Extending time between second low battery notification and hibernation  


  1. Posts : 251
    Windows 10
       #1

    Extending time between second low battery notification and hibernation


    We've all seen these notifications if you use a laptop.

    Extending time between second low battery notification and hibernation-battery-running-low.png

    Extending time between second low battery notification and hibernation-battery-very-low.jpg

    But my problem is that as soon as the second low battery notification appears, that my laptop goes onto hibernate in less than 5 seconds. How can I extend that time? What percentage value do I need to change my existing settings to?

    Right now it's at the default settings, as defined by windows, that is typical of a freshly new windows installation.

    I'm using Windows 10 21H2

    See the screenshots below for more details. You can see my current advanced power plan settings below.

    Extending time between second low battery notification and hibernation-advanced-power-options-window.png

    Extending time between second low battery notification and hibernation-advanced-power-options-my-battery-settings.png
      My Computer


  2. Posts : 14,308
    Windows 10 Home x64 Version 22H2 Build 19045.2728
       #2

    Des,

    "How can I extend that time?"

    You need to increase your Critical battery level. You'll also find it useful to increase the Reserve & Low levels to suit the new Critical battery level.
    - As you'll notice from the battery settings you illustrated , Reserve battery is a pre-defined notification only. No action is taken.

    It sounds to me that your battery is getting worn out and is dropping rapidly as soon as the notifications start to appear.
    I urge you to run a BatteryReport so you can find out the ratio of Full charge capacity to Design capacity.
    - I suspect it is very low.
    - If it is not very low then I'd say the battery has a defect.
    So I think you need to buy a new battery.

    Battery report syntax
    [put in your own path in place of my D:\Desktop]
    Code:
    PowerCfg /batteryreport /output D:\Desktop\BatteryReport.html /Duration 1

    Battery report - parameters of interest
    Extending time between second low battery notification and hibernation-battery-report-main-parameters.png
    You will want to work out the ratio
    Full charge capacity / Design capacity




    Best of luck,
    Denis
      My Computer


  3. Posts : 251
    Windows 10
    Thread Starter
       #3

    Extending time between second low battery notification and hibernation-battery-report-extract.png

    The ratio is 0.63

    However a new power plan was delivered to my computer, probably from Windows Update.

    Extending time between second low battery notification and hibernation-windows-unexpected-shutdown-reliability-monitor.png

    It was probably due to what happened on my 5th day of using my laptop, following an unexpected shutdown from 2 weeks ago, when the laptop was attempting to hibernate whilst it had ran completely out of battery before it had the chance to fully hibernate, in the midst of lots of programs running at the same time (as well as a 2.4GHz wireless mouse).

    Extending time between second low battery notification and hibernation-power-plans-my-acer-laptop-aspire-315-56.png

    The one on the right is what Windows Update gave me (within the last 2 days, most likely today). Before there was only one power plan.

    The only changes I had made was

    • Low battery level: 10% before and 15% after
    • Reserve battery level: 7% before and 10% after
    • Critical battery level: 5% before and after


    I'll switch from the high performance plan to the balanced plan, to see if that helps, after a few weeks.

    Update: 2 weeks later

    • Low battery level: 17% (+2)
    • Reserve battery level: 14% (+4)
    • Critical battery level: 7% after (+2)


    Update: Another 2 weeks later

    • Low battery level: 19% before (+2)
    • Reserve battery level: 15% (+1)
    • Critical battery level: 7% (no change)


    Update: Another 2 weeks later

    • Low battery level: 22% before (+3)
    • Reserve battery level: 17% (+2)
    • Critical battery level: 7% (no change)
    Last edited by desbest; 1 Week Ago at 15:58.
      My Computer


 

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