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    Battery only charging to 99%

    Discussion in 'Asus' started by fullsleeves, Sep 9, 2010.

  1. fullsleeves

    fullsleeves Notebook Consultant

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    While it doesn't seem like a big deal, I'm more curious as to why it just started happening. I have a relatively new U30Jc and in the last week the battery has stopped charging at the 99% mark. Is there a way to reset it or should I just forget about it?
     
    fullsleeves, Sep 9, 2010
    #1
  2. Yiddo

    Yiddo Believe, Achieve, Receive

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    This will be because you have ACPI Battery Driver installed. If you go into Device manager and click on battery you will see it there.

    It is a built in feature to prevent your laptop from constantly overcharging and topping up your battery and draining its life staight away.

    Mine goes between 96%-99% but never actually reaches 100% even though I have no wear at all on the battery.

    I believe the driver kicks in once the battery reaches around 95%.
     
    Yiddo, Sep 9, 2010
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  3. David

    David NBR Random Reviewer NBR Reviewer

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    Try letting your battery drain below 95% and then plug the power back in.

    You can also try to recalibrate your battery to see if that helps.
     
    David, Sep 9, 2010
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  4. Voodooi

    Voodooi AFK for a while...

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    This worked for me. I let my drain to 50% and on the next charge it reached max %.
     
    Voodooi, Sep 9, 2010
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  5. IM0001

    IM0001 Notebook Evangelist

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    Ya I was gona say do a good discharge below 50% then plug her back in. That should refresh her back to a full 100%
     
    IM0001, Sep 9, 2010
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