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Thread: Battery life

  1. #1
    Battery life

    Member Since
    Jul 09, 2013
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    Battery life
    Hi everyone I just purchased my MacBook pro 15 inch yesterday and I think there is a problem with it. The battery life is draining way too fast (about 1% per 5 mins). The brightness is on 4, the lit keyboard is off, only wifi is on. I have closed all programs running in the background. I dont know what is wrong- should I go to the store to return it and get another one? Please let me know!

  2. #2
    Battery life
    pigoo3's Avatar
    Member Since
    May 20, 2008
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    U.S.
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    31,458
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.7.5
    Quote Originally Posted by asigna View Post
    should I go to the store to return it and get another one? Please let me know!
    Try an SMC reset. If that doesn't work...yes...take it back.

    http://support.apple.com/kb/ht3964

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #3
    Battery life
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
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    26,205
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    1% every 5 minutes would indicate over 8 hours up time.
    Apple is only claiming "up to" 7 hours.

    Would suggest you use the computer through at least 2-3 battery cycles before considering that there may be something wrong.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  4. #4
    Battery life
    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    31,458
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.7.5
    Quote Originally Posted by bobtomay View Post
    1% every 5 minutes would indicate over 8 hours up time.
    Apple is only claiming "up to" 7 hours.
    Good one Tom!

    I've done this calculation before...and forgot about doing it in this case. Like you mentioned...1% battery drain every 5 min works out to be a total runtime on a single charge of 8+ hours (assuming a steady energy demand).

    Or (for the OP):

    - 1 hour = 12% battery charge used
    - 2 hours = 24% battery charge used
    - 3 hours = 36% battery charge used
    .
    .
    .
    - 8 hours = 96% battery charge used

    * Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

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