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  1. #1
    Do I Have a Bad 2009 Macbook Pro 15" Battery?
    harrya's Avatar
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    Macbook Pro 15" June 09
    Do I Have a Bad 2009 Macbook Pro 15" Battery?
    Recently purchased two new 2009 Macbook Pro 15" computers. One has dual graphics and one is the base model with integrated graphics only.

    Problem is that the higher end model has a significantly lower battery life when used in an identical manner.....4 hours versus 7 hours. I have set the graphics card on the higher end model to use the integrated graphics only so in effect they are running as the same machine. I know the model with dual graphics capability has twin cooling fans versus one fan for the lower end model.

    Do you think the fan, faster processor or 7200rpm drive could account for lower battery life or do you think the battery could be faulty?

  2. #2
    Do I Have a Bad 2009 Macbook Pro 15" Battery?
    iggibar's Avatar
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    Apr 20, 2009
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    Mac Pro 4.1 15" MBP. 13" MBP. 17" PB. Power Mac G5. Galaxy Note 4 160gb*
    Those can definitely be affecting your battery life.

  3. #3
    Do I Have a Bad 2009 Macbook Pro 15" Battery?
    harrya's Avatar
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    Jun 18, 2009
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    Florida/Texas
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    Macbook Pro 15" June 09
    I figured they could affect battery life but I was originally getting close to 7 hours on the dual graphics model. I have 9 cycles on my battery. Can they go bad or loose their ability to hold a charge that quickly?

  4. #4
    Do I Have a Bad 2009 Macbook Pro 15" Battery?
    iggibar's Avatar
    Member Since
    Apr 20, 2009
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    Mac Pro 4.1 15" MBP. 13" MBP. 17" PB. Power Mac G5. Galaxy Note 4 160gb*
    Yes, it is possible for a battery to go bad very, because not all batteries work 100% all the time. I would take it to the apple store just to see what they might say.

  5. #5
    Do I Have a Bad 2009 Macbook Pro 15" Battery?
    harrya's Avatar
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    Jun 18, 2009
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    Macbook Pro 15" June 09
    I am going to take to Apple store as I'm now only getting 2 hours battery time just checking email and surfing the web.

  6. #6
    Do I Have a Bad 2009 Macbook Pro 15" Battery?
    Tarek's Avatar
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    Sep 18, 2008
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    15" MacBook Pro 2.4 GHz Intel Core i5
    Quote Originally Posted by harrya View Post
    Recently purchased two new 2009 Macbook Pro 15" computers. One has dual graphics and one is the base model with integrated graphics only.

    Problem is that the higher end model has a significantly lower battery life when used in an identical manner.....4 hours versus 7 hours. I have set the graphics card on the higher end model to use the integrated graphics only so in effect they are running as the same machine. I know the model with dual graphics capability has twin cooling fans versus one fan for the lower end model.

    Do you think the fan, faster processor or 7200rpm drive could account for lower battery life or do you think the battery could be faulty?
    I'm pretty sure the battery isn't faulty, of course a notebook running twin fans, faster processor, and higher graphics card drains out the battery quicker. But since you just bought it, go get it checked under warranty. Oh wait, you're already going to do that.

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