New Macbook Pro battery onlly lasts 3~4 hours

Discussion in 'MacBook Pro' started by jonomo, May 21, 2010.

  1. jonomo macrumors regular

    Joined:
    Apr 28, 2005
    #1
    I just got the new Macbook pro a few days ago and I noticed that the battery only lasts 3~4 hours.. nothing close to the 7~9 hours as advirtised.. what's going on?
     
  2. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #2
    Mine lasts 5 hours. What are you using the computer for?
     
  3. jonomo thread starter macrumors regular

    Joined:
    Apr 28, 2005
    #3
    Just normal email, MS office, normal office stuff..
     
  4. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #4
    Well, to tell you the truth, Apple cuts a few corners when they say the battery lasts 7 hours. It only lasts 7 hours when:

    Your doing NOTHING on the computer.
    The screen brightness is turned WAY down.
    The keyboard lighting is turned OFF.
    The HDD is spun DOWN.
     
  5. Ronnoco macrumors 68030

    Ronnoco

    Joined:
    Oct 16, 2007
    Location:
    United States of America
    #5
    I've been using my 15" i5 2.4GHz on battery power since 10:00pm (pacific) wirelessly surfing the web on my Airport Extreme about 20 feet away using Chrome (with the Intel integrated forced with gfxCardStatus v1.), checking email, playing a few songs on iTunes, display at about half brightness and the keyboard LED set to low...it is now 1:45am and my battery readout says 57% remaining (4hrs 10mins)...that would give me about 7+ hours...not too shabby...:D :apple:
    Edit: forgot to add - BlueTooth off...
     
  6. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #6
  7. yourfriendjames macrumors newbie

    Joined:
    Mar 15, 2006
    #7
    On my 17" i am getting a good 6+ hours after calibration. This is with the brightness set just 3 notches down while i web browse and photoshop. You should calibrate your battery the first week you use your new mac. I hope everything works out.
     
  8. Gorilla Power macrumors 6502

    Gorilla Power

    Joined:
    Mar 19, 2010
    #8
    I get over 5.5, even 6 hours on mine too. After calibration.
     
  9. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #9
    Is it a 13", 15" or 17" model? Because my 13" lasts just over 5 hours when surfing the web.
     
  10. ecks618 macrumors 6502

    ecks618

    Joined:
    Jun 1, 2006
    Location:
    NYC
    #10
    As other have said and will continue saying, do a battery calibration. I am in the process of doing mine and this damn laptop won't die. Been using my 13" since 10:15 with web/music/some steam and i still have 18% left over 6 hours later. Hoping to get close to 8 with the calibration.
     
  11. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #11
    Lol I don't see why you'd need to use your computer for more than 5 or 6 hours straight anyway. I've never used mine for more than 4 hours in a row.

    What about you guys?
     
  12. stjohnswell macrumors newbie

    Joined:
    Apr 19, 2010
    #12
    This one is good for 6-7 hrs surfing, which I'm happy with.

    Edit: Mostly in the evening, so screen brightness <50%
     
  13. Kevlar macrumors 6502

    Joined:
    Apr 5, 2004
    Location:
    Great White North
    #13
    That isn't correct. The testing conditions they claim for battery life is as follows:

    You can find it under note 1 at the bottom of this page http://www.apple.com/macbookpro/features.html
     
  14. HE15MAN macrumors 6502a

    HE15MAN

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    Sep 3, 2009
    Location:
    Florida's Treasure Coast
  15. mrsir2009 macrumors 604

    mrsir2009

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    Sep 17, 2009
    Location:
    Melbourne, Australia
  16. Morley7 macrumors member

    Joined:
    Mar 3, 2010
    #16
    I have read in another thread about some people who had the same issue. The problem was they swapped their hard drive from their old macbook to their new one. So the computer didn't recognize the newer battery or something to that effect. So maybe if you did that or if you cloned your drive then you could try a clean install of the OS.
     
  17. swish2351 macrumors 6502

    Joined:
    Feb 28, 2010
    Location:
    Michigan
    #18
    Lemme guess...
    You are watching videos and surfing non-stop, you are running your nVidia Graphics Chip 24/7 and never your Intel HD Graphics, and you are on medium-high to full brightness.

    Even having one of those reasons will put your battery that low.
     
  18. mrsir2009 macrumors 604

    mrsir2009

    Joined:
    Sep 17, 2009
    Location:
    Melbourne, Australia
    #19
    Lol dude, videos just own your battery. And if they're flash, even worse. Don't even think about getting more than 4 hours if your watching flash videos the whole time. In fact, 4 hours of watching vids is pretty lucky. :D
     
  19. dsprimal macrumors 6502a

    dsprimal

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    Mar 27, 2010
  20. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #21
    Read the FAQ link in post #6 in this thread.
     
  21. elpmas macrumors 68000

    elpmas

    Joined:
    Sep 9, 2009
    Location:
    Where the fresh snow don't go.
    #22
    mine usually lasts me all day...longest i had was 12hrs lol. if i watch movies, it'll drop me down to 4-5hrs of battery life, but if i increase my fan speed while watching movie it'll drop down to 3. right now mine has 26% battery life with half way brightness on my screen and keyboard backlight @ 4notches, i got 2hrs and 6mins left :D
     
  22. swish2351 macrumors 6502

    Joined:
    Feb 28, 2010
    Location:
    Michigan
    #23
    Nooo... Apple says it lasts 8-9 hours when...

    :mad:=You are wrong............:D=You are right.............:confused:You didn't include

    What 13" do you have? My new 2010 one lasts 11 hours with 50% brightness, Bluetooth OFF, WiFi ON, Internet, and Typing
     
  23. 7thMac macrumors 6502

    Joined:
    May 10, 2010
    #24
    Battery calibration will not give you more battery time. The calibration only makes the battery gauge more accurate.
     
  24. henry72 macrumors 65816

    henry72

    Joined:
    Jun 18, 2009
    Location:
    New Zealand
    #25
    That's not true~ However, is really depends on what you do
    Is crap to tell us you're doing Photoshop or Final Cut with full brightness

    So What did you do?

    PS: I can get about 8 hours

    Wifi
    iWork (Pages)
    iTunes with earphone
    Brightness 50%

    Apple ONLY promise the true, not like a lot of Windows laptop promise 5 or 6 hours with wifi off and brightness ever lower than 50% and still can't get 5 hours of battery life lol What a joke :D
     

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