then poor. :) Cheers from across the Ditch mate! :)

10. GreenMan

Posts: 2698; Member since: Nov 09, 2015

Ah! So you've an iPhone 6s Plus and your lady has to deal with an old iPhone 5s that so happens to be just 'satisfactory'? Come-on, mate! She's a fine lass and you a lucky lad if she doesn't complain about her ancient phone! Cheers!

15. kucma

Posts: 87; Member since: Feb 01, 2017

Haha! Your comments always make me laugh! :) Actually it’s a funny story behind this. While I always liked Mac I refused to get an iPhone for many years. We were both running Samsung but my wife got fed up with all the issues and slow performance. So she insisted to get 5S and I gave in (which is what you do when your wife wants something...) and I bought her the darn iPhone. Turns out I liked it too so some months later I got a 6S Plus for myself which is still a great phone. I use it for work as well. The only thing I regret is that I didn’t get an SE instead of 5S. I just wasn’t sure about iPhones at the time and was happy she chose the cheapest one to trial it out. :)

7. 47AlphaTango

Posts: 734; Member since: Sep 27, 2015

LOL! My mother's iphone is running the latest ios 11.2.6! And is still performing just fine! Even those decent games still works well on my mother's iphone!

9. kucma

Posts: 87; Member since: Feb 01, 2017

And what model is that?

11. GreenMan

Posts: 2698; Member since: Nov 09, 2015

That's great news, then. The 5s I saw on YouTube was running an initial stable build of iOS 11 and it was poorly optimized for The 5s with a few bugs here and there. Seems like Apple has fixed it. My bad, mate!

21. path45th

Posts: 406; Member since: Sep 11, 2016

I still find the iPhone 5s on iOS 11 fully usable. In fact, ios11.3 has made the performance even better. And it’s on its fifth year. I’ve recently upgraded to iPhone 8 Plus not because of poor performance but because I got bored of it.

12. clarity

Posts: 56; Member since: Jun 19, 2017

Updating iOS brings even more problems than those that already exist. Every iPhone should stay on its factory iOS. People who update are just dumb when they can have every new feature by jailbreaking, without being slowed down by updates.

13. Sania

Posts: 97; Member since: Nov 04, 2017

Not really, jailbreaking your iOS device nowadays will leave your device vulnerable without the latest security patches

14. clarity

Posts: 56; Member since: Jun 19, 2017

That's actually not true. When all iPhones were crashing because of the telugu crash character, jailbroken users got a patch the same day it was found, when stock users had to wait over a week for it. Same for Spectre measures. Jailbroken users got a fix the same day, stock users had to wait for betas and betas to be released.

16. kucma

Posts: 87; Member since: Feb 01, 2017

And you say that because you read it somewhere? My experience with updating old iPhones is exactly the opposite of your statement.

17. clarity

Posts: 56; Member since: Jun 19, 2017

and I say that because I have a 7 on 10.1.1, and a 5s that was on 9,10 and is now on 11.1.2. 9 was great, 10 was good, 11 is just a pain. 11 killed ram management and battery in every single iPhone. I have everything 11 has on my 10 device and even more. If you never jailbroke a device, you simply won't understand my point.

18. BuffaloSouce unregistered

Yeah because the common consumer knows about jailbreaking....I’m pretty sure they would like to keep their warranty intact

19. clarity

Posts: 56; Member since: Jun 19, 2017

jailbreaking does NOT void your warranty. Restoring from iTunes leaves absolutely no traces of jailbreaking.

24. markpowervr

Posts: 31; Member since: Dec 22, 2015

I had the 5s on ios 10.3 and it always shutting down frequently. Apple is lying! that is my first smartphone coming from sony ericson querty keyboard phone that was given to me by my sister and I know how it performs over time. Its performance is very fluid on ios 8, ios 9 is laggy and earlier version of ios10 seems comparable to ios 8 but ios 8 is much smoother, then ios 10.2.1 came without realising they will throttle my device so I updated it! I didnt notice it but as time goes by...why my phone suddenly shutting down when my battery is at 90 percent or less than that, then there these stories I've read in different tech sites that their phone just like mine suddenly shutting down mostly the iphone 6 but not the 5s, but my 5s frequenty shuts down like ss1ht! I have to loan again and buy iphone to upgrade because the performance is not just like before i was on ios 8, i have now the 7 plus, i bought it used and still im on ios 11.2.5, i will never ever update it again, i learned my lesson on my beloved iphone 5s 16gb model!!!!!they will throttle your device, slowed it down, become laggy just like entry level android phone and you will be pest! until you gived up and buy again a new phone!!! stories i'ved read from planned..... very true it happened to me and my bad for updating my ios device. they will fix the bug, added a new bug, fix it again, then added a new bug, become faster slightly then another update so update again become laggy, new update again become slightly faster, then buggy update, then bew features become more laggy then shutting down then youtube become chuppy! then and so on and so 4th!!! youre flagship phone is equally laggy as android entry level phone as of sd400 series!!!

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