How To Check Battery Performance On Laptop. Plug your power cord back into your laptop. To test battery life my advice is to fully charge your laptop and then let the game run on loop.

After all were here to help you. The Battery Test Page appears on your screen. In the Recent usage section take note of each time the laptop ran on battery power or was attached to AC power.
Once youve given permission in the pop-up window a coding document will open.
Type powercfg batteryreport and press Enter. Wait for the process to finish. You should follow the steps mentioned in the following methods to check the battery health on your Dell laptop. When the Start Up menu appears choose System Diagnostics.

