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    Battery drops by a few % when leaving it in laptop

    Discussion in 'Lenovo' started by pepclub, Jul 16, 2009.

  1. pepclub

    pepclub Notebook Consultant

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    So this just started happening recently: My battery will drop a few percentage points say from 54% to 48% when leaving it plug into the laptop overnight or for a few hours while in hibernation mode. I ususally hibernate it instead of shutting it down, but a laptop shouldn't need any power while in hibernation mode.

    Any ideas about this?

    T61 + 6 cell batt (1.5 years)
     
    pepclub, Jul 16, 2009
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  2. bow3022

    bow3022 Notebook Enthusiast

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    When you put it in hibernation mode it saves your current settings so it has to use a bit of power.

    My 2nd guess would be just a normal battery discharge. They can just lose power if its not used for a few hours.

    So with a combination of both, that might be where your 6% decrease is coming from.
     
    bow3022, Jul 16, 2009
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  3. fmyhr

    fmyhr Notebook Geek

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    fmyhr, Jul 16, 2009
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  4. pepclub

    pepclub Notebook Consultant

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    Thanks for the replies, can't be a battery discharge. I just tired shuting it down for the night and there was no battery drainage.

    Glad to know I'm not alone, I'm running Vista 32 SP2, I'll try disabling the Wake-on-Lan settings in my bios later. But one thing I'm sure of is that this battery drainage problem while in hibernation only appeared recently on my T61.
     
    pepclub, Jul 17, 2009
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  5. pepclub

    pepclub Notebook Consultant

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    Update: Disabled Wake-on LAN, battery still drains.
     
    pepclub, Jul 18, 2009
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  6. hceuterpe

    hceuterpe Notebook Evangelist

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    Are you using Vista? I recall Vista has a "hybrid" sleep mode. You sure it's not going into that mode?
     
    hceuterpe, Jul 20, 2009
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  7. pepclub

    pepclub Notebook Consultant

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    Thanks for the suggestion. Yes, I'm running Vista, SP2. Tried disabling hybrid sleep, battery still drains. But on the other hand, disabling it made my laptop standby MUCH faster. :)
     
    pepclub, Jul 24, 2009
    #7