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Battery Usage Report - Generate in Windows 8

  1. #1
    Battery Usage Report - Generate in Windows 8

    Battery Usage Report - Generate in Windows 8
    How to Generate a Battery Usage Report in Windows 8 and 8.1
    Published by Brink is offline
    16 Sep 2013
    Default Battery Usage Report - Generate in Windows 8

    Published by


    Brink's Avatar
    Administrator

    Join Date: Jul 2009
    Posts: 22,576

    How to Generate a Battery Usage Report in Windows 8 and 8.1


    information   Information
    The Windows 8 battery usage report will help you to know more about the usage, health, and life estimates of your system's battery.

    This tutorial will show you how to generate a detailed battery usage report for your Windows 8, Windows RT, Windows 8.1, or Windows RT 8.1 PC (ex: laptop, Surface, or tablet) that runs on a battery.

    Note   Note
    This will not work on a desktop PC.





    Here's How:

    1. Open a command prompt.

    2. In the command prompt, copy and paste the command below, and press Enter. (see screenshot below)


    powercfg /batteryreport /output %USERPROFILE%\Desktop\battery_report.html


    Note   Note
    If you use only the red part of the command above, then your battery_report.html file will be saved in whatever folder you have the command prompt opened to. By default, this would be your "C:\Users\(user-name)" folder.

    If you like, you could also change the command to specify where you would like the battery_report.html file to be saved to instead.

    powercfg /batteryreport /output "C:\Full Path\battery_report.html"


    Click image for larger version

    3. Double click/tap on the battery_report.html file on your desktop to open and see your battery usage report in your default web browser (ex: Internet Explorer).

    4. This is a copy of my laptop's battery usage report in Internet Explorer as an example of what is reported. (see screenshots below)


    The top of the battery usage report will give you general information about your PC as well as if your PC supports connected standby or not.

    Name:  battery_report-1.jpg
Views: 64154
Size:  35.0 KB

    The Installed batteries section below gives you detailed information about the battery including the name, serial number, and manufacturer.

    • Chemistry = Usually will be LION for Lithium-ion battery.
    • Design Capacity = The amount of charge that the battery was designed to hold in mWh (milliwatt hours).
    • Full Charge Capacity = The amount of charge that the battery will actually hold.
    • Cycle Count = The number of times that the battery has used up 100% of its charge and then recharged, or the result of discharging to 50%, charging to full, then discharging to 50% again. Batteries have a limited amount of cycles to work through before they are considered consumed.


    Name:  battery_report-1B.jpg
Views: 63230
Size:  26.6 KB

    The Recent usage section below lists the power states (active or suspended) that your system has gone through over the last 3 days (72 hours). You will also see if the power "source" was AC or battery, and the remaining capacity shown as a percentage and mWh.

    Click image for larger version

    The Battery usage section below shows you the date and time in a chart and table for each instance when the battery was drained over the last 3 days (72 hours).

    Click image for larger version

    The Usage history section below show you the history of system usage on AC and battery power.

    Click image for larger version

    The Battery capacity history section below shows you the charge capacity history of the system's batteries. It compares the "Full Charge Capacity" with the "Design Capacity" over a period of time.

    Name:  battery_report-5.jpg
Views: 62660
Size:  104.4 KB

    The Battery life estimates section below will help indicate how long you can expect the battery to last at a "full charge capacity" and at "design capacity" based on the observed drains.

    Click image for larger version





    That's it,
    Shawn


  2. #1


    Posts : 179
    Windows 8.1 Pro x64 with Media Center


    I really wish MS would add this feature to Windows 7 SP2 if they decide to make one

      My System SpecsSystem Spec

  3. #2


    bangalore
    Posts : 634
    Windows 8.1 professional x64 + WMC


    I get this error
    Click image for larger version
      My System SpecsSystem Spec

  4. #3


    Posts : 22,576
    64-bit Windows 10


    Hello Manjunath,

    That error usually means a mistake has been made entering the command. See if entering the command below and press Enter will save the .html file to whatever folder your command prompt is opened to.

    powercfg /batteryreport
      My System SpecsSystem Spec

  5. #4


    Posts : 8
    windows 8


    great information thanks for posting this!
      My System SpecsSystem Spec

  6. #5


    very useful, tks a lot!
      My System SpecsSystem Spec

  7. #6


    Posts : 4
    8.1 pro


    very useful

    Kudos
      My System SpecsSystem Spec

  8. #7


    Indore
    Posts : 6
    Windows 8


    Thanks a lot
      My System SpecsSystem Spec

  9. #8


    Posts : 1,875
    Windows 10 Pro Prieview x64


    Doesn't work for me - I get "An unexpected error condition has occurred. Unable to perform operation. You may not have permission to perform this operation." when running from Admin command prompt.

    I have checked sfc /scannow and dsim and they report no errors.

    Any ideas?

    Edit - my screenshot only shows when previewing post for some reason so commands added as text.
    Code:
    Microsoft Windows [Version 6.3.9600]
    (c) 2013 Microsoft Corporation. All rights reserved.
    C:\Windows\system32>powercfg /batteryreport /output %USERPROFILE%\Desktop\battery_report.html
    An unexpected error condition has occurred.  Unable to perform operation.  You may not have permis
    sion to perform this operation.
    C:\Windows\system32>powercfg /batteryreport
    An unexpected error condition has occurred.  Unable to perform operation.  You may not have permis
    sion to perform this operation.
    C:\Windows\system32>
    Click image for larger version
    Last edited by Brink; 03 Sep 2014 at 02:32. Reason: attached your uploaded image
      My System SpecsSystem Spec

  10. #9


    Posts : 22,576
    64-bit Windows 10


    Hello Adam,

    As a test, see how it works while signed in to the built-in Administrator account.

    Did you move your user profile folder, or play with permissions of it any?
      My System SpecsSystem Spec

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Battery Usage Report - Generate in Windows 8
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