How to Generate Battery & Energy Report on Windows 10 / 8 Laptop

March 16th, 2017 by Admin Leave a reply »

Is there a way to check battery health in Windows 10? How to troubleshoot laptop battery drain issues? There is a hidden tool available in Windows 10/8 that can examine your laptop’s battery usage / health, and give you a detailed report for energy efficiency and battery life problems.

Part 1: Generate a Battery Report

  1. Press the Windows key + X to open the Power User menu, then select the “Command Prompt (Admin)” option.
  2. At the elevated Command Prompt, type the following command line and press Enter:
    powercfg /batteryreport /output "C:\battery_report.html"

    generate-battery-report

  3. It will generate a report file named battery_report.html under the root path of C: drive. Double-click on it to review the report in your default browser e.g. Microsoft Edge, Chrome or Firefox.
  4. The most important details in the battery report are the Design Capacity, Full Charge Capacity and Battery capacity history. If you have a new laptop or tablet, it may actually have a higher current Full Charge Capacity than its Design Capacity. That number will decrease over time as the battery chemistry changes.

    battery-report

  5. Under the “Battery capacity history” section, you can see how your battery’s full charge capacity gradually decreased over time compared to its design capacity. If you see a sudden drop, there’s probably a problem with your battery.
  6. battery-capacity-history

Part 2: Generate a Power Efficiency Diagnostic Report

The Power Efficiency Diagnostics will analyze your system for common energy efficiency and battery life problems, and report any errors, warnings, and informational details found.

  1. Press the Windows key + X to open the Power User menu, then select the “Command Prompt (Admin)” option.
  2. At the elevated Command Prompt, type the following command line and press Enter:
    powercfg /energy /output "C:\energy_report.html"

    generate-energy-report

  3. The program will analyze your computer for 60 seconds then produce an HTML report in the root path of C: drive. When it’s done tracing, you’ll see a generated report named engery-report.html, which shows you everything that’s going on with your power configuration, and gives you some ideas as to what prevents your laptop from automatically entering sleep.

    power-efficiency-diagnostic-report