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    Better battery life under W7 compared to Vista ?

    Discussion in 'Windows OS and Software' started by Laptopaddict, Sep 28, 2009.

  1. Laptopaddict

    Laptopaddict Notebook Deity

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    W7 is lighter than Vista.

    How much better in % is your battery life under W7 compared to Vista ?
     
    Laptopaddict, Sep 28, 2009
    #1
  2. Shadys321

    Shadys321 Notebook Enthusiast

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    I actually get an extra ~10-20 minutes under Power Saver/Eco Turbo Battery Mode in Windows 7 RTM 64Bit then Windows Vista SP2 32Bit.
     
    Shadys321, Sep 28, 2009
    #2
  3. newsposter

    newsposter Notebook Virtuoso

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    In theory yes. But batery life is mostly dependant on how a machine is used than any power plans selected.

    If you use your Win7 machine the same way you use your XP/Vista machine, don't expect anything seriously different.
     
    newsposter, Sep 28, 2009
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  4. locoelbario

    locoelbario Notebook Enthusiast

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    i got a extra 15 -20 minutes batery life
     
    locoelbario, Sep 30, 2009
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  5. Amnesiac

    Amnesiac 404

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    With Balanced power setting, I have noticed a small (10 - 20 minute) increase in battery life, so therefore it is slightly better. But probably only because of the number of background processes I had in Vista.
     
    Amnesiac, Oct 1, 2009
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  6. Laptopaddict

    Laptopaddict Notebook Deity

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    Now that 7 is live, more people should be able to give input in this ...
     
    Laptopaddict, Oct 26, 2009
    #6
  7. mtarm1

    mtarm1 Notebook Evangelist

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    well i get 15 mins extra with a fresh install of win7 RC (idle with NBR site open) compared to vista sp2clean install (idle with NBR site open
     
    mtarm1, Oct 26, 2009
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  8. Ice Cold

    Ice Cold Notebook Deity

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    With the Auto Dim and way less Disk Thrash there should be some battery savings also more efficient threading to each core. Problem is Windows 7 uses GPU acceleration which is great, but my GPU is 55nm vs my CPU is 45nm. If I could disable GPU acceleration I would get better battery life.
     
    Ice Cold, Oct 26, 2009
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  9. Deathwinger

    Deathwinger Notebook Virtuoso

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    I'll let you know by Wednesday. I have a meeting on Tuesday were I normally go the entire thing unplugged and have about 30-50% battery remaining at the end.
     
    Deathwinger, Oct 26, 2009
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  10. roytse

    roytse Notebook Evangelist

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    i had to tweak a lot to get 2hr 15min in vista
    but now win 7 gives me 2hr 15min without any tweaks or changes to the system
    so i consider this an improvement
    ;)
     
    roytse, Oct 26, 2009
    #10
  11. Luke1708

    Luke1708 Notebook Virtuoso NBR Reviewer

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    hey how do you disable gpy acceleration???
     
    Luke1708, Oct 26, 2009
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  12. weinter

    weinter /dev/null

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    Disable Aero.
    However you still have to consider VGA Driver settings if it is in 2D or 3D Mode depending on how OEM set it.
    Usually GPU reverts to 2D mode in Desktop
     
    weinter, Oct 26, 2009
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  13. spradhan01

    spradhan01 Notebook Virtuoso

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    Turning on and off SLI will make a difference while not gaming?
     
    spradhan01, Oct 26, 2009
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  14. SDreamer

    SDreamer Notebook Consultant

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    At first, horrible, I don't know why. Now it's about on par with Vista, maybe 10-20 minutes more, which is a big difference. Battery gadget says 7:05 instead of 6:50 it did usually on Vista. That is upon boot. But I can say, yesterday I made it from noon to about 8 just doing some light surfing, and having iTunes blasting most of the time with the screen off. Was about 11% by the time I started charging, still had about 50 minutes left apparently.
     
    SDreamer, Oct 26, 2009
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  15. mozster

    mozster Notebook Enthusiast

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    i got 22 more minutes from my battery. not too bad, considering i am constantly on this beast. (alienware m17x)
     
    mozster, Oct 27, 2009
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  16. Deathwinger

    Deathwinger Notebook Virtuoso

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    Ok, just got back from the meeting. It was about 2 and a half hours, laptop was on the entire time, it reached 52%. Nice!

    I also must comment on the speed that it comes out of hibernate, almost makes me believe it was Sleep I put it on. Amazing, loving this OS with each passing day!
     
    Deathwinger, Oct 27, 2009
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  17. Ice Cold

    Ice Cold Notebook Deity

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    Also noticed under W7 I never go over 52 process started in Vista I was always at or over 65, that has to help.

    Also I saw this video Microsoft spefically designed Windows 7 to optimize IDLE. Under Vista my lowest CPu usage was 3% per core

    in Windows 7 Pro 64-Bit,, The second I close all open windows I drop to 0% on Core 0 and 6% on Core 1.

    And then it alternates between cores and IDLES each one to 0%, that really helps cooling therefore saving power.
     
    Ice Cold, Oct 28, 2009
    #17