How to Check Laptop Battery Health in Windows 11

Hidden Windows Battery Diagnostic Tool

Windows 11 includes a hidden battery diagnostic utility that generates a detailed HTML report revealing exact battery wear, original design capacity, and full charge capacity.

Step-by-Step Battery Report Generation:

1. Open Command Prompt as Administrator: Press Win + X and select Terminal (Admin) or Command Prompt (Admin).
2. Type Command: Type powercfg /batteryreport and hit Enter.
3. Open HTML File: Open File Explorer and navigate to C:\Users\YourName\battery-report.html in any web browser.
4. Analyze Capacity Wear: Compare Full Charge Capacity against Design Capacity. If full charge capacity is under 60% of design capacity, replacing the battery will restore original off-grid runtime.

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