• Lowell

Check Windows Laptop Battery Health

Windows 10 has a built-in laptop battery heath app, but it is not obvious and it requires running the Command Prompt app. Here’s how to check your battery health.

  1. Click the Start button and type “cmd” without quotes. Or, if you have a Search box to the right of the Start button, type there.

  2. When Command Prompt appears at the top of the Start menu, click it or press Enter.

  3. A black screen will open with a prompt and blinking cursor.

  4. At the blinking cursor, type “cd %userprofile%\desktop” without quotes, and press Enter. (That’s a space between cd and the first % sign.) This forces the battery report to be saved on your computer’s Desktop screen, where it should be easy to find.

  5. Type “powercfg/batteryreport” without quotes, and press Enter. After a couple seconds, you'll see a message indicating the report is saved with the name battery-report.html on your computer Desktop screen.

  6. Click the X in the upper right corner of the Command Prompt app to close it.

  7. On your computer’s Desktop screen, look for the file named in step 5. Or, open File Manager (yellow file folder on Taskbar along bottom of computer screen), navigate to Desktop, and then find the file. Double click the file open it in your default web browser.

Scroll the report to review the information. The top section, after doing the math (full charge capacity divided by design capacity), revealed my five-year old battery has only 45% of its original capacity—not a surprise. The battery capacity section shows how battery life has declined over time.


For more information, when you finish viewing the report, click the Start button, Settings, System, Battery. You will see a listing of battery usage by app.

14 views

Related Posts

See All

Find Your Windows Product Key

I use Tom's Guide often to find technology info. This site has instructions for finding your Windows product key. Also, there is a program called Belarc Advisor that will scan your computer and compil

Windows 11 - Maybe, Maybe Not

I remember way back in July, 2015, Microsoft announced Windows 10 and said it would be the last Windows operating system. This past Thursday, June 24th, 2021 Microsoft announced Windows 11. Since Thur

Hack Your WiFi Password - But Only Your Password

I'm trusting you to use these tips only on your own devices to recover your own WiFi network password. I guess it's okay to help your neighbors and family members out too. Let's first think about how