HP 280 G1 Specifications download pdf (Page 126)

A Battery replacement

The battery installed on the computer provides power to the real-time clock. When replacing the battery, use

a battery equivalent to the battery originally installed on the computer. The computer has a 3-volt lithium

coin cell battery installed.

WARNING! The 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 60°C (140ºF).

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

Replace the battery only with the HP spare designated for this product.

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.

Static electricity can damage the electronic components of the computer or optional equipment. Before

beginning these procedures, ensure that you are discharged of static electricity by briefly touching a

grounded metal object.

NOTE: 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.

HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable

batteries. For more information about recycling programs, go to

http://www.hp.com/recycle.

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board as long as

the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to

the internal components of the computer.

5. Remove the access panel.

6. Locate the battery and battery holder on the system board.

7. To release the battery from its holder, squeeze the metal clamp that extends above one edge of the

battery. When the battery pops up, lift it out (1).

118 Appendix A Battery replacement

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HP 280 G1 Specifications Page 126