How to create a battery report on Windows 11 to learn more

The battery report will contain all the information you could want about your laptop battery, including manufacturer, design capacity, historical usage data, and battery estimates. Here's what you need to do to create your own battery report.

Create a battery report on Windows 11

While it may sound a bit technical, creating a battery report is actually very simple and risk-free. Here's what happens:

1. Right-click the Start icon on the taskbar (or press the Windows key X) and select## from the list of options #Terminal (Administrator). If you have uninstalled Windows Terminal from your PC, this option will appear as Windows PowerShell (Admin).
Accept the User Account Control (UAC) prompt that requires administrator privileges.
2. Copy the following text and paste it into a Windows Terminal/PowerShell window:
3. powercfg /batteryreport /output “C:\battery_report.html”
   This will output the battery report as an HTML file to the root directory of the C: drive. You can export the file to any folder you want by changing the path specified at the end of the command.
Press Enter and the report will be generated.

That’s all you need to know to create a battery report, but then there’s the matter of reading and understanding the report content.

What's in the Battery Report

There's a lot of information in the Windows 11 Battery Report, so we'll try to help you understand everything shown here. To open the battery report, go to the folder you specified in the above command and find the file named

battery_report.html. Then, let's take a closer look.

The top of the report contains some general information about your laptop, including the version of Windows you're running and your firmware. This shouldn't be the most interesting part of the report, but it gets a little more interesting next. The first section is called Battery Installed and is a summary of information about the battery inside your laptop. This includes the manufacturer, chemistry – almost certainly lithium-ion (LIon) – design capacity and full charge capacity.

There may be some differences between these two capacity values, the most important being the full charge capacity as this is how much power the battery can actually hold.

Next, you will see recent battery usage information. The first table includes a list of power state changes over the last three days, as well as the battery condition at that time. Every time you unplug your laptop, put it to sleep, etc., it's logged here. Below that, there's a graph specifically showing the laptop's power consumption over the past three days. Of course, this will only include any information you have on a battery-powered laptop. This allows you to see how quickly the battery discharges when you unplug it from the outlet, giving you an idea of ​​how long the battery lasts.

The next two tables have more historical data. The data in this chart will include battery usage information since you last performed a clean installation of Windows or since you purchased it. The first table includes a summary of the time spent using the laptop per week. This summarizes active usage and connected standby time while on battery and plugged into an outlet. The table below contains information about how laptop battery capacity has changed over time, so you can see how much wear it may have worn.

Finally, the part that may be of most interest to you is the battery life estimate. The data in this table is also based on all your historical battery usage data, so you can see an estimate of how long your battery is likely to last based on your usage and battery capacity, including active use and connected standby. This also includes estimated power consumption per 16 hours when using connected standby, so if you take the laptop out for a full day, you can know if it can stay charged when not in active use.

For earlier dates, this information is aggregated by week, but the last 7 days are shown separately. Finally, you can also see an overall estimate based on all battery drain cycles since the operating system was installed.

With all of this, you should be able to accurately measure how long your laptop's battery should last when fully charged. This is the best way to learn everything you need to know about your laptop battery, and it might help you determine if you should replace it.

The above is the detailed content of How to create a battery report on Windows 11 to learn more. For more information, please follow other related articles on the PHP Chinese website!