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Remove the CMOS battery - CR2032

Use this information to remove the CMOS battery - CR2032.


When replacing the lithium battery, use only Lenovo specified part number or an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of.

Do not:
  • Throw or immerse into water
  • Heat to more than 100°C (212°F)
  • Repair or disassemble

Dispose of the battery as required by local ordinances or regulations.

The battery is a lithium ion battery. To avoid possible explosion, do not burn the battery. Exchange it only with the approved part. Recycle or discard the battery as instructed by local regulations.

About this task



  1. Make preparations for your compute node.
    1. Remove the compute node cover. See Remove the compute node cover.
  2. Remove the CMOS battery - CR2032.
    1. Locate the CMOS battery - CR2032 socket on the system board. SeeSystem board connectors.
    2. If a cover is over the CMOS battery - CR2032, remove the cover.
    3. Pivot the CMOS battery - CR2032 toward the memory module slots.
      Figure 1. CMOS battery - CR2032 removal
      CMOS battery - CR2032 removal
    4. Lift the CMOS battery - CR2032 from the socket.
After you finish

Dispose the component with compliance to local regulations.

Demo video

Watch the procedure on YouTube