HP (Hewlett-Packard) 799UT#ABA Personal Computer User Manual


 
Battery
NOTE: Read Warnings and cautions on page 59 before servicing this component.
This section describes how to remove and install the battery.
The battery that comes with the workstation provides power to the real-time clock and has a minimum
lifetime of about three years.
WARNING! This workstation includes a lithium battery. There is a risk of fire and chemical burn if the
battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in
water or fire, or expose it to temperatures higher than 60°C (140°F).
CAUTION: Before removing the battery, back up the CMOS settings in case they are lost when the
battery is removed. To back up the CMOS settings, select the Save to Diskette option in the Computer
Setup (F10) Utility.
NOTE: Do not dispose of batteries, battery packs, and accumulators with general household waste.
Removing the battery
To remove the battery:
1. Disconnect power from the workstation (see
Predisassembly procedures on page 66).
2. Remove the side access panel (see
Removing the side access panel on page 69).
3. On the system board, press the release tab of the battery holder.
4. Pull the tab
on the battery holder, and then lift it straight up
2
as shown in the following figure.
Installing the battery
To install the battery:
1. Confirm the polarity (positive or negative) of the battery to position it correctly in the battery holder.
2. Place the battery edge under the plastic housing tab and press gently until it snaps into place.
96 Chapter 5 Replacing components ENWW