Windows 10: Incorrect Battery Report, no estimate available

Hello,


I have a false battery life estimate within the battery report generated by powercfg. I believe this is preventing me from getting a battery remaining estimate. Is there a way to clear this false statistic?

2019-05-24 - 2019-05-31

321113:42:33​

0:00:01
5760000 % / 16 h ​

:)

 

OS battery life hours estimate question


If you Generate Battery Usage Report in Windows 10 the battery life estimates there are based on actual observed drain. I see no reason why the taskbar icon wouldn't be based on observed drain too.

 

Battery Report

Generate Battery Usage Report in Windows 10

• 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.

This should give a rough estimate of what the life of battery is. If the cycle count is there in the first section, it would show you how many time battery has been recharged.

 

missing battery time remaining estimation

How to generate a Battery Report in Windows 10:

1. Right-click on the Start menu to bring up the menu
   
2. Command Prompt -
   Choose Command Prompt (Admin) from the menu. Note that this must be the Admin version.
   
3. Yes to UAC prompt -
   A prompt will appear to which you need to give permission.
   
4. Command line -
   Copy and paste powercfg /batteryreport /output "C:\battery_report.html" (or what you want) into the command prompt window.
   
5. Open file -
   You should see a file labeled battery_report.html. Double-click on it to open the file.
   

Making Sense of the Report:
The report itself is made up of a few somewhat obvious subsections. The first area defines the parameters of the hardware, OS version, and other file details. The next section is called Installed batteries and gives a general breakdown of the battery installed on your computer.

Recent Usage is a very useful section as it details the time, state (active, suspended), power source and remaining capacity of the battery. In short, this is the record of when the laptop went to sleep, became active, and or charged with AC power along with the mWh capacity. If your computer is waking when it should not, you should see it here.

Other areas like Usage history and Battery capacity history are good to check for battery health. It is well known that Li-On batteries deteriorate over time, and this is where you can see that happen.

Battery life estimates is probably the most interesting section for most users. Here you can see what the OS is predicting for your computer's battery life with regular usage. This feedback tends to be more stable and accurate than the live estimate found by clicking the battery icon.

Like all data sources, the more information this tool has, the more accurate the report.