Replacing The Battery - Lenovo ThinkCentre M78 Hardware Maintenance Manual

7. Insert the two plastic tabs in the new power switch unit through the hole on the chassis, and then press
the power switch unit as shown until it snaps into position.
Figure 91. Installing the new power switch unit
8. Reconnect the power switch cable to the system board. See "Locating parts on the system board"
on page 77.
9. Reinstall the front bezel. See "Removing and reinstalling the front bezel" on page 136.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 187.

Replacing the battery

Attention:
Do not open your computer or attempt any repair before reading and understanding "Important safety information"
on page 1.
Your computer has a special type of memory that maintains the date, time, and settings for built-in features,
such as parallel-port assignments (configuration). A battery keeps this information active when you turn
off the computer.
The battery normally requires no charging or maintenance throughout its life; however, no battery lasts
forever. If the battery fails, the date, time, and configuration information (including passwords) are lost. An
error message is displayed when you turn on the computer.
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ThinkCentre M78 Hardware Maintenance Manual