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How to Generate a Battery Report in Windows 11 (Complete Guide 2026)
If you want to check battery health, charging history, or battery capacity on your Windows 11 laptop, the built-in Battery Report tool is one of the most useful diagnostics available.
Using a simple command, Windows can generate a detailed report showing battery performance, wear level, charge cycles, and usage history.
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| Generate and analyze a Windows 11 battery report to check battery health, capacity, usage history, and charge cycles. |
This guide explains exactly how to create and understand a battery report in Windows 11.
Related article: How to Check Battery Health in Windows 11
What Is a Battery Report?
A Battery Report is an HTML file generated by Windows that contains detailed battery information.
It can help you:
- Check battery health
- Measure battery wear
- Review charge history
- Analyze battery usage
- Diagnose battery problems
Step 1: Open Command Prompt as Administrator
Click the Start menu and search for:
Command Prompt
Right-click it and select:
Run as administrator
Step 2: Generate the Battery Report
Type the following command:
powercfg /batteryreport
Press Enter.
You should see a message similar to:
Battery life report saved to file path
Step 3: Locate the Report
By default, the report is saved as:
C:\Users\YourUsername\battery-report.html
Open the file using any web browser.
How to Save the Report to a Custom Location
You can specify a different location using:
powercfg /batteryreport /output "C:\BatteryReport.html"
This is useful if you want easier access to the file.
Understanding the Battery Report
The report contains several important sections.
Installed Batteries
This section shows:
- Battery model
- Manufacturer
- Design capacity
- Full charge capacity
| Metric | Example |
|---|---|
| Design Capacity | 50,000 mWh |
| Full Charge Capacity | 45,000 mWh |
The closer these numbers are, the healthier the battery.
Recent Usage
This section tracks:
- Active usage
- Sleep periods
- Connected standby
- Battery drain patterns
It helps identify abnormal battery consumption.
Battery Usage
The Battery Usage section shows:
- Daily battery consumption
- Power source history
- Discharge activity
This data is useful for troubleshooting battery drain issues.
Related article: Why Is My Laptop Battery Draining Fast on Windows 11?
Battery Capacity History
This section records battery capacity changes over time.
You can see whether battery health is gradually declining.
A healthy battery typically loses capacity slowly over several years.
Battery Life Estimates
Windows estimates how long your laptop can run based on:
- Current battery condition
- Historical usage patterns
- Power consumption trends
This section provides realistic battery life expectations.
How to Calculate Battery Health
Use this formula:
(Full Charge Capacity ÷ Design Capacity) × 100
Example:
45,000 ÷ 50,000 × 100 = 90%
Battery Health = 90%
Related article: How to Check Battery Health in Windows 11
Common Battery Health Ratings
| Battery Health | Status |
|---|---|
| 90% - 100% | Excellent |
| 80% - 89% | Good |
| 70% - 79% | Fair |
| Below 70% | Poor |
How Often Should You Generate a Battery Report?
- Monthly for aging batteries
- Every few months for normal users
- Before buying a used laptop
- When troubleshooting battery issues
Ways to Improve Battery Performance
- Reduce screen brightness
- Disable unnecessary startup apps
- Limit background activity
- Use Battery Saver mode
- Keep Windows updated
Related article: How to Improve Battery Life on Windows 11
Frequently Asked Questions
Does Windows 11 have a battery report tool?
Yes. The powercfg utility includes a built-in battery reporting feature.
Can a battery report show battery health?
Yes. It displays design capacity and full charge capacity, allowing you to estimate battery health.
Is the battery report accurate?
In most cases, yes. However, battery calibration may improve accuracy.
Final Thoughts
Generating a battery report in Windows 11 is one of the easiest ways to monitor battery health, track wear, and diagnose battery-related issues.
The built-in powercfg tool provides detailed information without requiring third-party software.
By reviewing your battery report regularly, you can identify problems early and take steps to maximize battery life and performance.