Hardware Reference Guide 2–1
2
Battery Replacement
Replacing the Battery
The battery that comes with your computer provides power to the
real-time clock and has a lifetime of about three years. When
replacing the battery, use a battery equivalent to the battery originally
installed on the computer. The computer comes with a 3-volt lithium
coin cell battery.
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The lifetime of the lithium battery can be extended by plugging the
computer into a live AC wall socket. The lithium battery is only used
when the computer is NOT connected to AC power.
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WARNING: This computer contains an internal lithium manganese dioxide
battery. There is a risk of fire and burns if the battery is not handled properly. To
reduce the risk of personal injury:
■ Do not attempt to recharge the battery.
■ Do not expose to temperatures higher than 140°F (60°C)
■ Do not disassemble, crush, puncture, short external
contacts, or dispose of in fire or water.
■ Replace the battery only with the HP/Compaq spare
designated for this product.
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CAUTION: Before replacing the battery, it is important to back up the
computer CMOS settings. When the battery is removed or replaced, the
CMOS settings will be cleared. Refer to the Troubleshooting Guide for
information on backing up the CMOS settings.
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