Real life battery times...

Discussion in 'MacBook Pro' started by legreve, Mar 31, 2011.

  1. legreve macrumors regular

    legreve

    Joined:
    Nov 22, 2010
    Location:
    Denmark
    #1
    Im wondering how much the calibration actually means to the longevity of the battery.
    I admit I didn't go the full 5 hours after it went into sleep from lack of power. More like 2 hours or so, and then charged it up again.

    But the fact remains now that I only get around 4 hours of usage, and this is when only browsing on the forums while listening to iTunes with headset connected.

    What sort of battery time are you guys getting?

    Should I just bite the dust and do a proper calibration this weekend?

    Or could this be attributed to a bad battery?

    Atleast... 50% of ideal battery time is not acceptable to me :) So I'll do whatever it takes to get back to max.
     
  2. Neil1138 macrumors regular

    Joined:
    Jan 21, 2008
    #2
    Experiencing the same. I've tried replicating the 7 hours (by browsing text only sites on low screen brightness, no background apps, integrated graphics) and best I can do is near 5 hours. I don't need a link to a battery FAQ, I know what I need to know: 7 hours is a joke
     
  3. Jim Campbell macrumors 6502a

    Jim Campbell

    Joined:
    Dec 6, 2006
    Location:
    A World of my Own; UK
    #3
    Hmm. After reading this last night -- where my battery fairly consistently reports 7hrs on constant wifi internet/e-mail usage -- I decided to try a heavier load, so I started work with the MBP on battery instead of mains.

    I got 2.5 hours, with wifi on constantly streaming radio, FTP running up and down, reading and writing files to a bus-powered external drive on the FW port, alternating use of Illustrator and Photoshop CS5, with the laptop screen on medium brightness and driving a 21" Cintiq as the main monitor.

    I think that's pretty respectable, TBH!

    Cheers

    Jim
     
  4. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #4
    Calibration doesn't affect your battery health. It only makes the reporting more accurate. This should answer most, if not all, of your battery questions:
     
  5. sbbluewater macrumors member

    Joined:
    Mar 2, 2011
    #5
    7 to 7-1/2 hours for web browsing, gpu set to integrated, screen at 50% or less brightness. Sometimes I run I-Tunes as well.
     
  6. iCandii macrumors member

    Joined:
    Jul 7, 2010
    #6
    I get between5-7hrs dep on what im doing. If I'm gonna sit and just type junk I'll turn wifi off to conserve energy
     
  7. superericla macrumors 6502

    Joined:
    Sep 27, 2010
    #7
    I usually get 7-8 hours when doing light web browsing. I just have automatic graphics switching on, screen brightness at 50%, and keyboard brightness on 50% as well.
     
  8. WillEH macrumors 6502a

    WillEH

    Joined:
    Feb 8, 2011
    Location:
    United Kingdom
    #8
    I'm always getting between 95%-100% battery. It changes, sometimes 95, sometimes 98, sometimes 100. :apple:
     
  9. markeemarc21 macrumors newbie

    markeemarc21

    Joined:
    Jun 13, 2009
    #9
    I normally get around 8-9 hours of just internet browsing. I have 50% brightness and i turned off the keyboard illumination. It'll go down to around 6-7 when i download documents and what not but after it's done, it'll shoot back up to around 8-9. Not too shabby...
     
  10. lavrishevo macrumors 68000

    lavrishevo

    Joined:
    Jan 9, 2007
    Location:
    NJ
    #10
    Where do you do this again?
     
  11. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #11
    If you're referring to selecting the integrated GPU, from the Battery FAQ I posted earlier:
     
  12. lavrishevo macrumors 68000

    lavrishevo

    Joined:
    Jan 9, 2007
    Location:
    NJ
    #12
    Thanks.
     
  13. cactus33 macrumors member

    Joined:
    Apr 1, 2011
    #13
    I get 7-9 hours while typing & light web browsing etc.:D


    Buttt... only 1-2 hours when gaming.:mad:
     
  14. cuestakid macrumors 68000

    Joined:
    Jun 14, 2006
    Location:
    San Fran
    #14
    I am in the 3-5 hr range when on wireless, full brightness and several tabs open with itunes and a couple other apps open.

    That 7 hrs is a tad misleading.

    on a related note, I am noticing that the fans are a tad noisier when they get working.
     
  15. 100Teraflops macrumors 6502a

    100Teraflops

    Joined:
    Mar 1, 2011
    Location:
    Elyria, Ohio
    #15
    I happy with my time off the charger. I average 6 hours, but I am not putting the machine through its paces. If I import photos or have multiple apps running, then battery life decreases appropriately. I have not experienced less than five hours off the charger. My laptop is new and the battery has nine cycles. The real test is to see how the battery holds up after two years or more. :)
     
  16. onthecouchagain macrumors 604

    onthecouchagain

    Joined:
    Mar 29, 2011
    #16
    I get about 6-7 hours doing mild stuff like browsing, WiFi on, some writing, iTunes running most of the time, and maybe iChat running once in a while too.

    What is everyone's max battery capacity? (Find out in About this Mac... More Info... Power tab on the left... "Full Charge Capacity (mAH)")

    Mine reads: 5644. I'm on the low end 13" MacBook Pro early 2011.
     
  17. iMackPro macrumors 6502

    Joined:
    Mar 31, 2011
    #17
    What kind do you have? MUST be a 13 inch. theres just no way youre doing this on a 15. unless you have a 17? and even then thats very very impressive.

    what are your specs as well?
     
  18. iMackPro, Apr 2, 2011
    Last edited: Apr 2, 2011

    iMackPro macrumors 6502

    Joined:
    Mar 31, 2011
    #18
    This is what my coco app is telling me, should i be making a trip to the app store? or is this just in need of Re-calibration ? TIA! Cheers!

    EDIT: its telling my im fully charged at 99%
     

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  19. dusk007 macrumors 68040

    dusk007

    Joined:
    Dec 5, 2009
    #19
    99% is totally normal it won't reach 100% unless you run it down 20% and load again.

    I have a 2010 15" and the 8-9 h are ridiculous and only possible with min brightness or close to and doing almost nothing. Real life is around 4-5h. Also most of the time i run on battery I do need full birghtness because I am usually outside in the sun. Sittings idle with full brightness means 6-7h but doing anything at all like switching apps every few seconds, spaces, typing the power usage goes up by 30-40% immediatly.
     
  20. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #20
    That's not true. It can recharge to 100% if you drop it to 92% first. Read the Battery FAQ I posted for an explanation.
     
  21. Jim Campbell macrumors 6502a

    Jim Campbell

    Joined:
    Dec 6, 2006
    Location:
    A World of my Own; UK
    #21
    Worth noting, however, that Apple has attracted praise from the tech press over the last year or so for using a more 'real world' set of tests to arrive at a battery life figure than many other laptop manufacturers.

    Cheers

    Jim
     
  22. AFPoster macrumors 65816

    Joined:
    Jul 14, 2008
    Location:
    Charlotte, NC
    #22
    Just browsing & e-mails and excel / word I get around 5 hours. Intense stuff I'm around 3. I'm using the 15" high-end MBP
     
  23. Derango, Apr 12, 2011
    Last edited: Apr 12, 2011

    Derango macrumors regular

    Joined:
    Feb 25, 2011
    #23
    I've done 7+ hours. Highest was around 10 but I can't recall if that was plugged in or not for a little bit. Mid screen brightness, integrated graphics, mostly just web browsing (facebook, random sites (no flash games or anything)) and IM chatting. 2011 high end 15" with the high res screen.

    Granted I'm not running Photoshop or anything on battery power, but you CAN get the advertised battery life.
     
  24. LunaC macrumors member

    Joined:
    Feb 26, 2011
    #24
    In spite of what people seem to say about the new MBP, I get about the same battery life with same usage on my MBP17 2.3 as I do on my late 2009 17 with a C2D 2.8....considering the CPU power difference, that is a-ok in my book.
     
  25. Srirama macrumors member

    Joined:
    Dec 4, 2010
    Location:
    Chennai
    #25
    I own a 13 inch macbook pro 2010 version.
    i get around 6 to 6 1/2 hours on web browsing and maybe a bit of itunes,with brightness turned down to 1/3rd and no keyboard backlighting.
    I'm wondering if the number would go up,if I move closer to the router,right now it's situated more than 8 metres away,with a lot of obstructions in the way, a couple of walls.
    on no wifi,no bluetooth and brightness turned way down,playing a dvd rip,i'd get around 5 1/2 hours.
    If i turn off everything,only having Coda open doing some coding i get around 8 hours.
    If i keep it idle,with no applications running,only then would it show 10 hrs remaining LOL. :p
    Also battery health is at 92% with around 65 cycles,is that normal?
     

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