iPhone 5 Battery Life May Be Impacted Greatly by Cellular Signal Strength

Discussion in 'MacRumors.com News Discussion' started by MacRumors, Sep 26, 2012.

  1. macrumors bot

    MacRumors

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    #1
    [​IMG]


    Deep in its lengthy review of the iPhone 5, iLounge has performed an analysis on the battery life of the iPhone 5. The site tested the device under a number of conditions, including both cellular and Wi-Fi web browsing, voice calls, FaceTime calls, video recording, and video and audio playback.

    [​IMG]


    The phone performed fairly well but iLounge found battery life struggled when transferring cellular data or making voice calls, which they speculated was due to a weak signal:
    [​IMG]


    iLounge has the detailed results on its battery testing in its iPhone 5 review, but unsurprisingly, mileage will vary greatly depending on a number of factors including health of the battery, signal strength, screen brightness, and other considerations.

    Article Link: iPhone 5 Battery Life May Be Impacted Greatly by Cellular Signal Strength
     
  2. macrumors 6502a

    Joined:
    Aug 12, 2009
    #2
    Even doing "nothing" (phone is locked, etc.) on AT&T's 4G network (no LTE here yet) I've been losing 1-2% every few minutes. Once I switch to WiFi it goes back to normal. Hope this improves.
     
  3. macrumors 601

    Prof.

    Joined:
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    Location:
    Chicago
    #3
    Another reason why I'm waiting 'til the end of 2013 to get the iPhone 5S.
     
  4. macrumors 6502a

    wlossw

    Joined:
    May 9, 2012
    Location:
    Montreal, Quebec, Canada
    #4
    Battery life is definitely worse than my iPhone 4 for comparable usage. I am on Rogers in Montreal, quebec, and am often on 2-3 LTE bars.

    Hopefully the run time will improve as network coverage is expanded, and hopefully that will be soon.
     
  5. macrumors 604

    bushido

    Joined:
    Mar 26, 2008
    Location:
    Germany
    #5
    lol what is LTE? i'm getting 2 bars of edge at my parents place if i'm lucky :D cannot wait to go back to uni and the real world soon
     
  6. G51989, Sep 26, 2012
    Last edited: Sep 26, 2012

    macrumors 68030

    G51989

    Joined:
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    Location:
    NYC NY/Pittsburgh PA
    #6
    Newsflash.

    ALL Cellphones, even dumbphones are affected by signal strength, the weaker the signal, the phone has to boost power to the radio to maintain a connection.

    Turn on Airplane mode on pretty much any dumb or smart phone, you'd be amazed how long the battery lasts without having to power the radio, I did that with my old Samsung Replenish Android Phone after I got my S3, I think with airplane mode on, it lasted almost a week before it died, my old 3GS would go almost a week to.

    In other news, the pope is catholic.
     
  7. macrumors regular

    Joined:
    Oct 13, 2010
    #7
    Manufacturers love to BS the numbers

    Little over 4 hours seems pretty poor, but obviously you'd have to compare it to other devices. Maybe WiMax takes less power or something because there's no way I could kill my phone in 4 hours, even HBO 4g streaming I watched 3 hours and still had 40% one time.
     
  8. CIA
    macrumors 6502

    Joined:
    Jun 17, 2003
    #8
    This might explain my battery issue. While home ("4G" AT&T, not LTE area) I get full signal and the battery (now conditioned twice) works great finally.

    This past weekend I was hiking all day Sunday in a marginal coverage area and the phone barely lasted 6 hours.

    Home (good signal) it's gone 2 days now without needing a charge.
     
  9. macrumors regular

    Joined:
    Jan 20, 2009
    #9
    can't you see
    whats the point of LTE if
    you dont have a Battery
    will software fix this
    broken technology?
     
  10. macrumors 65816

    adcx64

    Joined:
    Nov 17, 2008
    Location:
    Cudi Zone
    #10
    This is my first iPhone, and I'm really satisfied with my battery life. Albeit I'm on WiFi most of the time, I managed 12 hours on and off. LTE somewhat degrades my battery life, but it is by no means bad. Props to Apple.
     
  11. macrumors 68020

    FSMBP

    Joined:
    Jan 22, 2009
    #11
    That's weird. Doesn't iPhone switch to cellular data when locked, regardless if Wi-Fi is enabled (when all background tasks are complete that is)?
     
  12. macrumors regular

    Joined:
    Oct 4, 2011
    #12
    Of course. The signal is displayed as weak when you are relatively far from the base station or subject to shadowing. At the same time, your cell phone has to transmit more power to upload any information, which leads to lower battery life.
     
  13. macrumors member

    Joined:
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    Location:
    AZ
    #13
    I've been exactly opposite. I switched from an iPhone 4 and with my use I was getting around 8 hours. Been approaching upwards of 15 with the iPhone 5. I do stream music and video via Airplay for around 50% of my daily use.
     
  14. macrumors 68020

    iapplelove

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    East Coast USA
  15. macrumors newbie

    Joined:
    Sep 3, 2007
    #15
    Faster things download, faster we'll put our phones down. Boom. Won't even notice.
     
  16. macrumors demi-god

    DirtySocks85

    Joined:
    Mar 12, 2009
    Location:
    Wichita, KS
    #16
    Is anyone surprised here? I've seen dramatic differences in battery life correlating to cell signal since I got my iPhone 3G in '08. For that matter, cell radios working harder significantly reduced batteries in old basic Nokia phones 15 years ago. Something about mountains being made of molehills comes to
    mind.
     
  17. macrumors 603

    kas23

    Joined:
    Oct 28, 2007
    #17
    Remember, it was the iPhone 4S that was plagued with battery problems, not the iPhone 4.
     
  18. TG1, Sep 26, 2012
    Last edited: Sep 26, 2012

    TG1
    macrumors 6502a

    TG1

    Joined:
    Feb 21, 2011
    #18
    Even my Razr Maxx will peter out around lunch time because our signal strength is absolutely atrocious at work (constantly waffles between 0 and 1 bar). Phones boost power whenever signal strength is poor. Nothing new here.
     
  19. macrumors 6502

    Joined:
    Mar 9, 2012
    #19
    My iPhone5 battery lasts much longer than my 4S. And my usage location, times and style has not changed.
     
  20. macrumors 604

    GFLPraxis

    Joined:
    Mar 17, 2004
    #20
    My battery life on my iPhone 5 has been incredibly poor. I even turned LTE off yesterday and fully charged it overnight, and I'm halfway through my work day and down to 47%. I have only done texting and Facebook messenger.
     
  21. macrumors 6502a

    Joined:
    Jun 19, 2009
    Location:
    United States
    #21
    My battery is fine. :p
     

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  22. macrumors 603

    kas23

    Joined:
    Oct 28, 2007
    #22
    Is this supposed to be a poem?
     
  23. macrumors 68000

    Joined:
    Jan 26, 2008
    #23
    This is nothing new folks. All cell phones have this issue. I don't understand the big deal.
     
  24. macrumors 6502a

    Joined:
    Aug 12, 2009
    #24
    The example I'm giving is when I am on cellular data (not on a WiFi network). At lunch, in a so-so coverage area, I lost 15% in an hour. It was locked in my pocket. At home, overnight, I lose about 3%.
     
  25. macrumors 603

    ECUpirate44

    Joined:
    Mar 22, 2010
    Location:
    NC
    #25
    Mine too. Much improved over my iPhone 4.
     

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