Loading…
Loading…
Utilities / Public
Runs in your browserUpload the battery-report.html file that Windows generates with "powercfg /batteryreport" and get an instant, plain-English breakdown: battery health, wear and trend, charging habits, idle drain, and an explanation of every field in the report. Free to use, and the file is analysed in your browser and never uploaded.
Press the Windows key, type cmd and press Enter. You do not need administrator rights. Windows Terminal and PowerShell work the same way.
Run this command. Windows prints the full path where it saved the file.
powercfg /batteryreportPut the file straight on your Desktop so you can upload it without hunting for it.
powercfg /batteryreport /output "%USERPROFILE%\Desktop\battery-report.html"The Recent usage and Battery usage sections cover the last 3 days by default. Use /duration to widen that window, for example 14 days.
powercfg /batteryreport /duration 14 /output "%USERPROFILE%\Desktop\battery-report.html"If you used the first command, the file is in your user folder. These open it for you:
explorer .start battery-report.htmlUse the file picker on this page and choose battery-report.html. The analysis starts as soon as you pick the file.
Where is the file? In a normal Command Prompt it is saved in your user folder, for example C:\Users\YourName\battery-report.html. If you opened Command Prompt as administrator it is saved in C:\Windows\System32 instead, so the Desktop command above is easier.
Command fails or says there is no battery? Desktop PCs have no battery to report on. On a laptop, make sure you are typing it in Command Prompt or PowerShell on Windows 8 or later, and that the battery is detected in Device Manager under Batteries.
Mac or Linux? They do not produce this report. On a Mac, open System Settings, Battery, Battery Health. On Linux, run upower -i /org/freedesktop/UPower/devices/battery_BAT0.
Privacy. The report contains your computer name and battery serial number. This tool reads the file locally and never uploads it.