HP B5A04UAR#ABA manual Running on external power

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Running on external power

For information about connecting to AC power, see the Setup Instructions provided in the computer box.

The computer does not use battery power when the computer is connected to external power with an approved AC adapter or an optional docking/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 power under any of the following conditions:

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

●When charging or calibrating a battery

●When installing or modifying system software

●When writing information to a disc

●When running Disk Defragmenter on computers with internal hard drives

●When performing a backup or recovery

When you connect the computer to external power:

●The battery begins to charge.

●The display brightness increases.

●The Power Meter icon in the notification area changes appearance. When you disconnect external power, the following events occur:

●The computer switches to battery power.

●The display brightness automatically decreases to save battery life.

●The Power Meter icon in the notification area changes appearance.

44 Chapter 6 Managing power

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Contents User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Enjoying entertainment features Locating your security software Using passwords Vii Using Setup Utility Bios and System Diagnostics Input power Operating environment Page Starting right Best practicesFun things to do Resource Contents More HP resourcesGetting to know your computer Finding your hardware and software informationRight side See Using HP 3D DriveGuard select models only Left side Computer speakers are disabled Display Communication and Chat CyberLink YouCamTop TouchPadLights Buttons and speakers Keys Fn keyBottom Labels Connecting to a network Using the wireless button Connecting to a wireless networkUsing the wireless controls Using HP Connection ManagerUsing a Wlan Using operating system controlsUsing an Internet service provider Setting up a Wlan Configuring a wireless routerProtecting your Wlan Using Bluetooth wireless devices select models only Connecting to a WlanConnecting to a wired network Connecting to a local area network LANEnjoying entertainment features Multimedia FeaturesEnjoying entertainment features Using the webcam Using audioUsing video Connecting a VGA monitor or projectorConnecting an Hdmi TV or monitor Configuring audio settings with Hdmi TV Managing your photo, audio, and video filesUsing the keyboard and pointing devices Using the keyboard Using ALT GR key combinationsUsing the action keys Using the hot keys Function Hot key DescriptionUsing the keypad Using the integrated numeric keypadUsing the TouchPad Turning the TouchPad off or onNavigating SelectingUsing TouchPad gestures Scrolling Pinching/ZoomingRotating Managing power Using Sleep or Hibernation Initiating and exiting SleepInitiating and exiting Hibernation Setting password protection on wakeup Using the power meter Selecting a power plan Running on battery power Removing a user-replaceable batteryFinding battery information Conserving battery power Identifying low battery levelsStoring a user-replaceable battery Disposing of a user-replaceable battery Replacing a user-replaceable batteryRunning on external power HP CoolSense Shutting down the computerUsing a USB device Connecting a USB deviceManaging and sharing information Connecting a powered USB device Removing a USB deviceInserting and removing a digital storage card Using optical drives Inserting an optical disc Removing an optical discSharing drives on the network Maintaining your computer Improving performanceHandling drives Replacing a hard drive Page Using HP 3D DriveGuard select models only Using Disk DefragmenterUsing Disk Cleanup Adding or replacing memory modules Page Page Page Updating programs and drivers Cleaning your computer Cleaning the display, sides, and coverCleaning the TouchPad and keyboard Traveling with or shipping your computer Securing your computer and information Locating your security softwareUsing passwords Setting Windows passwordsUsing Internet security software Setting Setup Utility Bios passwordsUsing firewall software Installing software updatesUsing antivirus software Installing Windows security updatesSecuring your wireless network Using an optional security cable lockBacking up your software applications and information Using Setup Utility Bios and System Diagnostics Starting Setup Utility BiosUpdating the Bios Determining the Bios version Downloading a Bios updateUsing System Diagnostics Creating recovery media to recover the original system Backing up, restoring, and recoveringCreating backups What you need to knowCreating system restore points Creating a system restore pointTips for a successful backup Backing up system and personal informationCreating a backup using Windows Backup and Restore Recovering the original system using HP Recovery Manager Restore and recoveryRestoring to a previous system restore point Restoring specific files using Windows Backup and RestoreRecovering using HP Recovery partition select models only Recovering using the recovery mediaChanging the computer boot order Specifications Input powerOperating environment Troubleshooting and support Troubleshooting Disc drive problemsWireless connection problems Cannot connect to a Wlan Cannot connect to a preferred networkCurrent network security codes are unavailable Cannot connect to the wireless router Wlan connection is very weakAudio problems Power management problemsNetwork status icon is not displayed Resolving a low battery level Troubleshooting an AC adapterContacting customer support Electrostatic Discharge Bios IndexWlan