Iphone 5s: surprise shutdowns at lower battery %

Iphone 5s; Version 8.1.1
As soon as my iphone was a one year old in November, 2014 I started having this issue. I have not been able to track a pattern as to when this happens.
Issue: When the battery is low enough: 25-40%, and I am trying to use my phone. It would suddenly hang and then shut down. When I try to turn it back on with the power key, the phone indicates no battery and asks for a plugin for charge. As soon as I plugin, the phone turns back on, and the battery is now low any more, it is at whatever percentage it was before it got shut down.
Is there any one out there with such an issue? I feel that there is a defect in the battery or a bug in software.
I am annoyed by this because I cannot trust my phone any more, it can power down randomly when I need it. Whats even more frustrating is that this problem started right after my warranty expired. I have owed iphone before, I am disappointed that the quality is degrading.

You should get your phone checked by visiting an Authorized Apple Service Provider or Apple Store next to your place,
or contact Apple Support and talk to them. They can check the battery online.
You can also visit this page to do that: iPhone - Contact Support - Apple Support
Click on Apple Support, then on ->Battery, Power &Charging ->Battery questions and troubleshooting, and follow the instructions.

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Hello everyone,
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Could this be battery related or is this a know iOS issue? I have been really careful with the battery since day one, so I would expect not to have such problems. It's really annoying, because I now have 85% of battery usage, not 100%, and I never know when it's going to power off next.
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The best way to test the battery and make sure the level being displayed is as correct as it can be is to let the battery die completely, then plug it in to charge to 100% without using it. After that, see when it powers off. You can also make an appointment at the Genius Bar at Apple or your Authorized Apple Service Provider and they can test your battery.

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There are other conditions that cause the iPhone to shut down - not only a low battery.
Examples:
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Operating the iPhone in a temperature that is too cold.
Storing the iPhone in a temperature that is too hot.
Storing the iPhone in a temperature that is too cold.

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suddenly shutdown when the battery is lower than 6% (sometimes lower than 10%)and can not power on anymore, you need to plug the AC to trigger to power on the phone.

Your battery gauge needs to be recalibrated. When the phone goes off, charge for just a couple of minutes, then run the battery down all the way. If it shuts off above 1% charge again for a couple of minutes, then run down again. Repeat until it actually goes off at 1%. Then charge for 4 hours with the wall charger without using the phone.
To prevent this happening again, about once a month run the battery all the way down until the phone shuts off, then charge to 100% with a wall charger. (This is actually recommended in Apple's iPhone tips, but they don't say why to do it. The "why" is to recalibrate the battery gauge.)

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Additionally, when the computer shuts down due to low battery, it no longer manages to resume windows but always crashs during reboot (black screen and hard disk symbol is moving, no other activity for 10 minutes)
I am working with the standard vista installation and installed all automatic updates, but also every time when I shutdown the computer, no matter how long it has been running (even after 1 minute and after a rebooting 3 minutes ago), the red shutdown symbol in start shows that an update needs to be installed.
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Message Edited by Walky on 06-18-2009 09:39 PM
Message Edited by Walky on 06-18-2009 09:41 PM

Well, the problem, seem's to have reoccured: Battery ran out (even the indicator leds on the side didn't show any life), Time reset to 1.1.2001, again some rebooting and setting the time again...
Is this a sign of a degrading battery health status?
It looks like reseting the SMC didn't help after all.

Ios 7.1 = no Wifi on iPhone 4s very low battery runtime... HELP!!!

ios 7.1 = no Wifi on iPhone 4s + very low battery runtime... HELP!!!

Welcome, sorry to hear your news, there are numerous threads on this issue. Try the trouble shooting on the other threads, I do not recommend sticking it in the freezer or heating with a hair dryer though,
If it's within warranty and trouble shooting doesn't work, get it. Ack to apple ASAP and get it replaced.
Many others are in the same position, who also have a 4s
Good luck

I have a iPhone 4 and lately it has been shutting down randomly when I still have battery left. It also doesn't turn back on, until I plug it in to the charger. But when I plug it in, the low battery sign shows up then comes to the lock screen with 68%.

I have a iPhone 4 and lately it has been shutting down randomly when I still have battery left. It also doesn't turn back on, until I plug it in to the charger. But when I plug it in, the low battery sign shows up then comes to the lock screen with like 68% left.

Morning Clementine Lin,
For more information this, please see this article:
iPhone: Hardware troubleshooting
http://support.apple.com/kb/ts2802
Take a look at the Will not turn on, will not turn on unless connected to power, or unexpected power off section.
Have a nice day,
Mario

My iphone won't switch on. I've tried holding the power and home button more than 30 seconds up to a few minutes but it didn't switch on and went straight to recovery mode. It died of a low battery and i already fully charged it i checked with my itunes.

i really need help here. I have only used my iphone for a month. my iphone won't switch on. it died of a low battery and i've already fully charged it and usually before it even fully charged, it will turn back on right but in my case nothing happened. i've tried holding the power and home button for 30 seconds and up to 2-3 minutes but no logo appear. it went straight to recovery mode. there's nothing wrong with my cable, i checked with itunes and this happened once a week ago but it did switch back on after i tried a few times but now it just won't switch on. i also have problems with my screen as there's some noises to the screen (i hope you get me) and when i turned the camera on, it was as if the whole screen is shaking. i'm currently studying in the middle east and there's no apple store here so i cannot use my warranty. i will only be back home in summer. please help me what should i do to at least switch my iphone on first.

I did a little bit of experimenting. I have an iPad original versions myself. I took it out of the box knowing that I haven used it in months and I expected the battery to be dead and sure enough the battery was as dead as I imagined it would be. For the first 30 minutes I experienced exactly what you are experiencing, but then the iPad suddenly powered up on its own (like it does when plugged into the charger) and I am using it now to type this response to you.
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I get so tired of having my iphone shut down on me mid-conversation. My screen is black and up to my ear; my phone is in my purse while I'm talking on my blue tooth and also has a black screen; or my phone is on my hip with a black screen while I talk with my earphones. How in the heck I am going to READ a low batter indicator on my phone behind a black screen? That information would be very helpful if I weren't on my blue tooth. Actually, that 2% low battery notification would very helpful to me if my phone weren't up to my ear with a black screen. Why can't they put a simple audible low battery indicator on the phone?

" How in the heck I am going to READ a low batter indicator on my phone behind a black screen?"
You cannot.
" Why can't they put a simple audible low battery indicator on the phone?"
They can. They have simply chosen not to do so.

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As the title says, I get no little blue rectangle warning at either 20% or 10%.
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Hi All,
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Taking my iPhone to an authorized apple service center does really works in this case..????
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thank you for typing on apple community
try to reset your phone
step 1:
hold the home phone and the power button for 10 seconds
and turn it back on
step 2;
if step 1 don't work back up and restore your iPhone, iPad, or iPod touch using iCloud or iTunes - Apple Support
step 3
go under setting
go to general
go to reset
and go to erase all content and settings
follow that step
itll erase everything but if you do step 2 itll be saved... and itll show you how to back up also

My iphone is saying it is charging (has the low battery symbol when i turn t no) but i have waited about 2 hours and it hasnt turned on. what should i do?

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Hi there ella_dunne,
You may find the troubleshooting steps in the article below helpful.
iPhone: Hardware troubleshooting
http://support.apple.com/kb/ts2802
Will not turn on, will not turn on unless connected to power, or unexpected power off
Verify that the Sleep/Wake button functions. If it does not function, inspect it for signs of damage. If the button is damaged or is not functioning when pressed, seek service.
Check if a Liquid Contact Indicator (LCI) is activated or there are signs of corrosion. Learn about LCIs and corrosion.
Connect the iPhone to the iPhone's USB power adapter and let it charge for at least ten minutes.
After at least 30 minutes, if:
The home screen appears: The iPhone should be working. Update to the latest version of iOS if necessary. Continue charging it until it is completely charged and you see this battery icon in the upper-right corner of the screen . Then unplug the phone from power. If it immediately turns off, seek service.
The low-battery image appears, even after the phone has charged for at least 20 minutes: See "iPhone displays the low-battery image and is unresponsive" symptom in this article.
Something other than the Home screen or Low Battery image appears, continue with this article for further troubleshooting steps.
If the iPhone did not turn on, reset it while connected to the iPhone USB power adapter.
If the display turns on, go to step 4.
If the display remains black, go to next step.
Connect the iPhone to a computer and open iTunes. If iTunes recognizes the iPhone and indicates that it is in recovery mode, attempt to restore the iPhone. If the iPhone doesn't appear in iTunes or if you have difficulties in restoring the iPhone, see this article for further assistance.
If restoring the iPhone resolved the issue, go to step 4. If restoring the iPhone did not solve the issue, seek service.
Issue not resolved
My issue is still not resolved. What do I do next?
Contact Apple Support.
-Griff W.

Please help me..?! My iphone 4 is low battery so i'm charging for 8 hours and i turn on it..But the iphone 4 can't turn on..!! Please help me..!!

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Try
Reset: Hold down the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears. Note: You will not lose any data

Iphone 5s: surprise shutdowns at lower battery %

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