Problem Solving

Check Laptop Battery Health In Windows

Use the built-in Windows battery report to check the current battery condition, where the file is saved, and which values matter before you quote a battery replacement.

1

Open Command Prompt As Administrator

Click Start, type cmd or Command Prompt, then choose Run as administrator. If Windows asks for permission, click Yes.

The correct window is the black command window. On most machines it will show a prompt similar to C:\Windows\System32>.

If the customer laptop is locked down, you still only need a local admin prompt for this check. No extra software is required.
Run Command Prompt as administrator
Example of opening Command Prompt with Run as administrator.
2

Run The Battery Report Command

In the Command Prompt window, type:

powercfg /batteryreport /output "%USERPROFILE%\\Desktop\\battery-report.html"

Then press Enter. Windows will generate the battery health report and show the save message in the same CMD window.

This command forces the file onto the current Windows user's Desktop, so staff do not need to guess where it was saved.
Battery report command in CMD
After pressing Enter, CMD should confirm that the battery life report was saved to a file path.
3

Open The File From The Saved Path

Because this guide uses the custom output command above, the report file will be saved here:

%USERPROFILE%\\Desktop\\battery-report.html

In normal Windows format, that means: C:\Users\YourWindowsName\Desktop\battery-report.html

Open File Explorer, go to the Desktop, then open battery-report.html with a web browser. If the machine tries to open it with Notepad or another text app, right-click the file and choose Open with, then select Edge, Chrome, or another browser.

Open battery report from File Explorer
Open the saved HTML report from File Explorer with a web browser.
4

Check The Most Important Battery Values

In the report, the most important items for a quick battery health check are:

Installed batteries: look for Design capacity, Full charge capacity, and Cycle count.

Main reading rule: if Full charge capacity is much lower than Design capacity, the battery has degraded and may need replacement.

Practical rule for quoting: if the full charge capacity has dropped heavily compared with design capacity, and the customer also reports poor runtime, that supports a battery replacement recommendation.
Design capacity and full charge capacity in battery report
Focus on Design capacity, Full charge capacity, and Cycle count.
5

Check Battery Capacity History

Scroll further down to Battery capacity history. This section helps when you need a better picture of long-term battery wear, not just the current numbers.

Compare the newer entries against the original values. If the newer full charge capacity is consistently much lower, the battery health is poor.

Battery capacity history section in battery report
Battery capacity history helps confirm long-term degradation over time.
Source references: Microsoft Support, Microsoft Learn, Tom's Hardware, TechRadar.