HP Understanding Low Battery Notification and Charging Optimization

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The battery charges whether the computer is off or in use, but it charges faster when the computer is off.

Charging may take longer if a battery is new, has been unused for 2 weeks or more, or is much warmer or cooler than room temperature.

To prolong battery life and optimize the accuracy of battery charge displays, follow these recommendations:

●If you are charging a new battery, charge it fully before turning on the computer.

●Charge the battery until the battery light turns off.

NOTE: If the computer is on while the battery is charging, the battery meter in the notification area may show 100 percent charge before the battery is fully charged.

●Allow the battery to discharge below 5 percent of a full charge through normal use before charging it.

●If the battery has been unused for one month or more, calibrate the battery instead of simply charging it.

The battery light displays charge status:

●Amber: The battery is charging.

●Turquoise: A battery is close to full charge capacity.

●Blinking amber: A battery that is the only available power source has reached a low battery level. When the battery reaches a critical battery level, the battery light begins blinking rapidly.

●Off: If the computer is plugged into an external power source, the light turns off when all batteries in the computer are fully charged. If the computer is not plugged into an external power source, the light stays off until the battery reaches a low battery level.

Maximizing battery discharge time

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

Tips for maximizing battery discharge time:

●Lower the brightness on the display.

●Check the Power saver setting in Power Options.

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

●Store the battery in a cool, dry location.

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 (Start > System and Security > Power Options). Preferences set using Power Options do not affect lights.

Using battery power 67

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Contents HP EliteBook Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices and keyboard Adjusting the volume Power management Drives Security 151 Xii Pointing devices FeaturesIdentifying hardware Top componentsComponent Description LightsRapidly Panel System and Security Power Options Buttons, switches, and fingerprint readerKeys Fn key Front componentsRight-side components Rear componentsLeft-side components Bottom components Display components Wireless antennas select models only Additional hardware components Identifying the labelsPage Using wireless devices select models only Wireless, modem, and local area networkUsing the wireless controls Identifying wireless and network iconsUsing the wireless button Using HP Connection Manager select models only Using Wireless Assistant software select models onlyUsing operating system controls Setting up a Wlan Using a Wlan device select models onlyProtecting your Wlan Use a wireless transmitter with built-in security Connecting to a WlanRoaming to another network Inserting a SIM select models only Using HP Mobile Broadband select models onlyRemoving a SIM select models only Page Bluetooth and Internet Connection Sharing ICS Using a Bluetooth wireless device select models onlyCannot create a Wlan connection Troubleshooting wireless connection problemsNetwork icon is not displayed Cannot connect to a preferred networkCurrent network security codes are unavailable Wlan connection is very weak Cannot connect to the wireless routerConnecting a modem cable purchased separately Using the modem select models onlyAdding new locations when traveling Selecting a location settingViewing the current location selection Select Start Devices and Printers Solving travel connection problemsClick Properties Connecting to a local area network LAN Using the keyboard Using pointing devicesPointing devices and keyboard Initiating Sleep Displaying system informationIncreasing screen brightness Switching the screen imageViewing battery charge information Decreasing screen brightnessUsing keypads Using HP QuickLookEnabling and disabling the embedded numeric keypad Using the embedded numeric keypadUsing an optional external numeric keypad Switching key functions on the embedded numeric keypadCleaning the TouchPad, keyboard, and vents Adjusting the volume Multimedia featuresMultimedia Click Customize notification icons Multimedia softwareInstalling multimedia software from a disc Accessing your preinstalled multimedia softwareAudio Connecting external audio devicesChecking your audio functions Page Video Connecting an external monitor or projectorUsing the external monitor port Using the DisplayPortPage Optical drive select models only Using optical discs CDs, DVDs, and BDsIdentifying the optical drive DVD±R discs Selecting the right disc CDs, DVDs, and BDsCD-R discs CD-RW discsBlu-ray Discs BDs Playing a CD, DVD, or BDDVD±RW discs LightScribe DVD+R discsChanging DVD region settings Configuring AutoPlayCopying a CD, DVD, or BD Observing the copyright warningRemoving an optical disc CD, DVD, or BD Creating burning a CD, DVD, or BDTroubleshooting Computer does not detect the optical drive Disc does not play automatically Disc does not playMovie is not visible on an external display Movie stops, skips, or plays erraticallyObtaining the latest HP device drivers Device driver must be reinstalledWebcam select models only Adjusting webcam propertiesCapturing business card images Page Initiating and exiting Sleep Power managementSetting power options Using power-saving statesUsing power plans Using the battery meterInitiating and exiting Hibernation Customizing power plans Setting password protection on wakeupViewing the current power plan Selecting a different power planUsing external AC power Using Power Assistant select models onlyStarting Power Assistant Connecting the AC adapter Using battery powerInserting or removing the battery Finding battery information in Help and SupportUsing Battery Check Displaying the remaining battery chargeCharging a battery Managing low battery levels Maximizing battery discharge timeResolving a low battery level Identifying low battery levelsFully charge the battery Calibrating a batteryDisable Hibernation and Sleep Fully recharge the battery Discharge the batteryReenable Hibernation and Sleep Replacing the battery Conserving battery powerStoring a battery Disposing of a used batteryPower management Shutting down the computer Testing an AC adapterPage Drives Identifying installed drivesHandling drives Page Using Disk Cleanup Using Disk DefragmenterImproving hard drive performance Identifying HP 3D DriveGuard status Using HP 3D DriveGuardUsing HP 3D DriveGuard software Replacing a hard drive in the hard drive bay Page Page Removing the protective insert Replacing a drive in the upgrade bayReplacing a hard drive Page Page Replacing an optical drive Page Page Connecting a USB device Using a USB deviceExternal devices Removing a USB device Using USB legacy supportConnecting a 1394 device Using a 1394 deviceRemoving a 1394 device Page Using optional external devices Using external drivesUsing a docking device External media cards Using SD Card Reader cardsInserting a digital card Inserting an ExpressCard Using ExpressCards select models onlyConfiguring an ExpressCard Removing a digital cardRemoving an ExpressCard Using smart cards select models only Removing a smart card Inserting a smart cardMemory modules Page Page Page Upgrading a memory module in the primary memory module slot Page Page Page Protecting the computer SecuritySetting passwords in Windows Using passwordsSetting passwords in Computer Setup Managing a Bios administrator password Bios administrator passwordEntering a Bios administrator password Using Computer Setup DriveLockEntering a DriveLock password Setting a DriveLock passwordRemoving DriveLock protection Changing a DriveLock passwordEntering an Automatic DriveLock password Using Computer Setup Auto DriveLockRemoving Automatic DriveLock protection Viewing Computer Setup System Information Using Computer Setup security featuresSecuring system devices Using Computer Setup System IDs Using antivirus software Using firewall software Installing critical updates Using HP ProtectTools Security Manager select models only Installing a security cable Software updates Updating software Determining the Bios version Updating the BiosDownloading a Bios update Page Click Download Updating programs and driversUsing SoftPaq Download Manager Backup and recovery Backing up your information Select Start All Programs Maintenance Backup and RestoreBackup and recovery Using the Windows recovery tools Performing a recoveryUsing a Windows 7 operating system DVD purchased separately Using f11 recovery toolsSelect Repair your computer Navigating and selecting in Computer Setup Computer SetupStarting Computer Setup Using Computer SetupRestoring factory settings in Computer Setup Computer Setup menusSecurity menu File menuUser Management requires a Bios administrator password System Configuration menuUSB port to the computer Enable/disable Preboot Authentication on HP QuickLook Ansi MultiBoot About the boot device order Enabling boot devices in Computer Setup Considering boot order changes Setting a new boot order in Computer Setup Choosing MultiBoot preferencesSetting a MultiBoot Express prompt Dynamically choosing a boot deviceEntering MultiBoot Express preferences Management and printing HP Client Automation select models only Using Client Management SolutionsConfiguring and deploying a software image Managing and updating softwareHP SSM System Software Manager Using the HP Universal Print Driver Index Symbols/NumericsDVD-ROM Jacks Ssid Wireless Assistant

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