New Replacement ASUS ADP-40TH_A 19V 2.37A AC Adapter

This ASUS laptop charger comes with a full 12 month warranty. A free mains lead is also included with every laptop charger.Every ASUS laptop charger we sell is sent by courier signed delivery.

The ASUS ADP-40TH_A AC adapter is used to recharge the battery in a notebook and to provide dependable power for operating the notebook for long periods of time. If an AC adapter fails it will not recharge the battery and it will not provide power to operate the notebook without a battery.

Test the ASUS ADP-40TH_A AC 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.

1. Check the power icon in the system tray.
2. 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.
3. If the icon resembles a battery when the AC adapter is connected, the adapter is defective.
4. Check if the AC power adapter can operate the notebook when the battery is removed.
5. Do a normal shutdown of the PC.
6. Remove the battery from the Notebook.
7. Connect the ASUS power adapter and press the Power button to start the notebook.
8. If the PC does not start and operate normally, the AC adapter is defective and must be replaced.
9. If the PC does start and operate normally, the AC adapter is working properly.

Determine the ASUS ADP-40TH_A AC Adapter Part Number

1. Different notebook models require different AC adapters. You will need to know the Product Number of your notebook to determine the Part Number of the replacement part. 
2. Perform one of the following tasks to find the Product Number of your notebook.
3. Click Start, then click Help & Support. The product name, product number, and serial number of the notebook are displayed in the upper left hand corner of the Help and Support home page.
4. If the Notebook computer is not powered on, turn it over and locate the ASUS Service Tag fastened to the back of the notebook. The Product Number (P/N) is printed on this tag. On some Notebook computers, the ASUS Service Tag is located inside the battery compartment. Remove the battery from the Notebook to view the ASUS Service Tag information.