Replacing The Battery - Lenovo ThinkCentre A70 7099 Hardware Maintenance Manual

Figure 48. Installing the memory module
10. To complete the installation or replacement, go to "Completing the parts

Replacing the battery

Your computer has a special type of memory that maintains the date, time, and
configuration information for built-in features. The 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.
Before performing the following procedure, be sure to read and understand the
information about replacing and disposing of the battery in the "Batteries" and
"Lithium battery notice" sections of the ThinkCentre Safety and Warranty Guide.
To replace the battery, do the following:
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Hardware Maintenance Manual
8. Position the new memory module over the memory slot. Make sure that the
notch 1 on the new memory module is aligned with the key 2 in the
memory slot. Then, press the new memory module straight down into the
memory slot until the retaining clips close and the new memory module
snaps into position.
9. Reinstall any parts and reconnect any cables that have been removed or
disconnected.
replacement" on page 157.
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
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
122.