HP Power Management 2 Power sources, WARNING

2 Power sources

The computer runs on internal or external AC power. The following table indicates the best power sources for common tasks.

WARNING! To reduce potential safety issues, use only the AC adapter provided with the computer, a replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.

Task	Recommended power source

Work in most software applications	● Charged battery in the computer
	● External power supplied through one of the following
		devices:
		◦	AC adapter included with the computer
		◦	Optional docking device or expansion product
		◦	Optional power adapter

Charge or calibrate a battery in the computer	External power supplied through one of the following devices:
	● AC adapter included with the computer
	● Optional docking device or expansion product
	●	Optional power adapter
	WARNING! Do not charge the computer battery while you are
	onboard aircraft.

Install or modify system software or write to a CD or DVD	External power supplied through one of the following devices:
	● AC adapter included with the computer
	● Optional docking device or expansion product
	●	Optional power adapter

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Contents

Page Page Table of contents Page 1 Power control and light locations Page 2 Power sources Connecting the AC adapter 3 Standby and hibernation Standby Hibernation Initiating standby, hibernation or shutdown When you leave your work When a reliable power supply is unavailable When using wireless communication, or readable or writable media 4 Power settings Turning the computer or display on or off Using emergency shutdown procedures Initiating or resuming from standby Initiating or restoring from hibernation 5 Power options Accessing Power Options Properties Displaying the Power Meter icon Setting or changing a power scheme Setting a security prompt 6 Processor performance controls 7 Batteries Inserting or removing a battery Charging a battery Monitoring the charge of the battery Obtaining accurate charge information Displaying charge information on the screen Page Managing low-batteryconditions Identifying low-batteryconditions Low-batterycondition Critical low-batterycondition Resolving low-batteryconditions When external power is available When a charged battery is available When no power source is available When the computer cannot restore from hibernation Calibrating a battery When to calibrate How to calibrate Step 1: Charging the battery Step 2: Discharging the battery Step 3: Recharging the battery Conserving battery power Conserving power as you work Selecting power conservation settings Storing a battery Disposing of a used battery Index