HP 20 MODULAR SMART ARRAY User Manual page 33

Replacing Enclosure Components
To replace the lower battery pack:
1. Remove the upper battery unit. (You do not need to dismantle the upper unit
unless you must also replace the upper battery pack.)
2. Remove the cache board.
a. Open the ejector levers on each side of the memory module socket (1).
b. Pull the cache board out of the socket (2).
3. Push the plastic retainer tabs through to the other side of the cache board (3).
4. Lift the battery pack off the cache board.
To install the replacement lower battery pack, reverse the previous steps.
5-6 HP StorageWorks Modular Smart Array 20 User Guide