Lenovo 30BX, User Manual, Page: 108 / 150

The coin-cell battery normally requires no charging or maintenance throughout its life; however, no battery
lasts forever. If the coin-cell 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 coin-cell battery notice” in the Safety, Warranty, and Setup Guide for information about
disposing of the coin-cell battery.
To remove and install the coin-cell battery, do the following:
1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 61.
2. Locate the coin-cell battery. See “Parts on the system board” on page 6.
3. Remove any PCIe cards that might prevent your access to the coin-cell battery. See “PCIe card” on
page 64.
4. Remove the old coin-cell battery as shown.
Figure 72. Removing the coin-cell battery
5. Install the new coin-cell battery as shown.
Figure 73. Installing the coin-cell battery
6. Reinstall the PCIe cards if you have removed them. See “PCIe card” on page 64.
7. Reinstall the computer cover and reconnect the cables. See “Completing the parts replacement” on
page 108.
Note: When the computer is turned on for the first time after the coin-cell battery is replaced, an error
message might be displayed. This is normal after the coin-cell battery is replaced.
8. Turn on the computer and all attached devices.
9. Use the Setup Utility program to set the date, time, and any passwords. See “Using the Setup Utility
program” on page 35.
Cover presence switch
Attention: Do not open your computer or attempt any repair before reading and understanding the “Read
this first: Important safety information” on page v.
To remove or install the cover presence switch, do the following:
94
P520c User Guide