Lenovo ThinkCentre 3379 User Manual page 37

4. Remove the old battery.
Figure 21. Removing the old battery
5. Install a new battery.
Figure 22. Installing a new battery
6. Reinstall the hard disk drive if removed. See "Replacing the hard disk drive"
on page 24.
7. Close the computer cover and connect the cables. See "Completing the parts
replacement" on page 36.
Note: When the computer is turned on for the first time after replacing the
battery, an error message might be displayed. This is normal after
replacing the battery.
8. Turn on the computer and all attached devices.
9. Use the Setup Utility program to set the date, time, and any passwords. See
Chapter 4, "Using the Setup Utility," on page 49.
Chapter 2. Installing options and replacing hardware
29