How to Check Battery Health in Laptop on Windows 11/10 [2026], by CY'S GADGETS on YouTube. 3 min 38 s.
- Video length
- 3 min 38 s
- Time to do it
- 10 minutes
- Difficulty
- Easy
- Steps
- 8
What you need
Steps
Right-click the Start button and choose Terminal (Admin) on Windows 11, or Windows PowerShell (Admin) on Windows 10. Click Yes when the prompt asks for permission.
Type powercfg /batteryreport and press Enter. Windows writes an HTML file and prints the full save path, usually in your user folder.
Copy that path from the window. Open File Explorer, paste the path into the address bar and press Enter to open the report in your browser.
Find the Installed batteries section. Note the Design Capacity and the Full Charge Capacity values, both in mWh.
Divide Full Charge Capacity by Design Capacity and multiply by 100. A result near 100 percent means little wear; below about 80 percent means noticeable wear.
Scroll to Battery capacity history to see how full charge capacity has dropped over time. A steep recent fall points to a failing cell.
Check the Battery life estimates section for expected runtime on battery versus design estimates. Short estimates match the fast drain you noticed.
If the numbers look bad, run powercfg /batteryreport again after a month to compare. A steady decline confirms the battery is aging.
Tips and common mistakes
Run the report while the laptop is plugged in and charged, so the readings are current.
A worn battery is a hardware limit; no software setting will restore lost capacity.
Keep the laptop out of direct sun and avoid leaving it at 100 percent charge all day to slow further wear.
If the report shows a sudden drop and the laptop shuts down at 30 percent or more, back up your files before the battery fails completely.
Questions
Where is the battery report saved?
It is saved as battery-report.html in your user folder by default, and the command window shows the exact path. Open that file in any browser to read it.
What battery health percentage is bad?
Below about 80 percent of design capacity, runtime drops noticeably and replacement is worth considering. Below 60 percent, expect very short battery life.
Does this work on a desktop PC?
No. The report only shows battery data on laptops and tablets that have a battery installed.
This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.
