Windows 10 (and Windows 11 as well) includes a hidden function that allows you to generate a “Battery Report” with data about your laptop’s battery health.
To get this report, you will have to run a command in PowerShell that generates an HTML document with all the information about your battery.
How to generate the Windows battery report
First, open a PowerShell window. To do this, press Windows + X and choose the Windows PowerShell option.
In the PowerShell window, type the following command and press Enter:
powercfg / BatteryReport
This command saves a battery report in HTML format to the following location:
C:UsersYourUsernamebattery-report.html
Just head over to File Explorer, navigate to C:UsersYourUser and double-click the file to open it in your default browser.
How to interpret the battery report
The battery report is an HTML page with several sections. The first section shows your computer data, but the interesting information is in the second section “Installed Batteries”.
Here we can see information about the batteries installed, although you will only see one battery on most computers. Battery information includes the battery name, manufacturer, serial number, and chemistry type.
The most important details here are design capacity, total load capacity and cycle count numbers.
For example, on my own laptop, which is only six months old, the design capability battery is 50,250 MWh, while theCurrent total load capacity That is 48,070 MWh.
This decrease in capacity is a result of the wear and tear that a battery experiences over time and allows you to see how healthy the battery is.
The battery was originally designed to support 50,450 mWh, but now has a maximum of 48,070, meaning it can handle 95% of the original charge. This number will continue to decrease over time as you use the battery and put it through more charge cycles.
Incidentally, the number of cycles (cycle count) shows how many charge cycles a battery has had. A full charge cycle is measured by 100% battery consumption. For example, 100% to 75% discharge, 75% to 100% charge, and up to 25% discharge count as a single cycle.