HP E2S18UAABA manual Conserving battery power, Identifying low battery levels

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Conserving battery power

Tips for conserving battery power and maximizing battery life:

●Lower the brightness on the display.

●Select the Power saver setting in Power Options.

●Remove a user-replaceable battery from the computer if it will not be used or charged for more than 2 weeks.

●Turn off wireless devices when you are not using them.

●Disconnect unused external devices that are not plugged into an external power source, such as an external hard drive connected to a USB port.

●Stop, disable, or remove any external media cards that you are not using.

●Before you leave your work, initiate Sleep or shut down the computer.

Identifying low battery levels

When a battery that is the sole power source for the computer reaches a low or critical battery level, the following behavior occurs:

●The battery light (select models only) indicates a low or critical battery level.

– or –

●The power meter icon on the Windows desktop shows a low or critical battery notification.

NOTE: For additional information about the power meter, see Using the power meter and power settings on page 40.

The computer takes the following actions for a critical battery level:

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

●If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates Hibernation.

Resolving a low battery level

Resolving a low battery level when external power is available

●Connect an AC adapter.

●Connect an optional docking or expansion device.

●Connect an optional power adapter purchased as an accessory from HP.

Resolving a low battery level when no power source is available

Save your work and shut down the computer.

42 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 Using the hot keys Securing your computer and information Input power Operating environment Page Best practices Starting rightFun things to do Resource Contents More HP resourcesMore HP resources Getting to know your computer Finding your hardware and software informationLocating hardware Locating softwareComponent Description Right sideSelect User guides See Using HP 3D DriveGuard select models only Left sideDisplay Top TouchPadLights Buttons and speakers Keys Fn keyBottom SupportLabels ComponentModel number select models only Revision number Connecting to a network Connecting to a wireless networkUsing the wireless controls Using the wireless buttonSharing data and drives and accessing software Using a WlanSetting up a Wlan Using an Internet service providerConfiguring a wireless router Connecting to a Wlan Protecting your WlanUsing Bluetooth wireless devices select models only Connecting to a wired networkConnecting to a local area network LAN Enjoying entertainment features Multimedia featuresUsing audio Using the webcamConnecting speakers Using video Connecting headphonesConnecting a microphone Checking the soundConnecting a VGA monitor or projector Connecting an Hdmi device Configuring Hdmi audio settingsManaging your audio and video files select models only Using the TouchPad Using TouchPad gesturesTapping ScrollingPinching/zooming Rotating select models onlyFinger click select models only Flicking select models onlyRight-edge swipe Edge swipesTop-edge swipe Left-edge swipe Using touch screen gestures select models only One-finger slideTapping Pinching/stretching Edge swipes Using the keys Using the keyboard and mouseTop-edge swipe and bottom-edge swipe Using the action keys Icon Key DescriptionUsing Microsoft Windows 8 shortcut keys Using the hot keysShortcut Key Description Function Hot key DescriptionInitiating Sleep and Hibernation Managing powerManually initiating and exiting Sleep Running on battery power Using the power meter and power settingsSetting password protection on wakeup Removing a user-replaceable battery Finding battery informationIdentifying low battery levels Conserving battery powerResolving a low battery level Running on external AC power Storing a user-replaceable batteryDisposing of a user-replaceable battery Replacing a user-replaceable batteryTroubleshooting power problems HP CoolSense select models onlyShutting down turning off the computer Using a USB device Connecting a USB deviceManaging and sharing information Type DescriptionInserting and removing a memory card Removing a USB devicePage Maintaining your computer Improving performanceHandling drives Replacing a hard drivePage Page Using HP 3D DriveGuard select models only Identifying HP 3D DriveGuard statusUsing Disk Cleanup Using Disk DefragmenterAdding or replacing memory modules Page Page Cleaning your computer Updating programs and driversCleaning procedures Cleaning the display All-in-Ones or NotebooksCleaning the sides or cover Cleaning the TouchPad, keyboard, or mouseTraveling with or shipping your computer Computer risk Security feature Using passwordsSecuring your computer and information Using Internet security software Setting Windows passwordsSetting Setup Utility Bios passwords Password FunctionInstalling software updates Using antivirus softwareUsing firewall software Installing critical security updatesUsing an optional security cable lock Securing your wireless networkBacking up your software applications and information Updating the Bios Starting Setup Utility BiosDetermining the Bios version Using HP PC Hardware Diagnostics Uefi Downloading a Bios updateDownloading HP PC Hardware Diagnostics Uefi to a USB device Backing up, restoring, and recovering Creating recovery media and backupsCreating HP Recovery media Restore and recovery Using Windows Refresh for quick and easy recovery Remove everything and reinstall WindowsUsing the HP Recovery partition select models only Recovering using HP Recovery ManagerWhat you need to know Using HP Recovery media to recover Changing the computer boot orderRemoving the HP Recovery partition Input power SpecificationsOperating environment Electrostatic Discharge Bios IndexWlan