Figure 37. CMOS battery location
1 CMOS battery
The following notes describe information that you must consider when replacing the battery.
• Remove the CMOS battery will cause system lockdown. To unlock the system, contact Lenovo Support
for more information.
• Lenovo has designed this product with your safety in mind. The lithium battery must be handled correctly
to avoid possible danger. If you replace the battery, you must adhere to the following instructions.
• If you replace the original lithium battery with a heavy-metal battery or a battery with heavy-metal
components, be aware of the following environmental consideration. Batteries and accumulators that
contain heavy metals must not be disposed of with normal domestic waste. They will be taken back free
of charge by the manufacturer, distributor, or representative, to be recycled or disposed of in a proper
manner.
• After you replace the battery, you must reconfigure the solution and reset the system date and time.
To remove the CMOS battery, complete the following steps:
Watch the procedure
A video of this procedure is available at YouTube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-
DkEpH4SzvKZck4f6rVRzUE
.
Step 1. Press the battery clip in the direction as shown.
Step 2. Carefully tilt and lift CMOS battery out of the socket.
Attention: Do not use excessive force to tilt or push the battery, it might damage the socket.
54
ThinkSystem SE350 and ThinkSystem SE350 Enclosures Maintenance Manual
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