[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)

    22.2%
  2. 20%

    11.1%
  3. 40%

    55.6%
  4. 50% +

    11.1%
  1. Che0063

    Che0063 Notebook Consultant

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    Thanks for your feedback.

    30Whrs for a laptop battery is downright unacceptable. I will absolutely refuse to buy any laptop that has any laptop batteyr capacity of less than 50W.

    30Whrs should get you 4-6hrs, really.
     
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  2. Vasudev

    Vasudev Notebook Prophet

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    @Che0063 I agree 30Wh is too small.
    @GTMoraes Maybe 3.30 hrs is great on 30Wh battery. I use firefox and battery life was good like I posted in previous pages lasting around 6-9hrs+ with -10-15W usage on 5GHz band WiFi and BT turned off.
    You can uncheck speedstep,C1E and check off speedshift for greater perf. and battery life.
     
  3. GTMoraes

    GTMoraes Notebook Consultant

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    It's a joke, really. And there's even not enough room to install a larger battery. My old Y50 had a 54Wh battery whose connector is physically compatible with this Ideapad (and the Y50 battery still holds great), however it's proportionally longer and won't fit.

    Thankfully, the battery on this thing holds long enough for everything I do mobile. Or long enough so I can get to an outlet
    btw the charging cable on that thing is comically small. Like 1,5m or so, and the charger isn't your conventional cable-charger-cable, it looks like an oversized phone charger. I had to make an extension so I could use the charger from a reasonably far outlet.

    Lenovo loves to put good hardware paired with absurd hardware.

    Isn't C1E good for battery life? I thought it was a power saving feature.
     
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  4. Vasudev

    Vasudev Notebook Prophet

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    Not at all used on modern chipset acc. to unclewebb and speedshift takes over for enhanced battery and performance.
     
    Last edited: Jun 13, 2018
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  5. Maleko48

    Maleko48 Notebook Evangelist

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    If you want low idle (C0%) you need to tame your windows processes and services as well as your additionally installed programs, and their services and tasks.
     
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  6. Che0063

    Che0063 Notebook Consultant

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    upload_2018-7-22_7-44-20.png

    EDIT: PCI Express Link State Power Management needs to be set to Maximum Power Savings on my system. It doesn't affect my Passmark CPU or GPUMark score.
     
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  7. Vasudev

    Vasudev Notebook Prophet

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    In high perf. mode, PCIe power savings are OFF.
     
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  8. Che0063

    Che0063 Notebook Consultant

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    Exactly. By default the high performance power plan disable Pie power savings.

    After all these years I finally now know.
     
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  9. Vasudev

    Vasudev Notebook Prophet

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    Pie?
     
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  10. hmscott

    hmscott Notebook Nobel Laureate

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    Yes, Blueberry is my favorite... although Key Lime and Banana Creme are nice too.

    I disable them rapidly through consumption. :cool:

    No matter the power plan, it's always good to go through the Advanced settings and check the default settings, I enable things / disable things in each - defaults don't suffice. And, in Windows 10 it sounds like every Update resets settings and you need to recheck *all* of them, everywhere.

    Time for my Blueberry Pie... :)
     
    Last edited: Jul 22, 2018
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