Hitachi 2000 Series Hardware Reference Manual page 35

1. Remove the five countersunk screws and one pan-head screw that hold the access
cover. Carefully set aside the fasteners for later reassembly.
2. Slide off the cover, and remove the battery pack from the PSU case.
Set aside the old battery pack for proper disposal in accordance with applicable
environmental regulations.
3. Pull the connector from the mating battery charger receptacle on the charger
card.
4. Insert the new battery pack with the metal surface facing towards the inside of the
PSU.
5. Align the battery pack connector so that the protruding tab faces the rear of the
PSU module.
Hardware Reference
Hitachi High-performance NAS Platform Components
23