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Crap MBP battery life (intermittent)

  • 13-03-2012 11:13pm
    #1
    sarkozy
    Registered Users, Registered Users 2 Posts: 1,476 ✭✭✭


    MacBook Pro unibody 2011. gfxCardStatus installed. Restarted SMC and PRAM. Flash block preventing flash unless I want it. Only running Firefox. Intermittently and inexplicably only getting 2.5 hours battery life and the battery is fine.

    Any suggestions?


Comments

  • #2
    Sad Professor
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators, Technology & Internet Moderators Posts: 22,693 CMod ✭✭✭✭Sad Professor


    Check Activity Monitor (in Applications > Utilities) and see if there's any rogue processes eating up the CPU.


  • #3
    Colonel Panic
    Registered Users, Registered Users 2 Posts: 2,040 ✭✭✭Colonel Panic


    Firefox is more than likely the issue. Basically it's a garbage resource hog browser. I consistently get 6 hours with Safari or Chrome, Mail, iTunes and IM apps on a 15" 2011 MBP without gfxCardStatus installed.


  • #4
    muggyog
    Registered Users, Registered Users 2 Posts: 725 ✭✭✭muggyog


    Have you ever calibrated it?


  • #5
    Colonel Panic
    Registered Users, Registered Users 2 Posts: 2,040 ✭✭✭Colonel Panic


    You don't need to do that with unibody Macbook Pros
    The page you linked wrote:
    Portables with built-in batteries
    Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article. These computers use batteries that should be replaced only by an Apple Authorized Service Provider.

    MacBook

    MacBook (13-inch, Late 2009) and later
    MacBook Air

    MacBook Air, all versions
    MacBook Pro

    MacBook Pro (13-inch, Mid 2009) and later
    MacBook Pro (15-inch, Mid 2009) and later
    MacBook Pro (17-inch, Early 2009) and later


  • #6
    opinion guy
    Closed Accounts Posts: 11,001 ✭✭✭✭opinion guy


    I fear my own battery may be dying on 2009 MBP
    Had it fully charged today and took to other room and was fully discharged in under 2 hours
    :/
    Also I don't remember it warning me about a low battery
    :/

    According to coconut, which I only installed recently, my battery max charge has actually increased as so:
    4/3/12 4588 mAh
    8/3/12 4633 mAh
    14/3/12 4726 mAh

    Full capacity at birth was 5450mAh and it has had 914 battery load cycles.

    How is this possible ? Is it planning to explode ?!:eek:

    Note to self...run timemachine today


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