Replacing The Battery - Lenovo 10A4 Hardware Maintenance Manual

Figure 44. Installing the front USB assembly
9. Connect the cable of the new front USB assembly to the front USB connector 2 on the system board.
See "Locating parts on the system board" on page 73.
10. Reinstall the front bezel. See "Removing and reinstalling the front bezel" on page 92.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 150.

Replacing the battery

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Safety information" on page 1.
This section provides instructions on how to replace the battery.
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 coin cell battery notice" in the Safety, Warranty, and Setup Guide for information about
replacing and disposing of the battery.
To replace the battery, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 91.
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ThinkCentre M83 and M93/p Hardware Maintenance Manual