HP LQ164AW, WX557AV, LQ174AW, LJ527UT manual Conserving battery power, Resolving a low battery level

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NOTE: For additional information about the power meter, refer to Using the power meter on page 24.

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

Resolving a low battery level when external power is available

▲Connect one of the following devices:

●AC adapter

●Optional docking or expansion device

●Optional power adapter purchased as an accessory from HP

Resolving a low battery level when a charged battery is available

1.Turn off the computer or initiate Hibernation.

2.Replace the discharged battery with a charged battery.

3.Turn on the computer.

Resolving a low battery level when no power source is available

●Initiate Hibernation.

●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.Replace the discharged battery with a charged battery, or connect the AC adapter to the computer and to external power.

2.Exit Hibernation by pressing the power button.

Conserving battery power

●Select low power-use settings through Power Options in Windows Control Panel.

●Turn off wireless and LAN connections and exit modem applications when you are not using them.

●Disconnect unused external devices that are not plugged into an external power source.

●Stop, disable, or remove any external media cards that you are not using.

Using battery power 29

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Contents HP Notebook Product notice Safety warning notice Iv Safety warning notice Table of contents VGA Hdmi External cards and devices Cleaning your computer Cleaning products Viii Computer Setup Bios and System Diagnostics Page Finding more information about your new computer IntroductionWindows Creating a wireless connectionIdentifying wireless and network status icons Networking select models onlyWindows Vista Click Start All Programs HP HP Connection Manager Turning wireless devices on or offUsing HP Connection Manager select models only Using operating system controlsUsing a Wlan Connecting to an existing WlanSelect Start Connect to Setting up a new Wlan Protecting your WlanRoaming to another network Inserting a SIM Using HP Mobile Broadband select models onlyRemoving a SIM Using GPS select models onlyUsing Bluetooth wireless devices Bluetooth and Internet Connection Sharing ICSConnecting to a wired network Using a modem select models onlyConnecting a modem cable Page Selecting a location setting Connecting a country- or region-specific modem cable adapterWindows Select Start Device and Printers Adding new locations when travelingConnecting to a local area network LAN select models only Page Using the media activity controls MultimediaAudio Select Start Control Panel Hardware and Sound Sound Adjusting the volumeSelect Start All Programs Accessories Sound Recorder Checking audio functions on the computerSelect Start All Programs Accessories Sound Recorder Webcam select models only VGA VideoHdmi Configuring audio for HdmiIntel Wireless Display select models only Power management Shutting down the computerWindows 7-SelectStart Shut down Initiating and exiting Hibernation Setting power optionsUsing power-saving states Initiating and exiting SleepSelecting a different power plan Using the power meterUsing power plans Viewing the current power planCustomizing power plans Setting password protection on wakeupClick Require a password recommended Click Save changes Select Start All Programs HP HP Power Assistant Using Power Assistant select models onlyUsing battery power Finding additional battery informationManaging low battery levels Using Battery CheckDisplaying the remaining battery charge Maximizing battery discharge timeResolving a low battery level Conserving battery powerReplacing the battery Using external AC powerStoring a battery Disposing of a used batteryPage Testing an AC adapter Switching between graphics modes select models onlyUsing Media Card Reader cards select models only External cards and devicesInserting a digital card Removing a digital card Using PC Cards select models onlyConfiguring a PC Card Inserting a PC Card Using ExpressCards select models only Configuring an ExpressCardRemoving a PC Card Inserting an ExpressCard Removing an ExpressCard Using smart cards select models onlyUsing a USB device Inserting a smart cardRemoving a smart card Using 1394 devices select models only Connecting a USB deviceRemoving a USB device Using an eSATA device select models only Connecting a 1394 deviceRemoving a 1394 device Removing an eSATA device Connecting an eSATA deviceUsing a serial device select models only Using optional external devicesUsing optional external drives Using the docking connector select models only Using the expansion port select models onlyExternal cards and devices Handling drives DrivesImproving hard drive performance Using hard drivesUsing Disk Defragmenter Using Disk CleanupUsing HP 3D DriveGuard select models only Managing power with a parked hard driveIdentifying HP 3D DriveGuard status Inserting an optical disc Using optical drives select models onlyIdentifying the installed optical drive Using HP 3D DriveGuard softwareSlot load Removing an optical discWhen the disc tray opens normally Slot load Sharing optical drives Using RAID select models onlyProtecting the computer SecuritySetting passwords in Windows Using passwordsChanging a Bios administrator password Setting passwords in Computer SetupManaging a Bios administrator password Setting a new Bios administrator passwordManaging a Computer Setup DriveLock password Entering a Bios administrator passwordDeleting a Bios administrator password Setting a DriveLock password Entering a DriveLock password Changing a DriveLock passwordRemoving DriveLock protection Using Computer Setup Auto DriveLock Entering an Automatic DriveLock passwordRemoving Automatic DriveLock protection Page Using antivirus software Using firewall software Installing critical security updates Using HP ProtectTools Security Manager select models only Installing an optional security cable Locating the fingerprint reader Using the fingerprint reader select models onlyMaintenance Cleaning the display Cleaning your computerCleaning products Cleaning proceduresCleaning the TouchPad and keyboard Cleaning a tablet PC pen and pen holderUpdating programs and drivers Using SoftPaq Download Manager Navigating and selecting in Computer Setup Computer Setup Bios and System DiagnosticsUsing Computer Setup Starting Computer SetupRestoring factory settings in Computer Setup Select Start Help and Support Maintain Updating the BiosDetermining the Bios version Downloading a Bios updateUsing System Diagnostics About the boot device order MultiBootEnabling boot devices in Computer Setup Considering boot order changes Choosing MultiBoot preferences Setting a new boot order in Computer SetupDynamically choosing a boot device using the F9 prompt Entering MultiBoot Express preferences Setting a MultiBoot Express promptUsing Client Management Solutions Configuring and deploying a software imageManagement HP Client Manager for Altiris select models only Managing and updating softwarePage HP SSM System Software Manager HP CCM Client Configuration Manager select models onlyUsing Intel Active Management Technology select models only IAMT Configuration Enabling the iAMT solutionUsing the MEBx setup utility menus Intel ME ConfigurationChange Intel ME Password Traveling with the computer Page Troubleshooting resources Electrostatic Discharge Index Symbols/NumericsKeys SIM