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Replacing the system battery

Before you install the system battery, complete the following steps:

  1. Read the safety information in Safety and Installation guidelines.

  2. If the compute node is installed in a Lenovo ThinkServer n400 Enclosure Type 5495, remove it (see Removing a compute node from a chassis for instructions).
  3. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with the bezel pointing toward you.

The following notes describe information that you must consider when replacing the system battery in the server.

  • When replacing the system battery, you must replace it with a lithium battery of the same type from the same manufacturer.
  • After you replace the system-board battery, you must reconfigure the server and reset the system date and time.
  • To avoid possible danger, read and follow the following safety statement.
Statement 2

CAUTION

When replacing the lithium battery, use only Lenovo Part Number 33F8354 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 install the replacement system battery, complete the following steps:

  1. Follow any special handling and installation instructions that come with the replacement battery.
  2. Remove the compute node (see Removing a compute node from a chassis).
  3. If necessary, lift the node and SATA cable out of the way (see Removing the node SATA cable).
  4. Insert the new battery:
    1. Orient the battery so that the positive side faces up.
    2. Tilt the battery so that you can insert it into the socket on the side opposite the battery clip.
      Figure 1. System battery installation
      System battery installation
    3. Press the battery down into the socket until it clicks into place. Make sure that the battery clip holds the battery securely.
  5. Reinstall the node SATA cable (see Installing the node SATA cable).
  6. Reinstall compute node (see Installing a compute node in a chassis).
  7. Slide the server into the Lenovo ThinkServer n400 Enclosure Type 5495.
  8. Turn on the server.