HP WX557AV, LQ174AW manual Using external AC power, Storing a battery, Disposing of a used battery

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●Decrease screen brightness.

●Before you leave your work, initiate Sleep or Hibernation, or shut down the computer.

Storing a battery

CAUTION: To reduce the risk of damage to a battery, do not expose it to high temperatures for extended periods of time.

If a computer will be unused and unplugged from external power for more than 2 weeks, remove the battery and store it separately.

To prolong the charge of a stored battery, place it in a cool, dry place.

NOTE: A stored battery should be checked every 6 months. If the capacity is less than 50 percent, recharge the battery before returning it to storage.

Calibrate a battery before using it if it has been stored for one month or more.

Disposing of a used battery

WARNING! To reduce the risk of fire or burns, do not disassemble, crush, or puncture; do not short external contacts; do not dispose of in fire or water.

Refer to the Regulatory, Safety and Environmental Notices for proper battery disposal.

Replacing the battery

In Windows 7, Battery Check in Help and Support notifies you to replace the battery when an internal cell is not charging properly or when the battery storage capacity has reached a weak condition. If the battery is possibly covered by an HP warranty, instructions include a warranty ID. A message refers you to the HP Web site for more information about ordering a replacement battery.

Using external AC power

NOTE: For information on connecting to AC power, refer to the Setup Instructions poster provided in the computer box.

External AC power is supplied through an approved AC adapter or an optional docking or expansion device.

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.

Connect the computer to external AC power under any of the following conditions:

WARNING! Do not charge the computer battery while you are onboard aircraft.

●When charging or calibrating a battery

●When installing or modifying system software

●When writing information to a CD, a DVD, or a BD (select models only)

●When running Disk Defragmenter

●When performing a backup or recovery

30 Chapter 4 Power management

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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 Introduction Finding more information about your new computerCreating a wireless connection Identifying wireless and network status iconsNetworking select models only WindowsWindows Vista Turning wireless devices on or off Using HP Connection Manager select models onlyUsing operating system controls Click Start All Programs HP HP Connection ManagerConnecting to an existing Wlan Using a WlanSelect Start Connect to Protecting your Wlan Setting up a new WlanRoaming to another network Using HP Mobile Broadband select models only Inserting a SIMUsing GPS select models only Using Bluetooth wireless devicesBluetooth and Internet Connection Sharing ICS Removing a SIMUsing a modem select models only Connecting to a wired networkConnecting a modem cable Page Connecting a country- or region-specific modem cable adapter Selecting a location settingAdding new locations when traveling Windows Select Start Device and PrintersConnecting to a local area network LAN select models only Page Multimedia Using the media activity controlsAudio Adjusting the volume Select Start All Programs Accessories Sound RecorderChecking audio functions on the computer Select Start Control Panel Hardware and Sound SoundSelect Start All Programs Accessories Sound Recorder Webcam select models only Video VGAConfiguring audio for Hdmi HdmiIntel Wireless Display select models only Shutting down the computer Power managementWindows 7-SelectStart Shut down Setting power options Using power-saving statesInitiating and exiting Sleep Initiating and exiting HibernationUsing the power meter Using power plansViewing the current power plan Selecting a different power planSetting password protection on wakeup Customizing power plansClick Require a password recommended Click Save changes Using Power Assistant select models only Using battery powerFinding additional battery information Select Start All Programs HP HP Power AssistantUsing Battery Check Displaying the remaining battery chargeMaximizing battery discharge time Managing low battery levelsConserving battery power Resolving a low battery levelUsing external AC power Storing a batteryDisposing of a used battery Replacing the batteryPage Switching between graphics modes select models only Testing an AC adapterExternal cards and devices Using Media Card Reader cards select models onlyInserting a digital card Using PC Cards select models only Removing a digital cardConfiguring a PC Card Inserting a PC Card Configuring an ExpressCard Using ExpressCards select models onlyRemoving a PC Card Inserting an ExpressCard Using smart cards select models only Removing an ExpressCardInserting a smart card Using a USB deviceRemoving a smart card Connecting a USB device Using 1394 devices select models onlyRemoving a USB device Connecting a 1394 device Using an eSATA device select models onlyRemoving a 1394 device Connecting an eSATA device Removing an eSATA deviceUsing optional external devices Using a serial device select models onlyUsing optional external drives Using the expansion port select models only Using the docking connector select models onlyExternal cards and devices Drives Handling drivesUsing hard drives Using Disk DefragmenterUsing Disk Cleanup Improving hard drive performanceManaging power with a parked hard drive Using HP 3D DriveGuard select models onlyIdentifying HP 3D DriveGuard status Using optical drives select models only Identifying the installed optical driveUsing HP 3D DriveGuard software Inserting an optical discRemoving an optical disc Slot loadWhen the disc tray opens normally Slot load Using RAID select models only Sharing optical drivesSecurity Protecting the computerUsing passwords Setting passwords in WindowsSetting passwords in Computer Setup Managing a Bios administrator passwordSetting a new Bios administrator password Changing a Bios administrator passwordEntering a Bios administrator password Managing a Computer Setup DriveLock passwordDeleting a Bios administrator password Setting a DriveLock password Changing a DriveLock password Entering a DriveLock passwordRemoving DriveLock protection Entering an Automatic DriveLock password Using Computer Setup Auto DriveLockRemoving 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 Using the fingerprint reader select models only Locating the fingerprint readerMaintenance Cleaning your computer Cleaning productsCleaning procedures Cleaning the displayCleaning a tablet PC pen and pen holder Cleaning the TouchPad and keyboardUpdating programs and drivers Using SoftPaq Download Manager Computer Setup Bios and System Diagnostics Using Computer SetupStarting Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Updating the Bios Determining the Bios versionDownloading a Bios update Select Start Help and Support MaintainUsing System Diagnostics MultiBoot About the boot device orderEnabling boot devices in Computer Setup Considering boot order changes Setting a new boot order in Computer Setup Choosing MultiBoot preferencesDynamically choosing a boot device using the F9 prompt Setting a MultiBoot Express prompt Entering MultiBoot Express preferencesConfiguring and deploying a software image Using Client Management SolutionsManagement Managing and updating software HP Client Manager for Altiris select models onlyPage HP CCM Client Configuration Manager select models only HP SSM System Software ManagerUsing Intel Active Management Technology select models only Enabling the iAMT solution Using the MEBx setup utility menusIntel ME Configuration IAMT ConfigurationChange Intel ME Password Traveling with the computer Page Troubleshooting resources Electrostatic Discharge Symbols/Numerics IndexKeys SIM