Using battery power, Connecting the AC adapter | HP D3L12AW#ABA

When you connect the computer to external AC power, the following events occur:

●The battery begins to charge.

●If the computer is turned on, the battery meter icon in the notification area changes appearance. When you disconnect external AC power, the following events occur:

●The computer switches to battery power.

●The display brightness is automatically decreased to save battery life. To increase display brightness, press the fn+f10 hotkey or reconnect the AC adapter.

Connecting the AC adapter

WARNING! To reduce the risk of electric shock or damage to the equipment:

Plug the power cord into an AC outlet that is easily accessible at all times.

Disconnect power from the computer by unplugging the power cord from the AC outlet (not by unplugging the power cord from the computer).

If provided with a 3-pin attachment plug on the power cord, plug the cord into a grounded (earthed) 3- pin outlet. Do not disable the power cord grounding pin, for example, by attaching a 2-pin adapter. The grounding pin is an important safety feature.

To connect the computer to external AC power, follow these steps:

1.Plug the AC adapter into the power connector (1) on the computer.

2.Plug the power cord into the AC adapter (2).

3.Plug the other end of the power cord into an AC outlet (3).

Using battery power

When a charged battery is in the computer and the computer is not plugged into external power, the computer runs on battery power. When the computer is plugged into external AC power, the computer runs on AC power.

If the computer contains a charged battery and is running on external AC power supplied through the AC adapter, the computer switches to battery power if the AC adapter is disconnected from the computer.

Using battery power 75

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HP D3L12AW#ABA, A7V-M manual Using battery power, Connecting the AC adapter

Contents

HP ProBook User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices and keyboard Power management Drives External media cards 165 Identifying hardware FeaturesTop components TouchPad Features Lights Features Buttons and fingerprint reader Control Panel Performance and Maintenance Control Panel Performance and Maintenance Power Options Features Fn key Keys Front components Right-side components Features Left-side components Component Description Rear components Bottom components Display components Wireless antennas select models only Component Description Additional hardware components Identifying the labelsPage Using wireless devices select models only Wireless, modem, and local area network Using 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 Select Start All Programs HP HP Connection Manager Setting up a Wlan Using a Wlan device select models onlyProtecting your Wlan Use wireless encryption Use a wireless transmitter with built-in securityWork behind a firewall Close your network Roaming to another network Connecting to a WlanSelect Start Connect To Inserting a SIM Using HP Mobile Broadband select models only Removing a SIM Page Bluetooth and Internet Connection Sharing ICS Using a Bluetooth wireless device Cannot create a Wlan connection Troubleshooting wireless connection problemsSelect Properties Hardware Device Manager Network Adapters Cannot connect to a preferred network Click the Wireless Networks tabCurrent network security codes are unavailable Wlan connection is very weak Cannot connect to the wireless router Connecting a modem cable Using the modem select models only Viewing the current location selection Selecting a location setting Adding new locations when traveling Check the telephone line type Solving travel connection problemsCheck for pulse or tone dialing Set the modem to ignore dial tones Clear the check box for Wait for dial tone before dialing Connecting to a local area network LAN Using the keyboard Using pointing devicesPointing devices and keyboard Function Hotkey Displaying system information Initiating Standby Switching the screen image Displaying Power Assistant Increasing screen brightness Decreasing screen brightness Using keypads Using HP QuickLookUsing the embedded numeric keypad Switching key functions on the embedded numeric keypad Using the integrated numeric keypadEnabling and disabling the embedded numeric keypad Using an optional external numeric keypad Cleaning the TouchPad and keyboard Adjusting the volume Multimedia featuresMultimedia Multimedia software Installing multimedia software from a disc Accessing your preinstalled multimedia software Audio Connecting external audio devicesChecking your audio functions Page Using the external monitor port Connecting an external monitor or projectorUsing the DisplayPort VideoPage Optical drive select models only Using optical discs CDs, DVDs, and BDsIdentifying the optical drive Selecting the right disc CDs, DVDs, and BDs Blu-ray Discs BDs Playing a CD, DVD, or BD Changing DVD region settings Configuring AutoPlayObserving the copyright warning Creating burning a CD, DVD, or BD Copying a CD, DVD, or BDSelect Start All Programs Roxio Creator Business Removing an optical disc CD, DVD, or BD Troubleshooting Computer does not detect the optical drive Disc does not play automatically Disc does not playSet Color quality to Medium 16 bit Click Start My Computer Movie stops, skips, or plays erratically Device driver must be reinstalledMovie is not visible on an external display Obtaining Microsoft device drivers Select Start All Programs HP HP Update Webcam select models only Adjusting webcam properties Capturing business card images Page Setting power options Power managementUsing power-saving states Initiating and exiting Standby Initiating and exiting Hibernation Using the Power MeterSelect Start Turn Off Computer Selecting a different power scheme Using power schemesViewing the current scheme Clear the Always show icon on the taskbar check box Customizing power schemes Setting password protection upon exiting Standby Using external AC power Using Power Assistant select models onlyStarting Power Assistant Select Start All Programs HP HP Power Assistant Connecting the AC adapter Using battery power Inserting or removing the battery Displaying the remaining battery charge Charging a battery Managing low battery levels Maximizing battery discharge timeIdentifying low battery levels Page Resolving a low battery level Calibrating a batteryFully charge the battery Discharge the battery Disable Hibernation and Standby Storing a battery Conserving battery powerFully recharge the battery Reenable Hibernation and Standby Replacing the battery Disposing of a used battery Shutting down the computer Testing an AC adapterSelect Start Turn Off Computer Turn Off Drives Identifying installed drivesHandling drives Page Using Disk Cleanup Using Disk DefragmenterImproving hard drive performance Using HP 3D DriveGuard software Using HP 3D DriveGuardIdentifying HP 3D DriveGuard status Page 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 Stopping and removing a USB device Using USB legacy support Connecting a 1394 device Using a 1394 deviceStopping and removing a 1394 device Page Using a serial device select models only Using optional external devices Using external drives Using a docking device External media cards Using Media Card Reader cardsInserting a digital card Stopping and removing a digital card Configuring an ExpressCard Using ExpressCards select models onlyInserting an ExpressCard Stopping and removing an ExpressCard External media cards Inserting a smart card Using Smart Cards select models onlyRemoving a smart card Memory modules Page Page Page Upgrading a memory module in the primary memory module slot Page Page Page Increasing the hard drive space for the Hibernation file Protecting the computer Security Setting passwords in Windows Using passwordsSetting passwords in Computer Setup Bios administrator password Managing a Bios administrator password Page Entering a Bios administrator password Using Computer Setup DriveLock Setting a DriveLock password Entering a DriveLock password Changing a DriveLock password Entering an Automatic DriveLock password Using Computer Setup Auto DriveLockRemoving DriveLock protection Removing 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 security updates Using HP ProtectTools Security Manager select models only Installing a security cable Updating software Software Updates Determining the Bios version Updating the Bios Downloading a Bios update Click Download Updating programs and drivers Backup and recovery Backing up your information Click Start All Programs Accessories System Tools Backup Recovering your information Performing a recoveryRecovering the operating system and programs Starting Computer Setup Computer SetupUsing Computer Setup Navigating and selecting in Computer Setup Restoring factory settings in Computer Setup Computer Setup menus Security menu File menu System Configuration menu Enable/disable CD-ROM boot disabled by default Enable/disable Wake on USB enabled by default MultiBay devices and ExpressCard devices on About the boot device order MultiBoot MultiBoot Enabling 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 Entering MultiBoot Express preferences Setting a MultiBoot Express prompt Configuring and deploying a software image Using Client Management SolutionsManagement and Printing HP Client Manager for Altiris select models only Managing and updating softwarePage HP CCM Client Configuration Manager select models only HP SSM System Software Manager Using the HP Universal Print Driver select models only Index Symbols/Numerics DVD-ROM Jacks USB