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Remove the system battery (CR2032)

Use this information to remove the system battery.


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.

disconnect all power
The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Consider the following when replacing the system battery:
  • Lenovo has designed this product with your safety in mind. The lithium system battery must be handled correctly to avoid possible danger. If you replace the system 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 system battery, you must reconfigure the server and reset the system date and time.

Before removing the system battery:
  1. Power off the server. See Power off the server.

  2. Disconnect power cords from both power supplies, which are located in the rear of the server.

  3. Record the location of the cables in the front of the PCIe adapters that are installed in the I/O expansion cage at the front of the server, and disconnect the cables.

  4. Disconnect the management port cable from the management port in the I/O expansion cage, if necessary.

  5. Loosen the two captive screws located on the front of the server. If necessary, use a P2 screwdriver to loosen the screws.

  6. Pull the server forward until the slide rails click into place.

  7. Remove the top cover. See Remove the top cover.

  8. Remove the drive cage. See Remove the drive cage.

To remove the system battery, complete the following steps:

  1. Locate the system battery. See System board components.
  2. Gently push the top of the battery away from the battery retainer clips to disengage the battery.
  3. Lift the battery from the retainer using your fingers.
    • Failing to remove the system battery properly might damage the socket on the system board. Any damage to the socket might require replacing the system board.

    • Do not tilt or push the system battery by using excessive force.

    Figure 1. Removing the system battery
    System battery removal
After removing the system battery:
  1. Install a new system battery. See Install the system battery (CR2032).

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

Demo video

Watch the procedure on YouTube