IBM i 830 Repair Manual page 699

The following safety notice pertains to the 2763 and 2778 Cache Battery Packs.
CAUTION:
The battery is a nickel metal hydride battery. To avoid possible explosion, do
not burn. Exchange only with the IBM-approved part. Recycle or discard the
battery as instructed by local regulations.
In the United States, IBM has a process for the collection of this battery. For
information, call 1-800-426-4333. Have the IBM part number for the battery unit
available when you call. (RSFTC244)
Attention: All cards are sensitive to electrostatic discharge (see "Appendix C.
Working with Electrostatic Discharge-Sensitive Parts" on page 955).
1. Remove the card using the concurrent card removal and replacement procedure
for the model or FC that you are working on (see "Chapter 4. Removal and
Installation Procedures" on page 617).
Note: If the concurrent card removal procedure fails, then power the system
down normally prior to replacing the cache battery pack. (See "Powering
On and Powering Off the System and Logical Partitions" on page 922.)
2. Locate the casing A that holds the battery pack. See Figure 23 on page 686.
3. Squeeze the casing A to remove battery unit from the card.
4. Remove the plug that connects the battery unit and the card.
Note: The plug fits in the board only one way so it can not be inserted
incorrectly during the replacement phase.
5. Remove the battery unit from the battery casing.
Note: Save the battery casing. The replacement battery pack will not come
equipped with a casing.
6. Install the new cache battery pack by reversing the procedure.
Remove and Replace Procedures
Chapter 4. Removal and Installation Procedures
685