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Remove the CMOS battery - CR2032

Use this information to remove the CMOS battery - CR2032.

Before you remove the CMOS battery - CR2032, complete the following steps:
  1. Read Installation Guidelines to ensure that you work safely.

  2. Power off the corresponding compute node that you are going to perform the task on.

  3. Remove the compute node from the chassis (see Remove the compute node from the chassis).

  4. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with the bezel pointing toward you.
  5. Remove the compute node cover (see Remove the compute node cover).

The following notes describe information that you must consider when you are replacing the CMOS battery - CR2032 in the compute node:

To avoid possible danger, read and follow the following safety statement.


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.

To remove the CMOS battery - CR2032, complete the following steps:

  1. Locate the CMOS battery - CR2032 socket on the system board (see System-board connectors).
  2. If a cover is over the CMOS battery - CR2032, remove the cover.
  3. Pivot the CMOS battery - CR2032 toward the middle of the compute node.
    Figure 1. CMOS battery - CR2032 removal
    CMOS battery - CR2032 removal
  4. Lift the CMOS battery - CR2032 from the socket.

If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

Demo video

Watch the procedure on YouTube