HP E4S13UA#ABA, E4S20UA#ABA Running on external AC power, Disposing of a user-replaceable battery

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Disposing of a user-replaceable battery

WARNING! To reduce the risk of fire or burns, do not disassemble, crush, or puncture; do not short external contacts; do not dispose of in fire or water.

See the Regulatory, Safety and Environmental Notices for proper battery disposal. To access this guide, from the Start screen, type support, select the HP Support Assistant app, select My

computer, and then select User guides.

Replacing a user-replaceable battery

Battery Check in HP Support Assistant notifies you to replace the battery when an internal cell is not charging properly or when the battery storage capacity has reached a weak condition. If the battery is possibly covered by an HP warranty, instructions include a warranty ID. A message refers you to the HP website for more information about ordering a replacement battery.

Running on external AC power

For information on connecting to AC power, refer to the Setup Instructions poster provided in the computer box.

The computer does not use battery power when the computer is connected to AC 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 AC power under any of the following conditions:

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

●When charging or calibrating a battery

●When installing or modifying system software

●When writing information to a disc (select models only)

●When running Disk Defragmenter on computers with internal hard drives

●When performing a backup or recovery

When you connect the computer to external AC power:

●The battery begins to charge.

●The display brightness increases.

●The power meter icon on the Windows desktop changes appearance. When you disconnect external AC power, the following events occur:

●The computer switches to battery power.

●The display brightness automatically decreases to save battery life.

●The power meter icon on the Windows desktop changes appearance.

48 Chapter 6 Managing power

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Contents User Guide Product notice Software termsSafety warning notice Iv Safety warning notice Table of contents Enjoying entertainment features Managing power Maintaining your computer Input power Operating environment Page Starting right Best practicesFun things to do Resource Contents More HP resourcesLocating hardware Getting to know your computerFinding your hardware and software information Locating softwareComponent Description Right sideSelect User guides Left side See Using HP 3D DriveGuard select models only Display Top TouchPadLights Initiating Sleep and Hibernation onButtons and speakers Options, or see Managing power on Keys Fn keyBottom Bottom Labels ComponentUsing the wireless controls Connecting to a networkConnecting to a wireless network Using the wireless buttonUsing an Internet service provider Using a WlanUsing operating system controls ModeStepsConfiguring a wireless router Setting up a WlanProtecting 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 FeaturesPorts, see Using a USB device on Using audio Using the webcam select models onlyConnecting speakers Using Beats Audio select models only Connecting headphonesConnecting a microphone Accessing Beats Audio Control PanelTo confirm or change the audio settings on your computer Checking the soundUsing video Connecting an Hdmi deviceConfiguring Hdmi audio settings Using Intel Wireless Display select models onlyManaging your audio and video files Using the TouchPad Using TouchPad gesturesTapping Scrolling Pinching/zoomingRotating select models only Finger click select models onlyEdge swipes Flicking select models onlyRight-edge swipe Top-edge swipe Left-edge swipeUsing touch screen gestures select models only One-finger slidePinching/stretching Rotating select models only Top-edge swipe and bottom-edge swipe Setting touch screen preferences select models only Using the keyboard and mouseUsing the action keys Using the keysIcon Key Description Using Microsoft Windows 8 shortcut keys Shortcut Key DescriptionFunction Hot key Description Using the integrated numeric keypadUsing the hot keys select models only Sound , and then select Beats Audio Control PanelInitiating Sleep and Hibernation Managing powerIntel Rapid Start Technology select models only Initiating and exiting Sleep Enabling and exiting user-initiated hibernationSetting password protection on wakeup Using the power meter and power settingsRunning on battery power Removing a user-replaceable batteryFinding battery information Conserving battery powerResolving a low battery level Identifying low battery levelsStoring a user-replaceable battery Disposing of a user-replaceable battery Running on external AC powerReplacing a user-replaceable battery Troubleshooting power problems HP CoolSense select models onlyShutting down turning off the computer Managing and sharing information Using a USB deviceType Description Connecting a powered USB device Connecting a USB deviceRemoving a USB device Inserting and removing a digital storage card Using optical drives Removing an optical disc Inserting an optical discTray-load When the disc tray opens normally Sharing data and drives and accessing software Select Open Network and Sharing Center Improving performance Maintaining your computerHandling drives Replacing the primary hard drive Page Replacing the secondary hard drive select models only Page Using HP 3D DriveGuard select models only Using Disk DefragmenterUsing Disk Cleanup Adding or replacing memory modulesPage Page Page Cleaning the TouchPad and keyboard Cleaning your computerCleaning the display, sides, and cover Updating programs and driversTraveling with or shipping your computer Computer risk Security feature Using passwordsSecuring your computer and information Setting Setup Utility Bios passwords Setting Windows passwordsPassword Function Using HP SimplePass select models only Using the fingerprint readerRegistering fingerprints Using firewall software Using Internet security softwareUsing antivirus software Using your registered fingerprint to log on to WindowsUsing an optional security cable lock Installing software updatesSecuring your wireless network Backing up your software applications and informationPage Updating the Bios Using Setup Utility Bios and System DiagnosticsStarting Setup Utility Bios Determining the Bios versionDownloading a Bios update Using System Diagnostics Backing up, restoring, and recovering Creating recovery media and backupsCreating HP Recovery media See Creating HP Recovery media onRestore and recovery Using Windows Refresh for quick and easy recovery Remove everything and reinstall WindowsRecovering using HP Recovery Manager What you need to knowUsing HP Recovery media to recover Changing the computer boot orderRemoving the HP Recovery partition Input power SpecificationsInput power Rating Operating environment Electrostatic Discharge Bios IndexJacks