HP Power Management manual Managing low-battery conditions, Identifying low-battery conditions

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Managing low-battery conditions

The information in this section describes the alerts and system responses set at the factory. Some low- battery condition alerts and system responses can be changed using Power Options in Windows Control Panel. Preferences set using Power Options do not affect lights.

Identifying low-battery conditions

This section explains how to identify low-battery and critical low-battery conditions.

Low-battery condition

When a battery that is the sole power source for the computer reaches a low-battery condition, the battery light blinks in an amber color.

Critical low-battery condition

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

The computer resolves a critical low-battery condition in the following ways:

●If hibernation is enabled and the computer is on or in standby, the computer initiates hibernation.

●If hibernation is disabled and the computer is on or in standby, the computer remains briefly in standby, and then shuts down and loses any unsaved information.

Perform the following task to be sure that hibernation is enabled:

1.Select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate tab.

2.Be sure that the Enable hibernation support check box is selected.

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Contents Power Management First Edition January Document Part Number Table of contents Index Component Description Power control and light locationsPower control and light locations Task Recommended power source Power sourcesConnecting the AC adapter Standby Standby and hibernationHibernation When a reliable power supply is unavailable When you leave your workInitiating standby, hibernation or shutdown Page Using emergency shutdown procedures Power settingsTurning the computer or display on or off Stand by Initiating or resuming from standbySelect Hibernate Initiating or restoring from hibernationAccessing Power Options Properties Power optionsClear the Always show icon on the taskbar check box Displaying the Power Meter iconSetting or changing a power scheme Setting a security prompt Processor performance controls PowerBatteries Inserting or removing a battery Monitoring the charge of the battery Charging a batteryObtaining accurate charge information Displaying charge information on the screenViewing charge displays Identifying low-battery conditions Managing low-battery conditionsLow-battery condition Critical low-battery conditionWhen external power is available Resolving low-battery conditionsWhen a charged battery is available When no power source is availableWhen to calibrate Calibrating a batteryHow to calibrate Charging the batteryDischarging the battery Recharging the battery Conserving power as you work Conserving battery powerSelecting power conservation settings Storing a battery Disposing of a used battery AC adapter Index