Check Laptop Battery Health on Windows (Battery Report)

Windows can build a detailed battery health report with one command. It shows how much capacity your battery has lost, so you know whether a short battery life is the battery or something else.

1. Open Terminal

Right-click Start and pick Terminal (or open Command Prompt). Admin rights are not needed.

Right-click Start > Terminal

2. Create the report

Run this command. Windows saves battery-report.html and prints where it saved it, usually your user folder.

powercfg /batteryreport

3. Open the report

Open battery-report.html in your browser. To save it somewhere easier to find, add an output path.

powercfg /batteryreport /output "%USERPROFILE%\Desktop\battery-report.html"

4. Read the two numbers that matter

Under Installed batteries, compare DESIGN CAPACITY with FULL CHARGE CAPACITY. Full charge divided by design is your battery health. Around 80% or lower means the battery has worn and a replacement will bring back the runtime. The Battery capacity history section shows how fast it is dropping.

health = FULL CHARGE CAPACITY / DESIGN CAPACITY

FAQ

Does the battery report work on desktop PCs?

Only on PCs with a battery. A desktop has no battery, so the report has nothing to show.

My battery is at 70%. Should I replace it?

If the runtime no longer gets you through your day, yes. Batteries are consumable; most laptops are designed for a few hundred full charge cycles before capacity drops noticeably.