HP LJ527UT, WX557AV, LQ174AW, LQ164AW Using Battery Check, Displaying the remaining battery charge

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Using Battery Check

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

To run Battery Check:

1.Connect the AC adapter to the computer.

NOTE: The computer must be connected to external power for Battery Check to work properly.

2.Select Start > Help and Support > Troubleshoot > Power, Thermal and Mechanical.

3.Click the Power tab, and then click Battery Check.

Battery Check examines the battery and its cells to see if they are functioning properly, and then reports the results of the examination.

Displaying the remaining battery charge

▲Move the pointer over the power meter icon in the notification area, at the far right of the taskbar.

Maximizing battery discharge time

Battery discharge time varies depending on the features you use while on battery power. Maximum discharge time gradually decreases as the battery storage capacity naturally degrades.

Tips for maximizing battery discharge time:

●Lower the brightness on the display.

●Remove the battery from the computer when it is not being used or charged.

●Store the battery in a cool, dry location.

●Select the Power saver setting in Power Options.

Managing low battery levels

The information in this section describes the alerts and system responses set at the factory. Some low-battery 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 levels

When a battery that is the sole power source for the computer reaches a low or critical battery level, the following behavior occurs:

●The battery light (select models only) indicates a low or critical battery level.

NOTE: For additional information about the battery light, refer to the Getting Started guide.

– or –

●The power meter icon in the notification area shows a low or critical battery notification.

28 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 computerNetworking select models only Creating a wireless connectionIdentifying wireless and network status icons WindowsWindows Vista Using operating system controls Turning wireless devices on or offUsing HP Connection Manager select models only Click Start All Programs HP HP Connection ManagerSelect Start Connect to Using a WlanConnecting to an existing Wlan Roaming to another network Setting up a new WlanProtecting your Wlan Using HP Mobile Broadband select models only Inserting a SIMBluetooth and Internet Connection Sharing ICS Using GPS select models onlyUsing Bluetooth wireless devices Removing a SIMConnecting a modem cable Connecting to a wired networkUsing a modem select models only 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 Audio Using the media activity controlsMultimedia Checking audio functions on the computer Adjusting the volumeSelect Start All Programs Accessories Sound Recorder 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 Windows 7-SelectStart Shut down Power managementShutting down the computer Initiating and exiting Sleep Setting power optionsUsing power-saving states Initiating and exiting HibernationViewing the current power plan Using the power meterUsing power plans Selecting a different power planSetting password protection on wakeup Customizing power plansClick Require a password recommended Click Save changes Finding additional battery information Using Power Assistant select models onlyUsing battery power Select Start All Programs HP HP Power AssistantMaximizing battery discharge time Using Battery CheckDisplaying the remaining battery charge Managing low battery levelsConserving battery power Resolving a low battery levelDisposing of a used battery Using external AC powerStoring a battery Replacing the batteryPage Switching between graphics modes select models only Testing an AC adapterInserting a digital card Using Media Card Reader cards select models onlyExternal cards and devices Using PC Cards select models only Removing a digital cardConfiguring a PC Card Inserting a PC Card Removing a PC Card Using ExpressCards select models onlyConfiguring an ExpressCard Inserting an ExpressCard Using smart cards select models only Removing an ExpressCardRemoving a smart card Using a USB deviceInserting a smart card Removing a USB device Using 1394 devices select models onlyConnecting a USB device Removing a 1394 device Using an eSATA device select models onlyConnecting a 1394 device Connecting an eSATA device Removing an eSATA deviceUsing optional external drives Using a serial device select models onlyUsing optional external devices Using the expansion port select models only Using the docking connector select models onlyExternal cards and devices Drives Handling drivesUsing Disk Cleanup Using hard drivesUsing Disk Defragmenter Improving hard drive performanceIdentifying HP 3D DriveGuard status Using HP 3D DriveGuard select models onlyManaging power with a parked hard drive Using HP 3D DriveGuard software Using optical drives select models onlyIdentifying the installed optical drive 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 a new Bios administrator password Setting passwords in Computer SetupManaging a Bios administrator password Changing a Bios administrator passwordDeleting a Bios administrator password Managing a Computer Setup DriveLock passwordEntering a Bios administrator password Setting a DriveLock password Removing DriveLock protection Entering a DriveLock passwordChanging a DriveLock password Removing Automatic DriveLock protection Using Computer Setup Auto DriveLockEntering an Automatic DriveLock password 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 procedures Cleaning your computerCleaning products Cleaning the displayUpdating programs and drivers Cleaning the TouchPad and keyboardCleaning a tablet PC pen and pen holder Using SoftPaq Download Manager Starting Computer Setup Computer Setup Bios and System DiagnosticsUsing Computer Setup Navigating and selecting in Computer SetupRestoring factory settings in Computer Setup Downloading a Bios update Updating the BiosDetermining the Bios version Select Start Help and Support MaintainUsing System Diagnostics MultiBoot About the boot device orderEnabling boot devices in Computer Setup Considering boot order changes Dynamically choosing a boot device using the F9 prompt Choosing MultiBoot preferencesSetting a new boot order in Computer Setup Setting a MultiBoot Express prompt Entering MultiBoot Express preferencesManagement Using Client Management SolutionsConfiguring and deploying a software image 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 Intel ME Configuration Enabling the iAMT solutionUsing the MEBx setup utility menus IAMT ConfigurationChange Intel ME Password Traveling with the computer Page Troubleshooting resources Electrostatic Discharge Symbols/Numerics IndexKeys SIM