iPhone 6s turning off at 10-20%

This has been happening with my wifes 6s for the past few weeks, looks like I'm going to have to book it in with Apple. Gets to about 15% then shuts down and needs to be plugged in to get it going again.
 
Braddrum said:
This has been happening with my wifes 6s for the past few weeks, looks like I'm going to have to book it in with Apple. Gets to about 15% then shuts down and needs to be plugged in to get it going again.
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Good luck, let us know how it goes and what doesn’t / does fix the problem.
 
mine just switched off at 40% this bug is getting more enoying week by week. seems every update from ios10 makes it worse!!
 
kazmac said:
Thanks for the comment, I see you've been having this problem for some time.
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Yeah but currently what to happen to me is a bit weird. For instance, yesterday it turned off at 5% as usual but after 40 minutes approximately, I tried turning on and I got it. Since then, the use was the normal one I mean, I could use the phone for more than 30-40 minutes. That's really strange thing.
 
Ruja said:
Oh that's too bad man. What is currently your iOS? I have it in 10.1 and apparently it seems to work better, at least in the last two days. Right now it's 9% and it's still working.
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10.1 from DFU Restore (but also restored my backup).
Using coconutBattery/BatteryLife it seems my overall capacity has resumed to a healthy 93% (instead of fluctuating down to as low as 40%).
 
matthewadams said:
10.1 from DFU Restore (but also restored my backup).
Using coconutBattery/BatteryLife it seems my overall capacity has resumed to a healthy 93% (instead of fluctuating down to as low as 40%).
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So it seems better doesn't it? Although I don't understand why a battery has to lose its capacity in 1 year...
 
Ruja said:
So it seems better doesn't it? Although I don't understand why a battery has to lose its capacity in 1 year...
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These used to go for at least two years, but I wouldn't put it past C[r]ook & co. to force people to upgrade every year by putting in inferior batteries. Say what you will, but Apple is purely out for profit now and wants you to upgrade every year. I have been using low power mode since it was introduced but that shouldn't be a problem. Latest issue is getting cut and paste to work in web based gmail since the app itself is a battery hog.

If my problems persist, I will most likely replace with an SE although I loathe iOS 10. I have a feeling I will have to restore again but I resisting because the activation lock bs.
 
Ruja said:
So it seems better doesn't it? Although I don't understand why a battery has to lose its capacity in 1 year...
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Apple says that the iPhone battery should go to 80% of its initial performance after 500 full discharge cycles. So I’m not surprised it went to 90% in a year.
 
unclemax said:
Apple says that the iPhone battery should go to 80% of its initial performance after 500 full discharge cycles. So I’m not surprised it went to 90% in a year.
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Not so much that it should as much as that it just could.
 
Oh great. After updating to ios 10.1 my 6s is having problems with battery percentage as well - getting stuck, then rapidly dropping etc.

Already had one 6s changed by Apple two months after it came out for the same problem. Their diagnostics showed the battery was fine, but changed the phone nevertheless.
 
AnZ78 said:
Oh great. After updating to ios 10.1 my 6s is having problems with battery percentage as well - getting stuck, then rapidly dropping etc.

Already had one 6s changed by Apple two months after it came out for the same problem. Their diagnostics showed the battery was fine, but changed the phone nevertheless.
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I assume apple gave you a refurbished phone, don't I? And in two months a refurbished phone which it supposes to have a new cover, screen and BATTERY ... how is possible the phone has the same issue??? Definitely this phone (6S model I mean) or the battery used on this model are not well.
 
Ruja said:
I assume apple gave you a refurbished phone, don't I? And in two months a refurbished phone which it supposes to have a new cover, screen and BATTERY ... how is possible the phone has the same issue??? Definitely this phone (6S model I mean) or the battery used on this model are not well.
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I don't know if it was a refurb. or not. But it's been working great for 10 months up until now. Warranty is over as well, so I'm stuck with it :(
Not sure if it's an ios10.1 issue or just a coincidence that it started happening to this phone too right after upgrading.
 
AnZ78 said:
I don't know if it was a refurb. or not. But it's been working great for 10 months up until now. Warranty is over as well, so I'm stuck with it :(
Not sure if it's an ios10.1 issue or just a coincidence that it started happening to this phone too right after upgrading.
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I don't believe the problem was the updated iOS. It's weird there is so many people with the same problem... some in other iOS version.
 
kazmac said:
These used to go for at least two years, but I wouldn't put it past C[r]ook & co. to force people to upgrade every year by putting in inferior batteries.
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And the moon landing was fake. C'mon, no product is free from faults, especially when you're trying to produce 50 millions of them.
 
poobear said:
And the moon landing was fake. C'mon, no product is free from faults, especially when you're trying to produce 50 millions of them.
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If this was my very first Apple issue, I'd agree with you. It's my 2nd iPhone problem with this 6s a month apart and 3rd iPhone issue in the past 2 years. So when this happens to you and your almost $1k phone, I'll remember the moon landing quip.
 
My phone has done this a few times actually. I didn't think anything of it till it happened tonight and I remembered this thread.

Bit stuck right now though as I'm jailbroken and both my PC and laptop went belly up a few weeks ago so I have no access to iTunes for a restore to make an appointment.

It cut off at 18% tonight. Wouldn't come back on till I plugged it in.
 
Mine cut off at 40% and also wouldn't come back on until plugged in. When it did power back on straight after plugging it in, it was still at 40%. Battery wear level is 99% having only lost 1% in a year. If it's any consequence, I have a 6s with a Samsung chip. I hope there is a software fix but I am thinking if it was fixable with an patch, Apple would have released one by now.

As soon as I can get my hands on a 7+ 128GB, silver I will buy one and 'recycle' this one.
 
JemTheWire said:
I am thinking if it was fixable with an patch, Apple would have released one by now.

As soon as I can get my hands on a 7+ 128GB, silver I will buy one and 'recycle' this one.
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Yeah, I'm totally agree with you. If Apple hasn't released anything at the time is because of there's not a software issue so it's a hardware one with I don't know, battery or motherboard or something so you'll do well if you change it as soon as you can.
 
Hi guys. I have the same exact problem with my iphone 6s 64gb that you are having!!

Mine shuts off at 30 and even 40% of battery left. When i plug in the cable it comes back with the same % as before shutting off. After like 1 minute it shuts off again. All this again and again if i dont keep the plug in or i put it in battery saving mode: if i do that the phone keep running until 1% (and remains at 1% for like 30 minutes??)

I tried calibration and i will even try restore but i see from you it doesn't resolve a thing. So what can we do? How Apple is not doing anything about it? :/

(sorry for my english guys)
 
I had this problem forever and tried everything. I finally pushed apple for an exchange under AppleCare.

I documented all the times the phone shut off and they couldn't diagnose it.
 
lorberto said:
Hi guys. I have the same exact problem with my iphone 6s 64gb that you are having!!

Mine shuts off at 30 and even 40% of battery left. When i plug in the cable it comes back with the same % as before shutting off. After like 1 minute it shuts off again. All this again and again if i dont keep the plug in or i put it in battery saving mode: if i do that the phone keep running until 1% (and remains at 1% for like 30 minutes??)

I tried calibration and i will even try restore but i see from you it doesn't resolve a thing. So what can we do? How Apple is not doing anything about it? :/

(sorry for my english guys)
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I believe the only way to resolve it is trying a change in Apple if it's still in warranty time. If don't, try changing the battery.
 
DOUGHNUT, were you able to solve your problem at the genius bar? I have the same issue and they told me I need to do restore the system as if new. I wonder if that worked for you?

thanks for your response!

---

DOUGHNUT said:
for you guys who are having these kinds of problems, do the phones usually die when you are outdoors?

i have very similar issues with my 6s and i've noticed that the phone turning off typically happens when the phone is exposed to the cold outside for an extended period of time. i know the 6s has a recommended operating range of above 32 degrees, but i have had this issue even when the temperature is around 40 degrees.

what i'm noticing is that once the phone is exposed to the cold for around 10-15 minutes, the phone will sometimes die out of nowhere (I've seen with battery life anywhere from 10% to 50%) and when i try to turn it on, it shows the battery as empty. but...as soon as i plug the phone back in, the battery will show up with percentage that the battery died at. and the issue is very frequent especially during the winter. any given week, i'd say the phone will die prematurely 3 times usually when i'm outside going from work. i have had iPhones since iPhone 3G and i've never had batteries this sensitive to cold.

Gonna check out the Genius Bar tomorrow and see what they can do.
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