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To replace the battery:

1Restart your computer.

2During the restart, press and hold the F1 key. The main menu of the BIOS Setup utility opens.

3Write down all values in the menus and submenus, then exit from the utility.

Caution

Any custom BIOS settings you have made will be lost when you remove the system battery. All settings will return to their factory defaults.

4Shut down your computer.

5Remove the side panel by following the instructions in “Removing the side panel” on page 35.

6For more stability, place your computer on its side. To avoid scratching the case, place it on a towel or other non-abrasive surface.

7Locate the old battery on the system board and note its orientation. You will need to install the new battery the same way.

Important

Your computer’s battery location may vary from the illustration

below.

Battery release tab

8Push the battery release tab. The battery pops out of the socket.

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