How to check laptop battery loss

Click "Start" and enter "Command Prompt" in the search bar.

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Right-click "Command Prompt" and select " Run as administrator", otherwise you will not have permission to run this command.

Enter the command: powercfg /batteryreport /output "C:\battery_report.html". At this time, the battery information is saved in C:\battery_report.html.

Find this web page file in the C drive: battery_report.html

Open it and you can see the detailed battery Report, the two arrows pointed to are the factory battery capacity and the current battery capacity.

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