Replacing The Battery; Battery Removal; Battery Installation - Lenovo 6423 Installation Manual

Replacing the battery

Your computer has a special type of memory that maintains the date, time, and
settings for built-in features, such as serial-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 Safety and Warranty Guide for
information about replacing and disposing of the battery.
To change the battery:
1. Turn off the computer and disconnect the power cord from the electrical outlet
2. Open the computer cover. See "Opening the cover" on page 12.
3. Access the system board. See "Accessing system board components and drives"
4. Locate the battery. See "Identifying parts on the system board" on page 9.
5. Remove the old battery. See Figure 12.
Figure 12. Battery removal
6. Install the new battery. See Figure 13.
Figure 13. Battery installation
7. Close the computer cover, and connect the cables. See Chapter 4, "Completing
8. Turn on the computer and all attached devices.
9. Use the Setup Utility program to set the date and time and any passwords. See
24
ThinkStation Hardware Installation and Replacement Guide
and from the computer.
on page 15.
the parts replacement," on page 43.
Note: When the computer is turned on for the first time after battery
replacement, an error message might be displayed. This is normal after
replacing the battery.
ThinkStation User Guide "Using the Setup Utility".