dawho
Level 1 (50 points)

Q: How I fixed my short battery life on iPhone 5, and ActiveSync problems at the same time.

For anyone still having activesync or battery problems I have a potential fix:

 

I've had two issues lately. 

 

First, my battery life was draining at an insane rate.  iPhone5 lasted about 3-4 hours before absolutely dead from a full charge.  LTE disabled, WiFi disabled, icloud turned off...about as power efficient as I could make it, and I was hardly using it at all.  I was losing 1% batt every 2-4 minutes. 

 

I solved this problem by removing my work account (Exchange Activesync) from my mail accounts.  Obviously I couldn't stay like that for very long, so after confirming it stemmed the battery issue, I tried to add it back.  Did a bunch of different methods and tests, and what ended up working for me was:

 

  1. Remove ALL accounts (Had Exchange, gmail, icloud)
  2. hard reset the phone. 
  3. After it came back up, I reset the Network Settings just for good measure. 
  4. In Mail control panel, make sure "Default Account" doesn't have an old mail account listed (option may be not even present if you've removed all accounts, but I was having issues earlier where even though I'd removed accounts, it kept listing them in the Default Account/Calendar sections
  5. Add the Account
  6. Open Mail
  7. It actually took a min or two to start populating data, I didn't think it had worked, so give it a few minutes.

 

My battery life issue seems to be fixed, and my ActiveSync account works again.  I've been off the charge for about 4h 40m now, and battery is at 90%, and that's with moderate usage on LTE.

 

Hopefully this helps out anyone having similar issues.  For what it's worth, I removed/readded my Exchange account several times and it never worked until I had removed all accounts (my iCloud account was the last one to be removed), so if possible, just remove everything.  I had already restored, DFU'd, and tried several other steps.  This was what worked for me.

 

I have NOT added my iCloud account back yet, but will be doing this now to see if any issues reappear.

Posted on Sep 25, 2012 10:16 AM

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dawho

Q: How I fixed my short battery life on iPhone 5, and ActiveSync problems at the same time.

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  • Helpful answers

  • by JohnnieOil,

    JohnnieOil JohnnieOil Sep 25, 2012 4:59 PM in response to dawho
    Level 1 (0 points)
    Sep 25, 2012 4:59 PM in response to dawho

    Thanks, I will give it a try

  • by deanhuff,

    deanhuff deanhuff Sep 25, 2012 6:25 PM in response to dawho
    Level 1 (5 points)
    Sep 25, 2012 6:25 PM in response to dawho

    I tried a reset and setup as new with no luck, now I'm trying a dfu reboot/restore as new.  Your instructions will be my next attempt.

  • by WisdomTooth,

    WisdomTooth WisdomTooth Sep 25, 2012 7:55 PM in response to dawho
    Level 1 (35 points)
    Sep 25, 2012 7:55 PM in response to dawho

    my mrs is doing this as we speak

    let you know.. thanks man

  • by dawho,

    dawho dawho Sep 25, 2012 8:02 PM in response to WisdomTooth
    Level 1 (50 points)
    Sep 25, 2012 8:02 PM in response to WisdomTooth

    Update.  I turned my iCloud services on one at a time. 

     

    When I turned Safari on my battery started dying again. Turned it back off, and all is well.

     

    Looks like, at least for me, Safari sync was the problem.

  • by dantracht,

    dantracht dantracht Sep 26, 2012 9:25 AM in response to dawho
    Level 1 (0 points)
    Sep 26, 2012 9:25 AM in response to dawho

    Dawho,

     

    What was your average battery drain with safari synch turned off?

     

    D

  • by JohnnieOil,

    JohnnieOil JohnnieOil Sep 26, 2012 10:00 AM in response to dawho
    Level 1 (0 points)
    Sep 26, 2012 10:00 AM in response to dawho

    Well here is my experience so far. First off I set up my iphone 5 as a new phone but still had huge battery issues when on LTE or 3G but is OK when at home on wi-fi

    I followed some suggestions, disabled safari on icloud, kept the min location apps running.

    I also did a sync again with itunes on my mbpro but backed it up to the laptop.

    Synced again.

    Charged phone overnite, removed from charger 6:00Am, have made a couple of calls, did emails, some web time, twitter etc and now at 11:00 AM on LTE the battery sits at 94% which actually just surprised me - a lot!

    Can't believe the icloud safari sync could be that much of an issue? which make me think it is a software issue with i6.0 so hopefully apple will accept this and release an update ASAP

  • by jweight4,

    jweight4 jweight4 Sep 26, 2012 11:44 AM in response to dawho
    Level 1 (2 points)
    Sep 26, 2012 11:44 AM in response to dawho

    Did this fix the push email problem as well.  Mine stopped working again after a couple of hours?

  • by ShermanC,

    ShermanC ShermanC Sep 26, 2012 11:38 PM in response to dawho
    Level 1 (5 points)
    Sep 26, 2012 11:38 PM in response to dawho

    I'm also experiencing fast battery drain on my iphone 5.

     

    I also agree it's kind of related to Safari sync.

     

    What I discovered was Safari's Reading list is trying to sync/download the articles but to no avail. It's just say "Waiting...".

     

    Anyone has similar issue?

  • by jjc118,

    jjc118 jjc118 Sep 27, 2012 6:14 AM in response to dawho
    Level 1 (0 points)
    Sep 27, 2012 6:14 AM in response to dawho

    I am experiencng rapid battery drain as well. Before checking the forums I have closed apps running in background, turned off LTE, turned off location services, turned off wi-if & turned off Bluetooth...my battery drained to 53% in 3 1/2 hours.

     

    This is my 1st personal iDevice so I do not understand some of the verbiage. 

     

    What is "disabled safari on icloud"? 

     

    I go to Setting - iCloud & I am not signed in

     

    I don't see anything in Safari Settings about iCloud

     

    Thank you in advance for your assistance

    Jennifer

  • by dantracht,

    dantracht dantracht Sep 27, 2012 6:24 AM in response to dawho
    Level 1 (0 points)
    Sep 27, 2012 6:24 AM in response to dawho

    My battery issues are improving, yet now I'm seeing that mail isn't pushing anymore.  Not as well anyway.  This is definitely a software issue, not a hardware issue.

  • by martmitch,

    martmitch martmitch Sep 27, 2012 12:05 PM in response to dawho
    Level 1 (0 points)
    Sep 27, 2012 12:05 PM in response to dawho

    thanks this has definately improved things!

     

    the privacy>location services and

    privacy>location services>system services

     

    is a good target for disabling options also for power saving

  • by deanhuff,

    deanhuff deanhuff Sep 27, 2012 4:06 PM in response to deanhuff
    Level 1 (5 points)
    Sep 27, 2012 4:06 PM in response to deanhuff

    I ended up exchanging for a new phone....hopefully this helps