The maximum capacity of a battery changes over time. Because of this change in battery capacity, the charge level indicator in Windows might not show 100% charged. To know the condition of your battery, use the steps in this document to test your battery and calibrate it if necessary. Calibrating the battery resets the battery gauge to accurately display the charge level in Windows. In this document, two methods of testing and calibrating the battery are explained. Also, a manual method for calibrating the battery is presented.
Know all about the hidden challenges of laptop battery repair and how. Process by fully charging and discharging the pack to reset the flags. Dell laptops have a built-in battery that may occasionally fail be detected by the computer, hindering the computer's ability to function properly.
note:Depending on which version of Windows or Diagnostics you are using, the information and graphics in this document might vary slightly.