Lenovo ThinkCentre A63, Hardware Maintenance Manual

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Figure 12. Closing the card latch
6. To complete the installation, go to “Completing the FRU replacement” on page 97.
Replacing the battery
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the
ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre
Safety and Warranty Guide , go to:
http://www.lenovo.com/support
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.
Refer to the “Lithium battery notice” in the ThinkCentre Safety and Warranty Guide for information about
replacing and disposing of the battery.
To replace the battery, do the following:
1. Remove the computer cover. See “Removing the computer cover” on page 68.
2. Locate the battery. See “Locating parts on the system board” on page 70.
3. Remove the old battery.
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ThinkCentre Hardware Maintenance Manual