HP B5R45UA, dv7-7135us manual Running on battery power, Removing a user-replaceable battery

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Running on 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 and the display brightness decreases to conserve battery life. The battery in the computer slowly discharges when the computer is off and unplugged from external power.

Computer battery life varies, depending on power management settings, programs running on the computer, display brightness, external devices connected to the computer, and other factors.

Removing a user-replaceable battery

Your computer includes a user-replaceable battery.

WARNING! To reduce potential safety issues, use only the user-replaceable battery provided with the computer, a replacement battery provided by HP, or a compatible battery purchased from HP.

CAUTION: Removing a battery that is the sole power source for the computer can cause loss of information. So before removing the battery, save your work and initiate Hibernation, or shut down the computer through Windows.

To remove the battery:

1.Turn the computer upside down on a flat surface.

2.Slide the battery release latch (1) to release the battery.

NOTE: The battery release latch automatically returns to its original position.

3.Pivot the battery (2) upward and remove it from the computer.

Finding battery information

Help and Support provides the following tools and information about the battery:

●Battery Check tool in Help and Support to test battery performance

●Information about calibration, power management, and proper care and storage to maximize battery life

●Information about battery types, specifications, life cycles, and capacity

To access battery information, select Start > Help and Support > Learn > Power Plans: Frequently Asked Questions.

44 Chapter 6 Managing power

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Contents User Guide Product notice Software termsSafety warning notice Iv Safety warning notice Table of contents Using Sleep or Hibernation Managing and sharing information Securing your computer and information Input power Operating environment Page Starting right Best practicesFun things to do Resource Contents More HP resourcesFront Getting to know your computerFinding your hardware and software information Component DescriptionUsing Sleep or Hibernation on Right sideGetting to know your computer Left side Rear Display Communication and Chat CyberLink YouCamTop TouchPadLights Sleep or Hibernation onOr see Managing power on Buttons, speakers, and fingerprint readerKeys By selecting Start Control Panel HardwareSound Beats Audio Control Panel Num lock key Bottom Labels ComponentConnecting to a network Connecting to a wireless networkUsing the wireless controls Using the wireless button Using HP Connection Manager select models onlyUsing operating system controls Using a Wlan Using an Internet service providerSetting up a Wlan Configuring a wireless routerProtecting your Wlan Using Bluetooth wireless devices select models only Connecting to a WlanConnecting to a local area network LAN Enjoying entertainment features Multimedia FeaturesUsing the webcam Using audioConnecting a microphone Connecting speakersConnecting headphones Using Beats AudioChecking the sound Using videoConnecting a VGA monitor or projector IconDefinitionConnecting an Hdmi TV or monitor Configuring audio settings with Hdmi TV Using Intel Wireless Display select models only Managing your audio and video filesUsing the keyboard and pointing devices Using the action keys Using the keyboardUsing ALT GR key combinations Icon Key DescriptionSelect Start Control Panel Hardware and Sound Beats Using the hot keysFunction Hot key Description Audio Control PanelUsing the keypad Using the integrated numeric keypadUsing the TouchPad Turning the TouchPad off or onNavigating SelectingUsing TouchPad gestures Scrolling Pinching/ZoomingRotating FlickingManaging power Using Sleep or Hibernation Initiating and exiting Sleep Setting password protection on wakeup Initiating and exiting HibernationUsing the power meter Selecting a power plan Running on battery power Removing a user-replaceable batteryFinding battery information Storing a user-replaceable battery Conserving battery powerIdentifying low battery levels Disposing of a user-replaceable batteryRunning on external power Replacing a user-replaceable batteryUsing HP CoolSense select models only Shutting down the computer Select Start Shut downManaging and sharing information Using a USB deviceConnecting a USB device Type DescriptionConnecting a powered USB device Removing a USB deviceInserting and removing digital storage cards 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 Using Disk DefragmenterUsing Disk Cleanup Adding or replacing memory modules 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 Computer risk Security feature Securing your computer and informationLocating your security software Using passwords Setting Windows passwordsPassword Function Using the fingerprint reader Setting Setup Utility Bios passwordsUsing your registered fingerprint to log on to Windows Using Internet security softwareUsing HP SimplePass Registering fingerprintsUsing 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 Updating the Bios Using Setup Utility Bios and System DiagnosticsStarting Setup Utility Bios Determining the Bios versionDownloading a Bios update Select Start Help and Support MaintainUsing 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 powerInput power Rating Operating 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 IndexHdmi