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Battery Usage Report - Generate in Windows 8


Brink

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mvp
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Battery Usage Report - Generate in Windows 8
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.
Published by Brink
#1
ByLine
How to Generate a Battery Usage Report in Windows 8 and 8.1
Synopsis
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.
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"


battery_report_command.jpg

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.
battery_report-1.jpg

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.
battery_report-1B.jpg

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.
battery_report-2.jpg

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).
battery_report-3.jpg

The Usage history section below show you the history of system usage on AC and battery power.
battery_report-4.jpg

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.
battery_report-5.jpg

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.
battery_report-6.jpg





That's it,
Shawn


 
Last edited by a moderator:

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theveterans

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#2
I really wish MS would add this feature to Windows 7 SP2 if they decide to make one :(
 

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bagavan

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#3
I get this error
bat.PNG
 

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Brink

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mvp
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#4
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 Computer

System One

  • OS
    64-bit Windows 10
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    PC/Desktop
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    Custom self built
    CPU
    Intel i7-3930K 3.2 Ghz (O/C to 4 Ghz)
    Motherboard
    ASRock X79 Extreme11
    Memory
    32 GB (8GBx4) G.SKILL DDR3 Quad PC3-19200 2400 MHz
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
    Sound Card
    SB Recon 3Di Integrated Chip
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    3 x 27" Asus VE278Q
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    256GB OCZ Vector
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RZK

New Member
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#7
very useful

Kudos :)
 

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#9
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>
Capture.PNG
 
Last edited by a moderator:

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    Windows 10 Pro Prieview x64
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    MacBook Pro Core2Duo
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    T7600
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    3
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    ATI Radeon X1600
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Brink

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mvp
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#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 Computer

System One

  • OS
    64-bit Windows 10
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    PC/Desktop
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    Custom self built
    CPU
    Intel i7-3930K 3.2 Ghz (O/C to 4 Ghz)
    Motherboard
    ASRock X79 Extreme11
    Memory
    32 GB (8GBx4) G.SKILL DDR3 Quad PC3-19200 2400 MHz
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
    Sound Card
    SB Recon 3Di Integrated Chip
    Monitor(s) Displays
    3 x 27" Asus VE278Q
    Screen Resolution
    1920x1080
    Hard Drives
    256GB OCZ Vector
    6TB WD Black WD6001FZWX
    PSU
    OCZ Series Gold OCZZ1000M 1000W
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    Corsair Air 740
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    Logitech wireless K800
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#11
I just tried the built in administrator and it is the same. I did a clean install of 8.1 with update last week and haven't changed permissions or moved user folders, no.

I can see the battery percentage OK in the notification area. I was trying to run the report as my laptop is shutting down at (I think) 35%.
 

My Computer

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    Windows 10 Pro Prieview x64
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    MacBook Pro Core2Duo
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Brink

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mvp
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#12
Usually, you get that error message on a desktop computer.

You could also run an energy report that includes a battery section for some details there.

Power Efficiency Diagnostics Report - Windows 7 Help Forums

For the 35%, double check to see what you have set under Battery in Power Options like below to see what percentage and actions you have set for them. This is what would normally do this.

Battery_Power_Options.jpg
 

My Computer

System One

  • OS
    64-bit Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Custom self built
    CPU
    Intel i7-3930K 3.2 Ghz (O/C to 4 Ghz)
    Motherboard
    ASRock X79 Extreme11
    Memory
    32 GB (8GBx4) G.SKILL DDR3 Quad PC3-19200 2400 MHz
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
    Sound Card
    SB Recon 3Di Integrated Chip
    Monitor(s) Displays
    3 x 27" Asus VE278Q
    Screen Resolution
    1920x1080
    Hard Drives
    256GB OCZ Vector
    6TB WD Black WD6001FZWX
    PSU
    OCZ Series Gold OCZZ1000M 1000W
    Case
    Corsair Air 740
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master
    Internet Speed
    100 Mb/s Download and 10 Mb/s Upload
    Browser
    Internet Explorer 11
    Antivirus
    Malwarebyte Anti-Malware Premium
    Other Info
    Lite-On iHBS212 12x BD Writer
    Creative F200 webcam
    Samsung CLX-3175FW Printer
    Linksys EA9500 Router
    Arris SB6190 Cable Modem
    APC SMART-UPS RT 1000 XL
Posts
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#13
The powercfg -energy works fine it is only the -batteryreport that fails.

I've updated my power plan to sleep not hibernate as I had disabled hibernation as I'm very short of disk space (only having 40GB). Thanks for that - I forgot :)
 

My Computer

System One

  • OS
    Windows 10 Pro Prieview x64
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    Laptop
    System Manufacturer/Model Number
    MacBook Pro Core2Duo
    CPU
    T7600
    Memory
    3
    Graphics Card(s)
    ATI Radeon X1600
    Monitor(s) Displays
    Internal
    Screen Resolution
    1440 x 800
    Hard Drives
    40GB
    Keyboard
    Apple
    Mouse
    Apple
    Internet Speed
    Varies
    Browser
    Various
    Antivirus
    Defender

visruth

Well-Known Member
Pro User
India

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#14
The powercfg -energy works fine it is only the -batteryreport that fails.

I've updated my power plan to sleep not hibernate as I had disabled hibernation as I'm very short of disk space (only having 40GB). Thanks for that - I forgot :)
I too forgot to change hibernate to sleep there after moving to SSD :)
 
Last edited:

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visruth

Well-Known Member
Pro User
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1,536
#15
It worked for me -

Screenshot (73).png

Screenshot (74).png

Screenshot (76).png

Screenshot (77).png

Screenshot (79).png
 

My Computer

System One

  • OS
    Win 8.1 Update x64
    Computer type
    Laptop
    System Manufacturer/Model Number
    HP Pavilion 15
    CPU
    Haswell Core i5 4200U
    Memory
    8GB Dual-Channel DDR3L @1600
    Graphics Card(s)
    Intel HD 4400 Integrated; 2GB Dedicated NVIDIA GT 740M
    Hard Drives
    500GB Samsung 840 EVO Internal SSD ;
    2TB WD MyPassport Ultra EHDD ;
    1TB TOSHIBA HDD
    Cooling
    Deepcool X6
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    Logitech B175 Wireless Mouse
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    Microsoft Wired Xbox 360 Controller

stringjunky

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#16
I've had my Acer Aspire ES1-512 only a week so the battery is pretty good. They've certainly got more efficient; at least double usage time since I got my last computer. It's advertised at 7 hours usage time but the estimate on my report is about 8 1/2hrs. Wonder how long that'll last?

Battery1.JPG battery2.JPG
 

My Computer

System One

  • OS
    Windows 8.1 with Bing x64
    Computer type
    Laptop
    System Manufacturer/Model Number
    Acer Aspire ES1-512-CSYW
    CPU
    Intel Celeron N2840 @ 2.16GHz
    Motherboard
    Acer Aspire ES1-512 BIOS: Insyde Corps V1.07
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    4GB DDR3L SDRAM
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theveterans

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#17
Considering that's a Bay Trail CPU and only 7.5 watt TDP, along with 50 mwh capacity 8 hours should be the norm when doing light tasks.
 

My Computer

System One

  • OS
    Windows 8.1 Pro x64 with Media Center
    Computer type
    Tablet
    System Manufacturer/Model Number
    Surface Pro 3
    CPU
    Core i5 4300U @ 1.9 GHz
    Motherboard
    Surface Pro 3
    Memory
    8092 MB DDR3-L 1.35 V SDRAM @ 1600 MHz
    Graphics Card(s)
    Intel HD 4400 @ 200 MHz
    Sound Card
    Realtek HD Audio
    Monitor(s) Displays
    Built-in 3:2 display
    Screen Resolution
    2160 x 1440
    Hard Drives
    256 GB SSD + 128 GB micro SD
    PSU
    36 Watt power brick
    Cooling
    Active
    Keyboard
    On Screen Keyboard
    Mouse
    Surface pen
    Internet Speed
    300 / 20 TWC
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    IE 11 Metro, IE 11 Desktop
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stringjunky

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Yellow Belly

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178
#18
Considering that's a Bay Trail CPU and only 7.5 watt TDP, along with 50 mwh capacity 8 hours should be the norm when doing light tasks.
What's Bay Trail? Does that mean it's energy-efficient? I did notice in Task Manager That it will clock down to 0.45GHz and up to 2.55GHz even though it's rated at 2.15GHz.
 

My Computer

System One

  • OS
    Windows 8.1 with Bing x64
    Computer type
    Laptop
    System Manufacturer/Model Number
    Acer Aspire ES1-512-CSYW
    CPU
    Intel Celeron N2840 @ 2.16GHz
    Motherboard
    Acer Aspire ES1-512 BIOS: Insyde Corps V1.07
    Memory
    4GB DDR3L SDRAM
    Graphics Card(s)
    Intel HD
    Internet Speed
    10Mb/s 3 Network HSPA+
    Browser
    IE11 and Firefox
    Antivirus
    Windows Defender

theveterans

New Member
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Posts
179
#19
Bay Trail is code name for Intel Atom and Celeron CPUs for 2013-2014. They're efficient and consume only 7.5 watts under full load. Intel Celeron N2840 - FH8065301903600

My tablet is Intel Atom z3770 at 1.46 GHz boost to 2.39 GHz (Bay Trail) with 30 mWh battery and I get 8 hours of battery with normal browsing.
 

My Computer

System One

  • OS
    Windows 8.1 Pro x64 with Media Center
    Computer type
    Tablet
    System Manufacturer/Model Number
    Surface Pro 3
    CPU
    Core i5 4300U @ 1.9 GHz
    Motherboard
    Surface Pro 3
    Memory
    8092 MB DDR3-L 1.35 V SDRAM @ 1600 MHz
    Graphics Card(s)
    Intel HD 4400 @ 200 MHz
    Sound Card
    Realtek HD Audio
    Monitor(s) Displays
    Built-in 3:2 display
    Screen Resolution
    2160 x 1440
    Hard Drives
    256 GB SSD + 128 GB micro SD
    PSU
    36 Watt power brick
    Cooling
    Active
    Keyboard
    On Screen Keyboard
    Mouse
    Surface pen
    Internet Speed
    300 / 20 TWC
    Browser
    IE 11 Metro, IE 11 Desktop
    Antivirus
    Windows Defender

shamisz

New Member
Posts
1
#20
wow guys ive been wondering how long my surface 2 pro battery lasts had it about a year, i always fully charge and let run down, i thought it was about 4-5hrs i got :)
Capture1.JPG Capture2.JPG Capture3.JPG Capture4.JPG
 

My Computer

System One

  • OS
    windows 8.1