4S shutting down at ~12% battery

Discussion in 'iOS 7' started by nitromac, Oct 8, 2013.

  1. nitromac macrumors 6502

    Jul 29, 2012
    Lately my 4S has been shutting down at around 12% of its battery life, then displaying the red empty battery screen when I try to start it up again. I've been on iOS7 since release, and this has been happening for the past week or so. Anyone else in the same boat?
  2. abidou macrumors newbie

    Oct 8, 2013
    I'm having the same problem, and things are getting worse: I completely lost the ability to turn WiFi on.
  3. Max(IT) Suspended


    Dec 8, 2009
    Try to recalibrate the battery discharging it completely and recharging till 100% for 2-3 times.
    Otherwise your battery could be defective or just too old
  4. Armen macrumors 604


    Apr 30, 2013
    Your Wifi issue has nothing to do with the battery.
  5. Troneas macrumors 65816


    Oct 26, 2011
    At the alternatives section.

    been some time since ive done this but if i remember correctly you must leave it completely drained for a couple of hours before charging it - with no interruptions - fully.
  6. abidou macrumors newbie

    Oct 8, 2013
    I suppose so, but both problems came with 7.0.2 update.
  7. Pravda macrumors 6502a


    Sep 30, 2008
    Have had the same issues with my 4S.
    My shut down at 8% battery. I did to a complete discharge and charge to 100%.
    Same happened the next day.
  8. albertxp06 macrumors regular

    Oct 11, 2011
    One more for battery issues. Starting with iOS 7, my battery has been acting weirdly. Sometimes it drops from 14% to 5% in a few seconds, sometimes the phone dies at 3%.

    Don't even try to tell me to recalibrate the battery. This didn't happen with iOS 6.
  9. maricc macrumors regular

    Oct 13, 2011
    Same happens to me, phone shows 3% battery then once I plug it in, it jumps to 21%
  10. R.Stoychev macrumors 6502a


    Dec 23, 2012
    Your battery could be defective or too old and its time for a change
  11. imhereareyou macrumors regular


    Aug 28, 2013
    It's not your battery. It is the update. Mine does the same thing now. Only if I try and make a call with 13% otherwise it is fine if I just text.
    I have the 5s
  12. v.kanniainen macrumors newbie

    Aug 19, 2010
    Same problems. Yesterday my phone died at 13%
    Same weird thing was in beta 2 or 3. Hopefully they fix this issue in future update.
  13. Steeley macrumors regular


    Sep 10, 2011
    I had this issue and I found out it was caused by using my iPad 3 charger on it instead of the charger that came with the 4S. I reckon it must have a different amperage or something that makes it charge too quickly.
  14. squeakr macrumors 68000


    Apr 22, 2010
    IPad chargers at 10W chargers and iPhone/iPod chargers are 5W, so yes it will charge faster.
  15. Imac Sam, Oct 9, 2013
    Last edited: Oct 9, 2013

    Imac Sam macrumors 6502

    Imac Sam

    Oct 9, 2011
    Harrisonburg, Virginia
    Same issue here, having this problem on 4 different Iphone5 in the family. I have a friend with an iphone 5s that appears not to have the problem. The weird thing is that we both have the same things such as location services and background apps turned off. But yet my battery will drop from 30 to 15% instantaneously sometimes. i have cycled the battery 3 times in a row and still nothing. I have also done it the other iphones with the same results. I think the iOS7 algorithm for the battery meter is either grossly or "purposely" mis-representative, in regards to the iphone5.

    I hope 7.0.3 will fix these issues.
  16. lo100469 macrumors member

    Sep 26, 2013
    Hello all,
    A 10W charger will not charge the Iphone faster. The Iphone dictates how much energy to take from the charger, anything above 5W will not charge faster (same as you charge a macbook air with a macbook pro charger). I have similar issues with my IP4s that is a couple of years old. With 350 battery cycles, and 80% of the original battery capacity remaining, I ordered a new battery. You may be in a similar situation.
  17. squeakr macrumors 68000


    Apr 22, 2010
    Yes it will charge faster as the device gets more amperage delivered from the iPad charger. The same happens conversely that you can charge an iPad with iPhone charger but it takes longer and if using it may only maintain at best (needs to really be idle and possibly off to actually charge). Same holds true for the 65 w and 80 w MacBook chargers. The devices will only take the voltages they need but will get more amperage. This is why car chargers that deliver 2 A charge the iPhones faster.
  18. T'hain Esh Kelch macrumors 601

    T'hain Esh Kelch

    Aug 5, 2001
    Both me and my girlfriend has had this problem on our 4 and 4S respectively, after the update to iOS7.
  19. AppleMacNerd macrumors regular

    Jan 23, 2013
    United Kingdom
    my 4s usually shuts down around 7% on iOS7 since beta to 7.0.2
  20. jonasdamn macrumors 6502a

    Mar 4, 2013
    I have charged my iPhone 5 with iPad and iPhone charger and it charged from 0% to 100% on same time, maybe +- 1minute.
  21. lo100469 macrumors member

    Sep 26, 2013
    The device will decide what amp it needs, of course if you charge an ipad with an iphone charger the iPad will not get the 2 amp or 10W it needs and therefor it will charge slower (or it will not even charge if you use it).
    Try to charge a macbook air with a 45, 60 or 85W charger, charging time will be about the same.
  22. squeakr macrumors 68000


    Apr 22, 2010
    I have done this and my wife's 13 inch definitely charges faster with my 15 inch charger. My iPhone also charges faster with the 2a car charger than the standard included wall charger. I haven't looked carefully at the iPhone but the MacBook circuit uses voltage regulation (this tells it how much voltage to draw) and over current limiting so it will charge faster with the higher amp chargers. It just depends on the circuit tolerances of the current over limiting triac (it doesn't select the amount of the current draw like you state but instead controls the over limit situation and protects the circuit from too dangerously high of current conditions). My wife's charges about 30 min faster with my 80 watt charger than with her 60 watt.

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