HP dv7-7135us, B5R45UA manual Conserving battery power, Identifying low battery levels

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Conserving battery power

Use the following tips for conserving battery power and maximizing battery life:

●Lower the brightness on the display.

●Select the Power saver setting in Power Options.

●Remove the battery from the computer when it is not being used or charged.

●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 computer, initiate Sleep or Hibernation, 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 power meter icon in the notification area displays a low or critical battery notification.

NOTE: For additional information about the power meter, see Using the power meter on page 42.

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

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

●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.

Storing a user-replaceable battery

CAUTION: To reduce the risk of damage to a battery, do not expose it to high temperatures for extended periods of time.

If your computer will be unused and unplugged from external power for more than 2 weeks, remove the battery and store it separately in a cool, dry place to prolong the battery charge.

A stored battery should be checked every 6 months. If the capacity is less than 50 percent, recharge the battery before returning it to storage.

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, select Start > Help and Support > User Guides.

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Contents User Guide Software terms Product noticeSafety 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 Best practices Starting rightFun things to do More HP resources Resource ContentsComponent Description Getting to know your computerFinding your hardware and software information FrontRight side Using Sleep or Hibernation onGetting to know your computer Left side Rear Communication and Chat CyberLink YouCam DisplayTouchPad TopSleep or Hibernation on LightsButtons, speakers, and fingerprint reader Or see Managing power onBy selecting Start Control Panel Hardware KeysSound Beats Audio Control Panel Num lock key Bottom Component LabelsConnecting to a wireless network Connecting to a networkUsing the wireless controls Using HP Connection Manager select models only Using the wireless buttonUsing operating system controls Using an Internet service provider Using a WlanConfiguring a wireless router Setting up a WlanProtecting your Wlan Connecting to a Wlan Using Bluetooth wireless devices select models onlyConnecting to a local area network LAN Multimedia Features Enjoying entertainment featuresUsing audio Using the webcamUsing Beats Audio Connecting speakersConnecting headphones Connecting a microphoneIconDefinition Using videoConnecting a VGA monitor or projector Checking the soundConnecting an Hdmi TV or monitor Configuring audio settings with Hdmi TV Managing your audio and video files Using Intel Wireless Display select models onlyUsing the keyboard and pointing devices Icon Key Description Using the keyboardUsing ALT GR key combinations Using the action keysAudio Control Panel Using the hot keysFunction Hot key Description Select Start Control Panel Hardware and Sound BeatsUsing the integrated numeric keypad Using the keypadTurning the TouchPad off or on Using the TouchPadSelecting NavigatingUsing TouchPad gestures Pinching/Zooming ScrollingFlicking RotatingManaging power Initiating and exiting Sleep Using Sleep or HibernationInitiating and exiting Hibernation Setting password protection on wakeupUsing the power meter Selecting a power plan Removing a user-replaceable battery Running on battery powerFinding battery information Disposing of a user-replaceable battery Conserving battery powerIdentifying low battery levels Storing a user-replaceable batteryReplacing a user-replaceable battery Running on external powerUsing HP CoolSense select models only Select Start Shut down Shutting down the computerType Description Using a USB deviceConnecting a USB device Managing and sharing informationRemoving a USB device Connecting a powered USB deviceInserting and removing digital storage cards Using optical drives Removing an optical disc Inserting an optical discSharing drives on the network Improving performance Maintaining your computerHandling drives Replacing a hard drive Page Using Disk Defragmenter Using HP 3D DriveGuardUsing Disk Cleanup Adding or replacing memory modules Page Page Updating programs and drivers Cleaning the display, sides, and cover Cleaning your computerCleaning the TouchPad and keyboard Traveling with or shipping your computer Securing your computer and information Computer risk Security featureLocating your security software Setting Windows passwords Using passwordsPassword Function Setting Setup Utility Bios passwords Using the fingerprint readerRegistering fingerprints Using Internet security softwareUsing HP SimplePass Using your registered fingerprint to log on to WindowsInstalling Windows security updates Installing software updatesUsing antivirus software Using firewall softwareUsing an optional security cable lock Securing your wireless networkBacking up your software applications and information Determining the Bios version Using Setup Utility Bios and System DiagnosticsStarting Setup Utility Bios Updating the BiosSelect Start Help and Support Maintain Downloading a Bios updateUsing System Diagnostics What you need to know Backing up, restoring, and recoveringCreating backups Creating recovery media to recover the original systemCreating a system restore point Creating system restore pointsBacking up system and personal information Tips for a successful backupCreating a backup using Windows Backup and Restore Restoring specific files using Windows Backup and Restore Restore and recoveryRestoring to a previous system restore point Recovering the original system using HP Recovery ManagerRecovering using the recovery media Recovering using HP Recovery partition select models onlyChanging the computer boot order Input power SpecificationsInput power Rating Operating environment Troubleshooting and support Disc drive problems TroubleshootingWireless connection problems Cannot connect to a preferred network Cannot connect to a WlanCurrent network security codes are unavailable Wlan connection is very weak Cannot connect to the wireless routerPower management problems Audio problemsNetwork status icon is not displayed Troubleshooting an AC adapter Resolving a low battery levelContacting customer support Electrostatic Discharge Index BiosHdmi