HP V5215TU, V5224TU, V5221TU Managing low-battery conditions, Identifying low-battery conditions

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Managing low-battery conditions

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

This section explains how to identify low-battery and critical low-battery conditions.

Low-battery condition

When a battery pack that is the sole power source for the computer reaches a low-battery condition, the battery light blinks.

Critical low-battery condition

If a low-battery condition is not resolved, the computer enters a critical low-battery condition, and the battery light blinks rapidly.

In a critical low-battery condition:

●If hibernation is enabled and the computer is on or in standby, the computer initiates hibernation.

●If hibernation is disabled and the computer is on or in standby, the computer remains briefly in standby, and then shuts down and loses any unsaved information.

To verify that hibernation is enabled:

1.Select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate.

2.Be sure that the Enable hibernation support check box is selected.

ENWW	Battery packs 43

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Contents Page Page Table of contents Power Multimedia DrivesExternal Media Cards Wireless Select Models OnlyExternal Devices Memory ModulesSoftware Update and Recovery Setup UtilityModem and Local Area Network SecurityRoutine Care TroubleshootingElectrostatic Discharge 163Enww Enww Select Hardware tab Device Manager ComponentsComponent Description Top componentsKeys TouchPad Buttons and switches Lights Display components Front componentsComponentDescription Rear componentsRight-side components Enww Left-side components Bottom components Wireless antennae select models only Additional hardware components Labels Rated input power SpecificationsInput Power Rating Operating environmentFeature Support Expansion port input/output signalsEnww TouchPad TouchPad and KeyboardSetting TouchPad preferences Using the TouchPadUsing an external mouse Hotkeys KeyboardHotkey quick reference Hotkey proceduresDisplay and clear system information fn+esc Function Key CombinationOpen a Web browser fn+f3 Open the Help and Support Center fn+f1Open the Print Options window fn+f2 Initiate standby fn+f5 Switch the screen image fn+f4Decrease screen brightness fn+f7 Initiate QuickLock fn+f6Increase screen brightness fn+f8 Play, pause or resume an audio CD or a DVD fn+f9Keypads Using the embedded numeric keypadEnabling and disabling the embedded numeric keypad ComponentEnabling or disabling num lock mode as you work Using an external numeric keypadSwitching key functions on the embedded numeric keypad TouchPad and Keyboard Power control and light locations PowerPower Task Recommended power source Power sourcesConnecting the AC adapter Hibernation Standby and hibernationStandby Initiating standby, hibernation or shutdown When you leave your workWhen a reliable power supply is unavailable Enww Using emergency shutdown procedures Default power settingsTask Procedure Result Turning the computer or display on or offInitiating or resuming from standby Task ProcedureHibernate Initiating or restoring from hibernationDisplaying the Power Meter icon Power optionsAccessing Power Options Properties Setting a security prompt Setting or changing a power schemeProcessor performance controls Inserting or removing a battery pack Battery packsCharging a battery pack Interpreting charge indicators Monitoring the charge of the battery packObtaining accurate charge information Displaying charge information on the screenIdentifying low-battery conditions Managing low-battery conditionsLow-battery condition Critical low-battery conditionWhen external power is available Resolving low-battery conditionsWhen a charged battery pack is available When no power source is availableWhen to calibrate Calibrating a battery packHow to calibrate Charging the battery packDischarging the battery pack Recharging the battery pack Conserving battery powerConserving power as you work Selecting power conservation settings Storing a battery packDisposing of a used battery pack Drive care DrivesIDE drive light Hard drive Enww Tighten the hard drive cover screws DVD-ROM ±RW/R Optical drivesInserting an optical disc Removing an optical disc with power Removing an optical disc without power Avoiding standby or hibernation Identifying the installed optical drive Using the optical driveMultimedia Multimedia hardwareInserting an optical disc Removing an optical disc with power Removing an optical disc without power Using media activity hotkeys Using the audio features Using S/PDIF digital audio select models only Using the audio-in microphone jackUsing the audio-out headphone jack Adjusting the volume Using the external monitor port Using the video featuresUsing the S-Video-out jack HP Mobile Remote Control PC Card version Remote control select models onlyInserting the battery PC Card version Enww Storing the remote control in the PC Card slot Button quick reference PC Card version Media playing, press to pause the media Back Button Function in Microsoft WindowsHP Mobile Remote Control PC Card version component functions Inserting the battery ExpressCard version HP Mobile Remote Control ExpressCard versionEnww Storing the remote control in the ExpressCard slot Button quick reference ExpressCard version Press to stop the current media activity, such as Press to go back to the previous track or chapter Problem Possible solution Troubleshooting the remote controlMultimedia software Identifying preinstalled multimedia softwareInstalling multimedia software from a CD select models only Using multimedia software Protecting the CD or DVD write process Protecting playbackObserving the copyright warning Changing DVD region settingsMultimedia Media Reader cards select models only External Media CardsInserting a digital card Stopping or removing a digital card PC Cards select models only Configuring a PC CardStopping or removing a PC Card Inserting a PC CardEnww Selecting an ExpressCard Configuring an ExpressCardExpressCards Inserting an ExpressCard Enww Stopping or removing an ExpressCard External Devices Using a USB deviceConnecting a USB device Required USB software Stopping a USB deviceConnecting a 1394 device Using a 1394 device select models onlyStopping a 1394 device Required 1394 softwareUsing the expansion port Adding or replacing memory modules Memory ModulesEnww Enww Enww Effects of increasing memory Video memory settings select models only Identifying an 802.11 wireless device Wireless Select Models OnlyWireless features Wireless controls Wireless devices select models only Setting up a Wlan in your home Using wireless security features Connecting to a Wlan in your homeConnecting to a public Wlan Bluetooth wireless devices select models only Modem Modem and Local Area NetworkConnecting the modem cable Viewing the current country selection Connecting a country-specific modem cable adapterSelecting a location setting Select Start Control Panel Network and Internet Connections Adding new locations when travelingCheck the telephone line type Solving travel connection problemsClear the check box for Wait for dial tone before dialing Using preinstalled communication softwareLocal area networks Enww Security Security featuresTo protect against Use this security feature Guidelines for setting passwords PasswordsQuickLock Passwords set in WindowsPasswords Function Managing an administrator password Passwords set in the Setup UtilityAdministrator password Entering an administrator password Power-on passwordManaging a power-on password Entering a power-on passwordFirewall software Critical updatesAntivirus software Optional security cable Security Setup Utility access Setup UtilitySetup Utility language Setup Utility defaults Main menu Setup Utility menusSecurity menu Select To do thisDiagnostics menu System Configuration menuSetup Utility HP Software Update Software Update and RecoverySoftware updates Accessing computer information Software updates and the HP Web siteDownloading a Bios update Installing a Bios update Downloading and installing other software Safeguarding your information System recoveryUsing System Restore Creating a restore pointRestoring to a restore point Reinstalling applicationsReinstalling applications from the hard drive Reinstalling applications from discsRepairing the operating system Back up your system Reinstalling the operating systemReinstall the operating system Update reinstalled software Reinstalling device drivers and other softwareSoftware Update and Recovery Routine Care Hardware maintenanceBattery pack Display TouchPad and keyboardDrives Using Disk DefragmenterUsing Disk Cleanup Regular tune-ups Traveling and shipping Computer will not start up TroubleshootingQuick checklist Software is functioning abnormally Computer screen is blankAn external device is not working Computer is turned on, but is not respondingComputer is extremely warm Enww Customer Care Taking the computer to a service partnerPreparing to contact Customer Care Contacting Customer Care by e-mail or telephoneTroubleshooting Preventing electrostatic discharge Electrostatic DischargeHandling drives Handling internal componentsGrounding methods Index Symbols/NumericsEnww Wlan Rated input power specifications Wlan label Writable media XD-Picture Card XD Index

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