How to test the laptop ac power adapter

Connect the output cord from the AC adapter to the notebook and plug the power cord into a working electrical outlet. Perform one or more of the following tasks to check the operation of the AC power adapter.
Check the power icon in the system tray.

  • If the icon resembles a power cord, and if moving the cursor over the icon displays the On AC Power message, the AC adapter is operating properly.
  • If the icon resembles a battery when the AC adapter is connected, the adapter is defective.

Check if the AC power adapter can operate the notebook when the battery is removed.
  1. Do a normal shutdown of the PC.
  2. Remove the battery from the Notebook.
  3. Connect the power adapter and press the Power button to start the notebook.
  • If the PC does not start and operate normally, the AC adapter is defective and must be replaced.
  • If the PC does start and operate normally, the AC adapter is working properly


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