HP ProLiant BL20p Generation 3 User Manual page 41

Hardware Options Installation
NOTE: Before removing the battery from the carrier, be sure to unwrap the cable.
Figure 4-11: Removing the battery from the plastic
carrier
NOTE: After removing the battery from the plastic carrier, discard the carrier and the cable.
The only items required for use with the HP ProLiant BL20p Generation 3 server blade are the
battery and the 128-MB Battery-Backed Write Cache Enabler.
4-12 HP ProLiant BL20p Generation 3 Server Blade User Guide