HP ProLiant DL180 Gen9 User Manual page 69

Disconnect each power cord from the power source.
a.
Disconnect each power cord from the server.
b.
Do one of the following:
3.
Extend the server from the rack (on page 20).
o
Remove the server from the rack (on page 22).
o
Remove the access panel (on page 24).
4.
Remove the battery pack holder.
5.
Install the HP Smart Storage Battery in the holder.
6.
Hardware options installation 69