Compaq 243850-002 User Manual

The battery that comes with your computer provides power to the 
real-time clock and has a minimum lifetime of about three years. 
When replacing the battery, use a battery equivalent to the battery 
originally installed on your computer. Your 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: Your 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:

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Do not attempt to recharge the battery.

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Do not expose to temperatures higher than 60°C (140ºF).

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Do not disassemble, crush, puncture, short external contacts, or 
dispose of in fire or water.

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Replace the battery only with the 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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Batteries, battery packs, and accumulators should not be disposed of 
together with the general household waste. In order to forward them to 
recycling or proper disposal, please use the public collection system or 
return them to Compaq, their authorized partners, or their agents.