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iPhone 4s Battery Life?

2397393 Views 12,787 Replies Latest reply: Sep 26, 2012 8:49 AM by Jason L RSS
  • JesseZlatsin Level 1 Level 1 (15 points)
    Currently Being Moderated
    Oct 28, 2011 7:37 AM (in response to Scarface.)

    I think the issue may be related to wifi searching. When I am connected to a wifi network my battery drops 1% about every 25 minutes. However, as soon as I leave wifi my battery drops 1% about every 10 minutes. I've found that turning wifi off when I'm out of wifi range has significantly improved battery life. However, I should also note that I did not have to do this on my iPhone 4 on iOS 4. It appears to be a 4S/iOS 5 problem.

  • ahmetg Calculating status...
    Currently Being Moderated
    Oct 28, 2011 7:41 AM (in response to fatboyslick)

    Hi,

     

    i bought a new Iphone 4S 16GB last week, i have deactivated almost everything i could think of:

    - Bluetooth OFF

    - WiFi OFF

    - Location Services OFF

    - Full Bars on Carrier

    - Cellular Data OFF

     

    and plugged it off at 6 am in the morning with 100% charged and never used it until 12. In these 6 hours it dropped from 100% to 82% charge. Thats nearly 20% charge in 6 hours, if i interpolate that my standby time without any use will be 30 hours. Thats not acceptable, i've charged the iphone till now 3-4 times, so the battery should be at full capacity.

     

    Should i contact the apple support and let it check? I don't think this is normal

     

    Message was edited by: ahmetg, fixed typo

  • nosivadnomis Calculating status...
    Currently Being Moderated
    Oct 28, 2011 8:26 AM (in response to JesseZlatsin)

    I'm having the exact same issue with my 4S. No matter what I disable, I'm lucky to get a full day of usage out of it. It's somewhat ironic because as a 3GS user I was jealous of my wifes 4, now I've compared her 4 to my 4S it's clear the 4S has a terrible battery life.

     

    I do hope this can be resolved with a software update. Until it is I'll be advising friends to steer clear of the 4S if they're a heavy user.

  • ChrisStag Calculating status...
    Currently Being Moderated
    Oct 28, 2011 8:40 AM (in response to Scarface.)

    More details about my previous post.

    I have an AT&T 16G 4S. After shutting off all notifications, push email, location services etc starting out in the morning with a full 100% charge, removed from the charger within 90 min I was down to 92%, no calls, browsing, email, no use. Realizing that Siri only appears to run after holding home key to activate I never considered shutting it off, but I did and my battery usage, warm to the touch problems vanished. I understand that the different services do take power and other users have commented in detail about battery usage decrease with various things being shut down, but nevertheless this was the solution for me and I would invite others to try it also. It makes the difference to me (so I'll keep the phone) knowing I can control the constant tasking and eliminate it while I wait for Apple to come out with an update which I believe to be improper hardware management by the software IE shut off the hardware while not truly in use.

  • w7sg_599 Calculating status...
    Currently Being Moderated
    Oct 28, 2011 8:47 AM (in response to nosivadnomis)

    I talk on my 4Sa couple times a day, surf a lot, have WiFi enabled, Bluetooth enabled, in & out of Maps & other location services.  e-mail in enabled, but no push. 

     

    I can easily get 2 days & have stretched it to 3 days w/o recharge.  I don't leave it on all night. 

     

    I "reset warnings" when I synch'd.  Version 5.0 (9A334), AT&T 11.0.

     

    I post these details so folks that have similar usage & things enabled should have similar battery life?  The carrier may be a variable too.

  • Maccaguy Level 1 Level 1 (5 points)
    Currently Being Moderated
    Oct 28, 2011 9:01 AM (in response to Scarface.)

    I called Apple and explained my issues and they set up an appointment at the local Apple store's Genius bar. While on the way there, when I hit 3G range, my 4S became a hand warmer. My wife's identical phone was cool, but mine was very warm.

     

    Once in the store, I told the fellow about the battery life, shut downs/panic messages, and it being warm. He did a diagnostic test on it and the usage v. standby time had him blown away. He suggested completely reinstalling the firmware, setting the phone up as a new phone (not restoring from backup) and then using my iCloud account to restore my contacts. While we were doing this, he told me that he had done the same thing on his 4S, and it had helped his battery life considerably. He mentioned that the first upgrade to iOS 5 might include some battery life assistance, but that was speculation on his part and nothing official.

     

    One day in with a newly set-up phone, I'm at 85% battery life at lunch, where I was at about 70%. The phone isn't hot now, either. I may even switch Siri off for a while to see if there's any improvement there.

  • zerobrand Calculating status...
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    Oct 28, 2011 9:03 AM (in response to Scarface.)

    I exchanged my iphone 4s last week and didn't fix my terrible battery life

     

    what worries me the most, is how HOT the iphone gets, today again, I left the thing charging, and even though it was plugged in AND charging, the battery life was decreasing (100% to 90% when i checked), and it was really hot.

  • ChrisMc73 Level 1 Level 1 (10 points)
    Currently Being Moderated
    Oct 28, 2011 9:05 AM (in response to Scarface.)

    Ok, after two days of charging the phone down all the way to 0%, letting it die, and fully charging it back up, I had it on the charger all night, unplugged it at 7:30AM today, 100%, used it for a few text messages from 8:00AM - 11:00AM, and now its at 75%...mostly on standby, a 25% discharge 3 hours? Doesn't sound right?

  • franky932 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 28, 2011 9:16 AM (in response to Jameson!)

    Jameson! wrote:

     

    iPhone 4s 64gb black here.   EVERYTHING turned on.   Exchange email for work.   Gmail and Yahoo personal accounts.   PUSH on.   All available location services and notifications on.   Nothing shut off to save power.

     

    Current status:

    16m usage

    2hr 40min standby

    97% battery life remaining.

     

    Got the phone on day one of the release.   Set it up that evening and have done nothing but normal sync and app updates since.   I saw a significant improvement in battery performance after a few days.   Makes me wonder if something is happening between the phone and APPLE once you set it up, that settles out after a while.   Maybe a few users could just try doing nothing for a few days and see if the problems subside like mine did????   could it be that constant tinkering and restoring are making the problems linger on?

    good numbers...............until you began to use it......batt. will drop under apple specs.

  • MERMIDON Calculating status...
    Currently Being Moderated
    Oct 28, 2011 9:19 AM (in response to Scarface.)

    I turned off an Exchange Account Calendar that had many many alarms on it.  Phone Battery seems to be back to normal.

    I have ON

    Notification and Locations Service

    I Have Off

    Blue-Tooth and Wi-Fi

     

    Hope this helps, if you guys need a more langhthly description I will provide one.

  • franky932 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 28, 2011 9:31 AM (in response to Jameson!)

    Jameson! wrote:

     

    iPhone 4s 64gb black here.   EVERYTHING turned on.   Exchange email for work.   Gmail and Yahoo personal accounts.   PUSH on.   All available location services and notifications on.   Nothing shut off to save power.

     

    Current status:

    16m usage

    2hr 40min standby

    97% battery life remaining.

     

    Got the phone on day one of the release.   Set it up that evening and have done nothing but normal sync and app updates since.   I saw a significant improvement in battery performance after a few days.   Makes me wonder if something is happening between the phone and APPLE once you set it up, that settles out after a while.   Maybe a few users could just try doing nothing for a few days and see if the problems subside like mine did????   could it be that constant tinkering and restoring are making the problems linger on?

    JUST ON STANBY after recharge that the IP4S is like apple specs.(doing nothing)..........the minute you browe the web or talk on the phone.........

     

    than the stanby drops faster.........

  • franky932 Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 28, 2011 9:35 AM (in response to zerobrand)

    a hot battery will be never be like a new one (if it runs hot at least 4 times) , permently internal dammage.

     

    apple adress that in their guide.

     

    anyway it s under warranty.in a couples of month , return it.

    zerobrand wrote:

     

    I exchanged my iphone 4s last week and didn't fix my terrible battery life

     

    what worries me the most, is how HOT the iphone gets, today again, I left the thing charging, and even though it was plugged in AND charging, the battery life was decreasing (100% to 90% when i checked), and it was really hot.

  • TimothyW Calculating status...
    Currently Being Moderated
    Oct 28, 2011 9:37 AM (in response to Scarface.)

    iPhone 4S Poor Battery Performance SOLVED!!

     

    I found the issue with the iPhone 4S battery performance.

     

    I bought 2 iPhone 4S models on the first day. One for my wife and one for me. The strange thing was that mine would kill the battery in 4-6 hours and ran VERY WARM to the touch. My wife's phone worked great. It was cold to the touch. She would forget to charge it at night... and the battery performance was great... even better than our prior 3GS models.

     

    What was the difference? I have my phone connected to Exchange for my corporate email. But exchange is not exactly the problem. The issue is in Notification Center. For some reason, I had hundreds of calendar reminders that kept refreshing on notification center. Furthermore, the reminders would flicker between the time remaining and the start time for the event at such a fast rate that it could not be read...

     

    What is the solution? Go to Settings>Notifications>Calendar and disable Notification Center. You can still have the alert style set to Banners, or Alerts and you will still receive notices about your events, but it will not BUILD a summary in the Notification Center window. This is were the BUG exists. Oddly, this does not affect my iPad 2, but is an issue for iOS 5 on the iPhone (different builds, maybe?)

     

    So, it appears that Notification Center has an endless loop in collecting the calendar events from Exchange and this is burning up our 4S batteries. Once you stop the madness from Notification Center, your iPhone 4S will perform as advertised.

     

    Enjoy!

    Tim

  • Exias Calculating status...
    Currently Being Moderated
    Oct 28, 2011 9:47 AM (in response to Scarface.)

    I'm also experiencing a fast battery drain on my IPhone 4s.

     

    After a full charge, the phone dies within 6 hours with little to no activity.  I wanted to get to the bottom of this so I downloaded a free app to monitor the cpu usage on the phone, System Status Lite.  I have found that the phone will go into random cycles of high cpu usage with nothing running in the background, between 70-75%.  After disabling features 1 at a time, I have found that turning off calendar notifications drastically reduces the cpu usage  to a reasonable 4-8%.  After turning calendar notifications back on, cpu usage jumps right back to 70-75%.  I tried this many times for consistancy and it has held true so far.  I'll keep this notification off through the next full discharge cycle to monitor the battery life.  I'll provide an update with the results.

  • Nutes Level 1 Level 1 (0 points)
    Currently Being Moderated
    Oct 28, 2011 9:48 AM (in response to TimothyW)

    Thanks TimothyW.  I will try this.  I am in the same situation you are.  My wife has a white 4s and i have a blk 4s + iPad 2.  No issues with the battery at all on my iPad 2 but on my 4s it's draining fast!?!?!  My wife's is perfect!  And she does not use the calendar at all on it.  Me on the other hand....I have thousands of calendar work appointments refreshing all day long.  I hope this helps or works.  I did do the "reset all network settings" thing a few days ago and it did help a little but still draining faster than my 4 did.

     

    Thanks,

    Nutes

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