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HP ProBook 4525s HP Notebook Reference Guide - Windows 7 - Page 36

Using battery power, Finding additional battery information in Windows 7

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Using battery power WARNING! To reduce potential safety issues, use only the battery provided with the computer, a replacement battery provided by HP, or a compatible battery purchased from HP. The computer runs on battery power whenever it is not plugged into external AC power. Computer battery life varies, depending on power management settings, running programs, display brightness, external devices connected to the computer, and other factors. Keeping the battery in the computer whenever the computer is plugged into AC power charges the battery and also protects your work in case of a power outage. If the computer contains a charged battery and is running on external AC power, the computer automatically switches to battery power if the AC adapter is disconnected from the computer or an AC power loss occurs. NOTE: When you disconnect AC power, the display brightness is automatically decreased to save battery life. For information on increasing or decreasing display brightness, refer to the Getting Started guide. Select computer models can switch between graphic modes to increase battery life. For more information, refer to Switching between graphics modes (select models only) on page 31. Finding additional battery information in Windows 7 NOTE: The following information is not supported on Windows XP. Help and Support provides the following tools and information about the battery: ● Battery Check tool to test battery performance ● Information on calibration, power management, and proper care and storage to maximize battery life ● Information on battery types, specifications, life cycles, and capacity To access battery information: ▲ Select Start > Help and Support > Learn > Power Plans: Frequently Asked Questions. Finding additional battery information in Windows Vista NOTE: The following information is not supported on Windows XP. Help and Support provides the following tools and information about the battery: ● Battery Check tool to test battery performance ● Information on calibration, power management, and proper care and storage to maximize battery life ● Information on battery types, specifications, life cycles, and capacity To access battery information: ▲ Select Start > Help and Support > Learn > Power Plans: Frequently Asked Questions. Using Battery Check in Windows 7 NOTE: The following information is not supported on Windows XP. Battery Check in Help and Support provides information on the status of the battery installed in the computer. 26 Chapter 4 Power management

Section	Page
Introduction	11
Finding more information about your new computer	11
Networking (select models only)	12
Creating a wireless connection	12
Identifying wireless and network status icons	12
Turning wireless devices on or off	14
Using the wireless button	14
Using HP Wireless Assistant (select models only) to turn wireless devices on or off	14
Using HP Connection Manager (select models only)	15
Using operating system controls	15
Using a WLAN	16
Connecting to an existing WLAN	16
Setting up a new WLAN	17
Protecting your WLAN	18
Roaming to another network	18
Using HP Mobile Broadband (select models only)	18
Inserting a SIM	19
Removing a SIM	19
Using GPS (select models only)	19
Using Bluetooth wireless devices	20
Bluetooth and Internet Connection Sharing (ICS)	20
Connecting to a wired network	20
Using a modem (select models only)	20
Connecting a modem cable	20
Connecting a country- or region-specific modem cable adapter	21
Selecting a location setting	22
Viewing the current location selection	22
Adding new locations when traveling	22
Connecting to a local area network (LAN) (select models only)	24
Multimedia	26
Using the media activity controls	26
Audio	26
Adjusting the volume	26
Checking audio functions on the computer	27
Webcam (select models only)	28
Using SkyRoom (select models only)	28
Video	28
VGA	29
DisplayPort	29
HDMI	30
Configuring audio for HDMI	30
Power management	31
Shutting down the computer	31
Setting power options	32
Using power-saving states	32
Initiating and exiting Sleep	32
Initiating and exiting Hibernation	32
Using the power meter	33
Using power plans	33
Viewing the current power plan	33
Selecting a different power plan	33
Customizing power plans	34
Setting password protection on wakeup	34
Using Power Assistant (select models only)	35
Starting Power Assistant	35
Using battery power	36
Finding additional battery information in Windows 7	36
Finding additional battery information in Windows Vista	36
Using Battery Check in Windows 7	36
Using Battery Check in Windows Vista	37
Displaying the remaining battery charge	37
Maximizing battery discharge time	37
Managing low battery levels	38
Identifying low battery levels	38
Resolving a low battery level	38
Resolving a low battery level when external power is available	38
Resolving a low battery level when a charged battery is available	38
Resolving a low battery level when no power source is available	38
Resolving a low battery level when the computer cannot exit Hibernation	39
Conserving battery power	39
Storing a battery	39
Disposing of a used battery	39
Replacing the battery in Windows 7	39
Replacing the battery in Windows Vista	39
Using external AC power	40
Testing an AC adapter	41
Switching between graphics modes (select models only)	41
External cards and devices	42
Using Digital Media Slot cards (select models only)	42
Inserting a digital card	42
Removing a digital card	42
Using PC Cards (select models only)	43
Configuring a PC Card	43
Inserting a PC Card	44
Removing a PC Card	45
Using ExpressCards (select models only)	45
Configuring an ExpressCard	45
Inserting an ExpressCard	46
Removing an ExpressCard	47
Using smart cards (select models only)	47
Inserting a smart card	48
Removing a smart card	48
Using a USB device	48
Connecting a USB device	49
Removing a USB device	49
Using 1394 devices (select models only)	49
Connecting a 1394 device	50
Removing a 1394 device	50
Using an eSATA device (select models only)	50
Connecting an eSATA device	50
Removing an eSATA device	51
Using a serial device (select models only)	51
Using optional external devices	53
Using optional external drives	53
Using the expansion port (select models only)	53
Using the docking connector (select models only)	54
Drives	55
Handling drives	55
Using hard drives	55
Improving hard drive performance	55
Using Disk Defragmenter	55
Using Disk Cleanup	56
Using HP 3D DriveGuard (select models only)	56
Identifying HP 3D DriveGuard status	57
Managing power with a parked hard drive	57
Using HP 3D DriveGuard software	58
Using optical drives (select models only)	58
Identifying the installed optical drive	58
Inserting an optical disc	59
Tray load	59
Slot load	59
Removing an optical disc	60
Tray load	60
When the disc tray opens normally	60
When the disc tray fails to open normally	60
Slot load	61
Sharing optical drives	62
Using RAID (select models only)	62
Security	63
Protecting the computer	63
Using passwords	64
Setting passwords in Windows	64
Setting passwords in Computer Setup	64
Managing a BIOS administrator password	65
Entering a BIOS administrator password	67
Managing a Computer Setup DriveLock password	67
Setting a DriveLock password	68
Entering a DriveLock password	69
Changing a DriveLock password	70
Removing DriveLock protection	71
Using Computer Setup Auto DriveLock	71
Entering an Automatic DriveLock password	71
Removing Automatic DriveLock protection	72
Using antivirus software	72
Using firewall software	72
Installing critical security updates	73
Using HP ProtectTools Security Manager (select models only)	73
Installing an optional security cable	73
Using the fingerprint reader (select models only)	74
Locating the fingerprint reader	74
Computer Setup	75
Starting Computer Setup	75
Using Computer Setup	75
Navigating and selecting in Computer Setup	75
Restoring factory settings in Computer Setup	76
Updating the BIOS	76
Determining the BIOS version	76
Downloading a BIOS update	77
MultiBoot	79
About the boot device order	79
Enabling boot devices in Computer Setup	79
Considering boot order changes	80
Choosing MultiBoot preferences	81
Setting a new boot order in Computer Setup	81
Dynamically choosing a boot device using the F9 prompt	81
Setting a MultiBoot Express prompt	82
Entering MultiBoot Express preferences	82
Management and Printing	83
Using Client Management Solutions	83
Configuring and deploying a software image	83
Managing and updating software	83
HP Client Manager for Altiris (select models only)	84
HP CCM (Client Configuration Manager) (select models only)	85
HP SSM (System Software Manager)	86
Using Intel Active Management Technology (select models only)	86
Enabling the iAMT solution	86
Using the MEBx setup utility menus	86
Using the HP Universal Print Driver (select models only)	87
Traveling with the computer	89
Troubleshooting resources	90
Electrostatic Discharge	91

Match case Limit results 1 per page

Using battery power

WARNING!

To reduce potential safety issues, use only the battery provided with the computer, a

replacement battery provided by HP, or a compatible battery purchased from HP.

The computer runs on battery power whenever it is not plugged into external AC power. Computer

battery life varies, depending on power management settings, running programs, display brightness,

external devices connected to the computer, and other factors. Keeping the battery in the computer

whenever the computer is plugged into AC power charges the battery and also protects your work in

case of a power outage. If the computer contains a charged battery and is running on external AC power,

the computer automatically switches to battery power if the AC adapter is disconnected from the

computer or an AC power loss occurs.

NOTE:

When you disconnect AC power, the display brightness is automatically decreased to save

battery life. For information on increasing or decreasing display brightness, refer to the

Getting

Started

guide. Select computer models can switch between graphic modes to increase battery life. For

more information, refer to

Switching between graphics modes (select models only)

on page

Finding additional battery information in Windows 7

NOTE:

The following information is not supported on Windows XP.

Help and Support provides the following tools and information about the battery:

●

Battery Check tool to test battery performance

●

Information on calibration, power management, and proper care and storage to maximize battery

life

●

Information on battery types, specifications, life cycles, and capacity

To access battery information:

▲

Select

Start

Help and Support

Learn

Power Plans: Frequently Asked Questions

Finding additional battery information in Windows Vista

NOTE:

The following information is not supported on Windows XP.

Help and Support provides the following tools and information about the battery:

●

Battery Check tool to test battery performance

●

Information on calibration, power management, and proper care and storage to maximize battery

life

●

Information on battery types, specifications, life cycles, and capacity

To access battery information:

▲

Select

Start

Help and Support

Learn

Power Plans: Frequently Asked Questions

Using Battery Check in Windows 7

NOTE:

The following information is not supported on Windows XP.

Battery Check in Help and Support provides information on the status of the battery installed in the

computer.

Chapter 4

Power management