Identifying low battery levels, Resolving a low battery level – HP EliteBook 8440p User Manual

Page 80

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Identifying low battery levels

When a battery that is the sole power source for the computer reaches a low battery level, the battery
light blinks.

If a low battery level is not resolved, the computer enters a critical battery level, and the battery light
blinks rapidly.

The computer takes the following actions for a critical battery level:

If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates
Hibernation.

If Hibernation is disabled and the computer is on or in the Sleep state, the computer remains briefly
in the Sleep state, and then shuts down and loses any unsaved information.

Resolving a low battery level

CAUTION:

To reduce the risk of losing information when the computer reaches a critical battery level

and has initiated Hibernation, do not restore power until the power lights turn off.

Resolving a low battery level when external power is available

Connect one of the following devices:

AC adapter

Optional expansion product or docking device

Optional power adapter

Resolving a low battery level when a charged battery is available

1.

Turn off the computer or initiate Hibernation.

2.

Remove the discharged battery, and then insert a charged battery.

3.

Turn on the computer.

Resolving a low battery level when no power source is available

Initiate Hibernation.

– or –

Save your work and shut down the computer.

Resolving a low battery level when the computer cannot exit Hibernation

When the computer lacks sufficient power to exit Hibernation, follow these steps:

1.

Insert a charged battery or plug the computer into external power.

2.

Exit Hibernation by briefly pressing the power button.

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Chapter 5 Power management

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