IBM System x3550 M4 Installation And Service Manual page 313

5. Remove the system battery:
Figure 188. System battery removal
a. If there is a rubber cover on the battery holder, use your fingers to lift the
battery cover from the battery connector.
b. Use one finger to tilt the battery horizontally out of its socket, pushing it
away from the socket.
Attention: Neither tilt nor push the battery by using excessive force.
Figure 189. System battery removal
c. Use your thumb and index finger to lift the battery from the socket.
Attention: Do not lift the battery by using excessive force. Failing to
remove the battery properly may damage the socket on the system board.
Any damage to the socket may require replacing the system board.
6. Dispose of the battery as required by local ordinances or regulations. See the
IBM Environmental Notices and User's Guide on the IBM Documentation CD for
more information.
Chapter 6. Removing and replacing components
295