Lenovo ThinkCentre 7515 Hardware Maintenance Manual page 141

To replace the battery:
1. Open the computer cover. See "Opening the computer cover" on page 126.
2. Locate the battery. See "Locating parts on the system board" on page 129.
3. Remove the old battery.
Figure 50. Removing the old battery
4. Install a new battery.
Figure 51. Installing a new battery
5. Reinstall the computer cover and connect the cables. See "Completing the FRU
replacement" on page 155.
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.
6. Turn on the computer and all attached devices.
7. Use the Setup Utility program to set the date, time, and any passwords. See
Chapter 6, "Using the Setup Utility program," on page 51.
Chapter 9. Replacing FRUs - 607
135