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Remove the CMOS battery (CR2032)

Follow instructions in this section to remove the CMOS battery (CR2032).

About this task

S004
Attention
CAUTION

When replacing the lithium battery, use only Lenovo specified part number or an equivalent type of 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.

S005
Attention
CAUTION
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.
Attention
  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.
  • Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.
  • The following notes describe information that you must consider when replacing the battery.
    • 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 server and reset the system date and time.

Procedure

  1. Make preparation for this task.
    1. Remove the 2U compute shuttle. See Remove the 2U compute shuttle.
    2. If applicable, remove the PCIe riser assembly 2. See Remove a PCIe riser assembly.
  2. Locate the battery socket on the system board assembly.
  3. Pivot the CMOS battery away from the seat, and lift the CMOS battery out of the battery socket.
    Figure 1. CMOS battery removal
    CMOS battery removal

After you finish

Dispose the component with compliance to local regulations.