[Guide] Improving Battery Life on Windows [+Enabling Deeper C States]

Discussion in 'Windows OS and Software' started by Che0063, Apr 14, 2018.

?

What was your increase in battery life after following this guide?

  1. None (decreased)

    16.7%
  2. 20%

    16.7%
  3. 40%

    50.0%
  4. 50% +

    16.7%
  1. Jarip

    Jarip Newbie

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    Che0063, thanks for a great guide. Yes, it made a clear improvement for a battery life of my laptop (over 50 %). Thanks.
     
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  2. Maleko48

    Maleko48 Notebook Evangelist

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    @Vasudev is there a way to translate this thread to my Linux Ubuntu install so it gets better battery life too?
     
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  3. Vasudev

    Vasudev Notebook Prophet

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    Firstly, migrate/upgrade to 4.13 kernel on LTS version of Linux, secondly install TLP. Reboot and install Powertop.
    Open a terminal, type
    Code:
    sudo powertop --calibrate
    Run that code separately on AC power and DC power to get optimal performance and battery life.
    BTW, I got Linux kernel 4.15 on Xubuntu 16.04 and am using linux firmware deb file from here https://launchpad.net/ubuntu/+archive/primary/+files/linux-firmware_1.173_all.deb
     
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  4. JRE84

    JRE84 Notebook Consultant

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    anomaly post

    something that deviates from what is standard, normal, or expected.
     
    Last edited: May 2, 2018
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  5. Maleko48

    Maleko48 Notebook Evangelist

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    Heeeeeellllllllll no! 59Hz is bad enough. Besides isn't that what self refresh is for?
     
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  6. Vasudev

    Vasudev Notebook Prophet

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    I'm running at 75Hz w/o any reduction in battery life at all.
     
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  7. JRE84

    JRE84 Notebook Consultant

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    well lighting pixels drains battery life.
    lighting them half as fast improves battery life hence
    my ux 330 gained 2 hours, but it lasts over 12 hours....

    so yeah it might not improve it much if your lifespan is 2hours.


    edit so i just cross checked my own decent suggestion...

    looks like the only way to tell is with battery bar pro and the like

    i just did i quick test and the draw was a minimal change, could have been a coincidence i was getting 2 hours more...or well not sure....batterybar pro shows on average 2000mv less when idle...during usage its around 10mv less.



    so if your idling your laptop alot its a good suggestion, and if you plan on actually using it im sorry and retract
     
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  8. ha1o2surfer

    ha1o2surfer Notebook Evangelist

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    Panel Self Refresh is really made to reduce power consumption on the computing side of the equation not really the display side per say. Now a great side effect is the display using less power but not nearly as much as if you just reduced the backlight.
     
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  9. Radixtrator

    Radixtrator Newbie

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    Ok so ive tried about everything in your guide but my XPS 13 9370 (i5) just will not go above C2 states. I tried Driver Booster to update all the drivers, set the AHCI to lowest, used throttlestop with SpeedShift (180), the whole nine yards..
    But no matter what, I have a package of over 80% on C2 and never above it.. Any idea? I havent found a solution on the forum in any of the XPS threads yet..
     

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