How to Check Laptop Battery Health on Windows

Windows provides built-in tools to monitor your laptop battery's health and performance. This data reveals your battery's current capacity compared to its original design capacity and helps determine if replacement is needed.

1. Open Command Prompt as Administrator. Press Windows + X and select Terminal (Admin) or Command Prompt (Admin). If using Windows 10, you can also right-click the Start button and choose Windows PowerShell (Admin). Click Yes when prompted by User Account Control.
2. Generate the battery report. Type powercfg /batteryreport and press Enter. Windows will create an HTML battery report and display the file path where it's saved, typically C:\Users\[YourUsername]\battery-report.html. The command completes in seconds.
3. Open the battery report. Navigate to the file path shown in Command Prompt and double-click battery-report.html. The report opens in your default web browser with detailed battery information including design capacity, current capacity, and charge cycles.
4. Check design vs. full charge capacity. Scroll to the Installed Batteries section and compare Design Capacity to Full Charge Capacity. The Full Charge Capacity shows your battery's current maximum capacity. A significant difference indicates battery degradation.
5. Review battery usage history. Scroll down to Battery Usage for a three-day usage summary and Battery Capacity History for long-term capacity trends. The Recent Usage section shows detailed charge and drain cycles with timestamps and power states.
6. Check battery health in Settings. Open Settings (Windows + I), go to System > Power & battery, then click Battery usage. While less detailed than the battery report, this shows current charge level and recent app battery usage for quick health monitoring.