Replacing The Battery - Lenovo ThinkCentre 7515 Hardware Maintenance Manual

Figure 49. Installing the adapter card
5. Rotate the adapter retainer to the closed position.

Replacing the battery

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 battery notice" in the ThinkCentre Safety and Warranty Guide
for information about replacing and disposing of the battery.
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Hardware Maintenance Manual
What to do next:
v To work with another option, go to the appropriate section.
v To complete the installation, go to "Completing the FRU replacement" on
page 155.
Attention
Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" in the ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
http://www.lenovo.com/support