davidch
Level 1 (5 points)

Q: iPhone 4S 5.0.1 Update Improves Battery w/ Settings Reset

After installing the update make sure you reset all setttings. I have done a few updates now  and  have had much better  sucess after settings reset all. Standby drain has been virtually eliminated from 2-4% hr before update. It is located in settings/reset//reset all settings. You loose some wifi and desktop settings, but data, apps, etc remain intact.

Posted on Nov 11, 2011 5:33 PM

by davidch,Solvedanswer
davidch davidch
Level 1 (5 points)
A:

sfiomenb,

 

that is probably a good idea. tell them the steps you have gone through. sorry it didn't work out. i am hearing that the are working extremely hard on this and should have annother update shortly that would not require my process. i am not sure that it would fix you issue which maybe the actual battery.  good luck

Posted on Nov 16, 2011 6:38 PM

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davidch

Q: iPhone 4S 5.0.1 Update Improves Battery w/ Settings Reset

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  • by Dave4282,

    Dave4282 Dave4282 Dec 7, 2011 8:33 AM in response to davidch
    Level 1 (0 points)
    Dec 7, 2011 8:33 AM in response to davidch

    Has anybody performed David's method while on IOS 5.0 and NOT 5.0.1?  I need to know if I should stay on IOS 5.0 and do the reset, or if I need to upgrade to 5.0.1 first.  I'd prefer not to upgrade to 5.0.1 if I can avoid it, with all the bad I've heard about it. 

  • by mlh212,

    mlh212 mlh212 Dec 7, 2011 8:52 AM in response to davidch
    Level 1 (0 points)
    Dec 7, 2011 8:52 AM in response to davidch

    IMG_0004.PNG

    Do u think my battery is terrible? i've changed a new ip4s from Apple store, it's not better than the previous one.

    and i actually dont use the wifi or 3G very much, or even calling time is about 10'.

    my first ip4s installed iOS 5.01 already when i got it, but it still had battery problem.

    should i try as David adviced ?

     

    Message was edited by: mlh212

  • by walter.penn,

    walter.penn walter.penn Dec 7, 2011 9:10 AM in response to walter.penn
    Level 1 (0 points)
    Dec 7, 2011 9:10 AM in response to walter.penn

    OK, I finally plugged it in for the first time since following davidch's advice.  Just before plugging in I had:

     

    • Usage 5 Hours, 39 Minutes
    • Standby 2 Days, 23 Hours
    • 1% Battery Remaining

     

    That's about 1.29% battery used / hour, combined average of Usage and Standby.

     

    That's pretty good.

     

    Note that I'm 300 yards from an AT&T 3G tower and I have the latest model Airport Extreme providing 802.11n, so my battery life should show the best case.

     

    -Walter

  • by miteglia90,

    miteglia90 miteglia90 Dec 7, 2011 9:42 AM in response to davidch
    Level 1 (0 points)
    Dec 7, 2011 9:42 AM in response to davidch

    Hi davidch,

     

    I was saddened when i checked the thread and my inquiry wasnt answered :( but i understand that a lot of other folks also have questions.

     

    I'll summarize my questions which i think will offer relevant insights to all when answered:

     

    1. In Standby or using the phone: does leaving more apps in the multitasking bar burn more battery than leaving none open?

    Or no difference?

     Even if there's no wi-fi and the phone's locked but should iteven matter considering that the phone is on sleep mode?

     

    2. Also does the number of unclosed apps, enabled wifi,affect the battery drain even on standby? Or it should not?

     

    3. Is locking the home screen same as pushing the sleep/wakebutton where in the phone would go into sleep?

     

    4. As a best way of charging the battery, should I turn it offevery time I charge - or ON is OK?

    Related question is it best practice to charge the phone even if it’s not depleted yet or still more than 20%? Or itdoesn’t matter since it’s a Li-Ion battery?

     

    Please our experts here enlighten these few questions i would really appreciate.

     

    Thanks!!

    Michele

  • by sbailey4,

    sbailey4 sbailey4 Dec 7, 2011 10:02 AM in response to Dave4282
    Level 1 (29 points)
    Dec 7, 2011 10:02 AM in response to Dave4282

    Dave, Certainly you can try that. It does not hurt anything and is pretty quick (other then the battery drain and recharge). So give it a shot and if it does not help then perhaps you apply Apple "fix" of iOS 5.0.1.   Despite the bad publicity, that update did help a lot of folks with their battery issues. Of course use your judgement and if you rather not do the update to 5.0.1 then wait until 5.1 is released which should be soon. I will tell you the battery calibration alone helps the issue but DavidCH method is by far the best solution.

  • by garyfromdunfermline,

    garyfromdunfermline garyfromdunfermline Dec 7, 2011 11:17 AM in response to davidch
    Level 1 (0 points)
    Dec 7, 2011 11:17 AM in response to davidch

    I'm gonna try drain tonight and charge overnight and see what happens..so far...my usuage is below  - I've only had the phone a week and it seemed to start off okay - I would generally be a 'moderate' user, the odd app during day - bit of web surfing - but I got a LOT more out of iPhone4...as a precaution I'm popping to the genius bar on Friday..

     

    photo.PNG

  • by davidch,

    davidch davidch Dec 7, 2011 11:42 AM in response to miteglia90
    Level 1 (5 points)
    Dec 7, 2011 11:42 AM in response to miteglia90

    miteglia90 wrote:

     

    Hi davidch,

     

    I was saddened when i checked the thread and my inquiry wasnt answered but i understand that a lot of other folks also have questions.

     

    I'll summarize my questions which i think will offer relevant insights to all when answered:

     

    1. In Standby or using the phone: does leaving more apps in the multitasking bar burn more battery than leaving none open?

    Or no difference?

    Even if there's no wi-fi and the phone's locked but should iteven matter considering that the phone is on sleep mode?

    it really depends on the specific app.  most gneral apps (non network type) do not affect battery even while remaining in the bar.  they typically go into a sleep mode when not being used.  however, network dependent apps like skype, pandora, browser, mail etc can continue a certain amount of activity and accordingly affect the battery drain whether in standby or using the phone.

     

    2. Also does the number of unclosed apps, enabled wifi,affect the battery drain even on standby? Or it should not?

    again, it really depends on the app.  certain network type apps may continue to comminicate depending on.  if wifi is on, those apps will use it first.  if not they will go to the 3G network.  typcially, wifi uses less power than 3G.

     

    3. Is locking the home screen same as pushing the sleep/wakebutton where in the phone would go into sleep?

    not exactly.  the phone can be locked and still be awake (i.e. waiting for you to unlock).  however, if it is not unlocked after some time period of time, it does go into a reduced power or sleep type mode.  in additon to screen blank, i think the system reduces power to the UI wait for input processes, etc.  network (i.e wfi and 3g) are still available to network type apps mentioned above, push notifications, etc, but i think in a more by request reduced power function (similar to the wake on sleep function of macs).

     

    hope that helps and sorry for missing you before...

  • by Dave4282,

    Dave4282 Dave4282 Dec 7, 2011 12:58 PM in response to sbailey4
    Level 1 (0 points)
    Dec 7, 2011 12:58 PM in response to sbailey4

    Excellent, thanks for the response sbailey!  I feel a little better about trying this on 5.0. 

  • by sflomenb,

    sflomenb sflomenb Dec 7, 2011 1:12 PM in response to davidch
    Level 1 (40 points)
    Dec 7, 2011 1:12 PM in response to davidch

    I'm extremley ****** off! My battery had the best day ever yesterday, getting 5.5 hours of usage. Now, it's been the WORST it's even been!

     

    At 10:30, my battery was at 77% with 1 hour, 5 minuets of usage.

     

    At 11:15 (without any actual usage from me) my battery dropped to 69% with 1 hour, 14 minuets of usage

     

     

    Then came the worst part:

    At 2:30, my battery was at 50% with somehow 1 hour, 55 minuets of usage!

     

    4 hours and 27% lost without any "actual" usage.

     

    Really upset.

    Battery is currently 35%

    Usage: 2 hours, 25 minuets

    Standby: 8 hours, 42 minuets

     

    This is terrible

  • by davidch,

    davidch davidch Dec 7, 2011 1:30 PM in response to miteglia90
    Level 1 (5 points)
    Dec 7, 2011 1:30 PM in response to miteglia90

    miteglia90 wrote:

     


    4. As a best way of charging the battery, should I turn it offevery time I charge - or ON is OK?

    Related question is it best practice to charge the phone even if it’s not depleted yet or still more than 20%? Or itdoesn’t matter since it’s a Li-Ion battery?

     

    Please our experts here enlighten these few questions i would really appreciate.

     

    Thanks!!

    Michele

     

    (oops, looks like i missed #4)   it is recommended that when you first get your iPhone you charge full (if not full already), then discharge fully and then do a full recharge.  this allows the software to calibrate correctly with the battery.  it is then recommended that you calibrate you battery routinely every few months (fully discharge and fully recharge).  other than that you should be able to charge and recharge as you see fit.  this is not an issue with the Li-Ion battery (like the Ni-Cad batteries of past).  it is merely away for the software to recalibrate with the storage capabilities of the battery.

     

    ihmo, it seems that incorrect or corrupt calibration of the battery is the cause of standby drain problem and the basis of my process.  by resetting all the settings, you clear out any corrupt settings or prefs.  then by recalibarting everything is set as it should be...  my hypothesis is that the original iOS 5.0 build had a bad process that incorrectly calibrated or interpreted the battery incorrectly (i.e. saw that battery capacity as less than it actually was and adjusted drain accordingly)...  the 5.0.1 update fixed that bad process, but the corrupted settings/prefs were still there.  by clearing all that out and starting over everything works correctly again...  i also think carrying over those prefs from a previous backups (from a different phone calibration, etc) could potentially also cause the problem.

  • by davidch,

    davidch davidch Dec 7, 2011 1:44 PM in response to sflomenb
    Level 1 (5 points)
    Dec 7, 2011 1:44 PM in response to sflomenb

    sflomenb wrote:

     

    I'm extremley ****** off! My battery had the best day ever yesterday, getting 5.5 hours of usage. Now, it's been the WORST it's even been!

     

    At 10:30, my battery was at 77% with 1 hour, 5 minuets of usage.

     

    At 11:15 (without any actual usage from me) my battery dropped to 69% with 1 hour, 14 minuets of usage

     

     

    Then came the worst part:

    At 2:30, my battery was at 50% with somehow 1 hour, 55 minuets of usage!

     

    4 hours and 27% lost without any "actual" usage.

     

    Really upset.

    Battery is currently 35%

    Usage: 2 hours, 25 minuets

    Standby: 8 hours, 42 minuets

     

    This is terrible

    sounds like your phone has "personality"... just when i thought we had you fixed...

  • by garyfromdunfermline,

    garyfromdunfermline garyfromdunfermline Dec 7, 2011 1:50 PM in response to davidch
    Level 1 (0 points)
    Dec 7, 2011 1:50 PM in response to davidch

    So far my stats tonight are

     

    Battery at 9%

     

    usage 4hrs 50

    Standby 22 hours

     

    What do u guys make of this??

  • by davidch,

    davidch davidch Dec 7, 2011 1:53 PM in response to garyfromdunfermline
    Level 1 (5 points)
    Dec 7, 2011 1:53 PM in response to garyfromdunfermline

    garyfromdunfermline wrote:

     

    So far my stats tonight are

     

    Battery at 9%

     

    usage 4hrs 50

    Standby 22 hours

     

    What do u guys make of this??

     

    that looks normal to me

  • by garyfromdunfermline,

    garyfromdunfermline garyfromdunfermline Dec 7, 2011 1:56 PM in response to davidch
    Level 1 (0 points)
    Dec 7, 2011 1:56 PM in response to davidch

    Thanks, I did seem to drop quicker on 3G browsing but tonight I've been using wifi and ita been running great, in fact 25% has lasted me 1 3O mins on browsing and I'm still at 7%

  • by sflomenb,

    sflomenb sflomenb Dec 7, 2011 1:59 PM in response to davidch
    Level 1 (40 points)
    Dec 7, 2011 1:59 PM in response to davidch

    davidch wrote:

     

    sflomenb wrote:

     

    I'm extremley ****** off! My battery had the best day ever yesterday, getting 5.5 hours of usage. Now, it's been the WORST it's even been!

     

    At 10:30, my battery was at 77% with 1 hour, 5 minuets of usage.

     

    At 11:15 (without any actual usage from me) my battery dropped to 69% with 1 hour, 14 minuets of usage

     

     

    Then came the worst part:

    At 2:30, my battery was at 50% with somehow 1 hour, 55 minuets of usage!

     

    4 hours and 27% lost without any "actual" usage.

     

    Really upset.

    Battery is currently 35%

    Usage: 2 hours, 25 minuets

    Standby: 8 hours, 42 minuets

     

    This is terrible

    sounds like your phone has "personality"... just when i thought we had you fixed...

    I don't know what to do anymore :'(

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