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Hey! I have an IPhone 5s now but originally it was a 4s. Honestly, as the phone gets above a few years or even sometimes months the battery declines severely. By the time I actually managed to crack my 4s the phone was already shutting down anywhere from 1 to 95 percent for no reaskn
 
Location and temp made no difference for me.

I'm probably really late to join the thread but here.
I'm getting the same issues, but for me it appears to be specifically location. I don't know if I'm just going crazy but it only really happens when I'm away from home. I can get my phone at home down to 1 percent, but other places reaching 20 is the death loop. It just suddenly dies at like 25 and then shows charge phone icon, then on the next try starts just fine, and "dies" after a couple of seconds.

Like the other person though, I did test it and I have a Samsung A9. I have no idea what is going on.
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I'm probably really late to join the thread but here.
I'm getting the same issues, but for me it appears to be specifically location. I don't know if I'm just going crazy but it only really happens when I'm away from home. I can get my phone at home down to 1 percent, but other places reaching 20 is the death loop. It just suddenly dies at like 25 and then shows charge phone icon, then on the next try starts just fine, and "dies" after a couple of seconds.

Like the other person though, I did test it and I have a Samsung A9. I have no idea what is going on.


It's probably no software because I'm on iOS 10, and not on the beta currently
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Batteries can fail in different ways. Usually people think of phones going from 100 to 0 faster than normal. However there's a different kind of battery failure that occurs when the cells, even though technically charged, become worn and unable to deliver the proper voltage to power the device. When this happens the device will abruptly power off. The solution is to have the battery replaced.

I don't think it would be that sudden though, I think it would gradually start to die at a higher percentage, not just go from dying at 0 to dying at 20 overnight.
 
Just found this topic after starting another one. Our phone 6s randomly shuts off, even at 80 or 90%. And will not power back on unless connected to a charger. As soon as it powers up then it's is still showing 80% when the charger is removed.
 
I'm probably really late to join the thread but here.
I'm getting the same issues, but for me it appears to be specifically location. I don't know if I'm just going crazy but it only really happens when I'm away from home. I can get my phone at home down to 1 percent, but other places reaching 20 is the death loop. It just suddenly dies at like 25 and then shows charge phone icon, then on the next try starts just fine, and "dies" after a couple of seconds.

Like the other person though, I did test it and I have a Samsung A9. I have no idea what is going on.
[doublepost=1478662176][/doublepost]


It's probably no software because I'm on iOS 10, and not on the beta currently
[doublepost=1478662356][/doublepost]

I don't think it would be that sudden though, I think it would gradually start to die at a higher percentage, not just go from dying at 0 to dying at 20 overnight.

It seems like it has somethig to do with the temperature of the battery... Had this problem last winter once but forgot about it cause it didn't came back. This winter it got worse. Every time the phone is on low battery and outside it shuts itself down. I have watched the battery voltage in these situations (battery life app from appstore) and it drops significant under load. I think this is caused by bad batterys with increased inner resistance. In cold conditions the resistance will get worse and the battery can't hold up its voltage what forces the system to shut down. Will try replacing it with a new one and hope the problems gets away. Anyone else tried replacing it and had sucess solving this problem?
 
i am having the same problem. it started yesterday.

The device starts shutting down below the 30% and sometimes even charged it goes into a small reboot loop. Is this really a hardware issue?
 
i am having the same problem. it started yesterday.

The device starts shutting down below the 30% and sometimes even charged it goes into a small reboot loop. Is this really a hardware issue?

Try the battery info app and watch the battery voltage while performing something like a benchmark, game,... Is it going down fast and after some time in idle going back up in approximately where it was before?
 
Try the battery info app and watch the battery voltage while performing something like a benchmark, game,... Is it going down fast and after some time in idle going back up in approximately where it was before?

no it is not going down fast. its just rebooting when it is at a low percentage or telling me that it has no battery. right now it stands at 12 %. im trying to get it to go down to 0.

The funny thing is that if you don't touch the device, the battery depletes slowly without turning off. You do something and bam. it turns off. This happened on Whatsapp and Snapchat. Coincidentially whilst i was using the camera. I'm not sure if it turned off also in other instances

Edt: It just went down from 19 to 13% in one swift
 
That's iOS 10 hidden bug which Apple is trying to hide. How devices which were operating fine on iOS 9 have these problems?
 
I can suggest a workaround for the problem with iPhone turning off. It works for my iPhone 6S (hopefully).
First of all I did the following steps:
1. Reset my iPhone to factory setting (didn't help)
2. Fully reset my iPhone through DFU (didn't help)
3. Called Apple support several times. We run remote diagnostics according to which everything was fine with hardware. (so this also didn't help)

Then I've noticed that iPhone doesn't turn off until full discharge when Low power mode is enabled before critical level (about 20% of the battery). I did several charge-discharge cycles to make sure.
After that and after reading many forums I decided to disable Background App Refresh for all apps. This setting is also disabled when Low power mode is on.
And now, after several charge-discharge cycles with usual iPhone use and Background App Refresh disabled I don't have any sudden turn offs. My iPhone discharges to zero as expected and works a bit longer (obviously because apps don't refresh in background).

In my point of view the problem may be with apps energy consumption calculations. iOS thinks that background apps need more energy than 20% of the battery and turn offs iPhone. As people use iPhone and apps in unpredictable manner some may have turn off at 15%, some at 20% or even 50%. It depends on how iOS calculates app energy usage. I don't know this for sure as I'm not a developer but it looks like so.

Hope this will be helpful for someone.
 
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That's iOS 10 hidden bug which Apple is trying to hide. How devices which were operating fine on iOS 9 have these problems?
To be fair, there were similar kinds of threads after iOS 9 came out (and with various versions before that).
 
That's iOS 10 hidden bug which Apple is trying to hide. How devices which were operating fine on iOS 9 have these problems?

Not fine, really. I had one such shutdown in spring, it was also related to heavy usage at low battery – I was updating my Podcasts, the process which normally would shave some 1-3% off the battery in a matter of seconds, and off it went. I also posted some links to discussions of this problem on page 10 of this topic, those are from August, I think. My theory is that iOS10 is just more power-hungry, that’s why we see it more often now.

Some update on my case. Went again to the Apple Store, they could see the out-of-warranty exception the Apple Support advisor has put on my file so they took my phone in for no charge. Said they would have to send it to the “factory” for thorough testing and repairs / possible replacement, apparently that’s how things are done in China. In the meantime I get to use a loaner iPhone 6 (in gold!). Repairs should take 7-10 days, will see how it goes and I will post updates here.

Also, for what it’s worth, the Genius told me that recently they started seeing more people with battery-related issues. She said in majority of cases the iOS restore would help, which correlates with what the previous Genius said (he said it sometimes helped and sometimes didn’t). They would then see what the battery test showed and send it “to factory” for battery replacement or a more thorough repair / replacement. Needless to say, this was my second time there, both times the battery test showed the battery was in the green zone and I’ve tried the DFU restore, so here we go.
 
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Same problem as all of you, with iPhone 6s 64Go and just out of warranty...
To me ios10 is draining too much power because of the new functionalities, and the battery handling doesn't work correctly.
Obviously it is software related, and Aapple can do something about it, but will they improve or even disable iOS functionalities for our phones to work? that's the question.
In Europe I can have a replacement/free repair by my carrier but I don't think that would help, unless Apple gave them some new logic boards.
 
Same problem as all of you, with iPhone 6s 64Go and just out of warranty...
To me ios10 is draining too much power because of the new functionalities, and the battery handling doesn't work correctly.
Obviously it is software related, and Aapple can do something about it, but will they improve or even disable iOS functionalities for our phones to work? that's the question.
In Europe I can have a replacement/free repair by my carrier but I don't think that would help, unless Apple gave them some new logic boards.
It's not likely due to something like iOS 10 draining more power due to new functionalities and battery not keeping up as something like that would be widespread and affect essentially everyone. There is potentially some bug somewhere and/or something in particular about the devices that are affected and their particular setup/configuration.
 
It's not likely due to something like iOS 10 draining more power due to new functionalities and battery not keeping up as something like that would be widespread and affect essentially everyone. There is potentially some bug somewhere and/or something in particular about the devices that are affected and their particular setup/configuration.

Well iOS 10 is quite recent, and there is already 11 pages on this matter here. And people here are tech aware people, don't underestimate the fact that a lot of people find it normal or don't know a clue why their batteries don't last as long as before...

Probably phones not affected are phones where the new fancy functionalities are not activated.
Right now I'm investigating wether that could be the widgets background refresh...

Hope we have some news from apple soon!
 
There is a huge tread on this issue on a german iPhone news website with over 300 comments.

https://translate.google.com/transl...ehen-auch-unter-ios-10-1-1-104096/&edit-text=

There are also some comments about apple support being aware of the issue.

Strangely, most people on there report that their problems started with iOS10 but also that a replacement of either the battery or the entire phone fixed the problems for them. Same with me, I think the problem started with iOS 10 but my replacement phone with 10.1 is working just fine.

Is this a software bug or a hardware problem?
 
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For what it's worth: I ordered a new battery for my 6S and replaced the old one today.
The old one had only 229 load cycles but i somehow believe it is defective, since my 5S showed the same symptoms and worked flawlessly when i replaced the battery (about a year ago)
Bad thing is that this happened when both my 5S and 6S were just out of warranty :(
 
For what it's worth: I ordered a new battery for my 6S and replaced the old one today.
The old one had only 229 load cycles but i somehow believe it is defective, since my 5S showed the same symptoms and worked flawlessly when i replaced the battery (about a year ago)
Bad thing is that this happened when both my 5S and 6S were just out of warranty :(
Did it fix the issue?
 
Currently using a launch day 6 plus 64GB. The same problem started after 3 or 4 months of use. Randomly shuts off anywhere south of 40%. Fires back up immediately after plunging it in with the battery meter jumping to a higher % than before the shutdown. The lower the percentage the more likely it will shut down.

Took it to the Apple Store once when it was under warranty and they said it was a software issue. Took it once when it was a little over a year old and they said the same thing. Have "set up as new" and did battery resets with no improvement. I carry an external battery with me anytime I'm going to be away from a outlet for more than a couple of hours.

I have actually noticed a small improvement with the new iOS thou.
 
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I don't have this problem myself, but a friend of mine had and we went to the Apple Store in Amsterdam today. A man who sat across from us also had the exact same problem. My friend's was a 6, the man had the 6s. The geniuses told us that it isn't the battery: it's the logic board or the software.

However, in both instances a clean install brought the same problem, so it actually was the logic board and both phones were replaced on the spot.
 
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