HP CQ56-115DX manual Using external AC power, Disposing of a used battery, Replacing the battery

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Calibrate a battery before using it if it has been stored for one month or more.

Disposing of a used 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.

Refer to the Regulatory, Safety, and Environmental Notices for battery disposal information.

Replacing the battery

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.

You can find details about the battery by clicking the Battery icon in the notification area on the far right of the taskbar.

NOTE: To ensure that you always have battery power when you need it, HP recommends purchasing a new battery when the storage capacity indicator turns green-yellow.

Using external AC power

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

External AC power is supplied through an approved AC adapter or an optional docking or 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 battery while you are onboard aircraft.

When you are charging or calibrating a battery

When you are installing or modifying system software

When writing information to a CD

When you connect the computer to external AC power, the following events occur:

The battery begins to charge.

If the computer is turned on, the battery meter icon in the notification area changes appearance. When you disconnect external AC power, the following events occur:

The computer switches to battery power.

The display brightness is automatically decreased to save battery life.

36 Chapter 6 Power management

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Contents HP Notebook User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Multimedia Memory modules Security Appendix B Routine care Welcome Finding informationWelcome Getting to know your computer Lights TopTouchPad Top Button and speakers Keys Right side Left side Display Wireless antennas Bottom Additional hardware Networking Using an Internet service provider ISP Identifying wireless and network status icons Creating a wireless connectionUsing a Wlan Turning wireless devices on and offConnecting to an existing Wlan Setting up a new WlanProtecting your Wlan Roaming to another networkUsing Bluetooth wireless devices select models only Connecting to a local area network LANPage Using the keyboard Pointing devices and keyboardFunction Action key Using the TouchPad Setting pointing device preferencesUsing the media activity controls MultimediaAudio Checking your audio functions Adjusting the volumeWebcam select models only Video VGAPower management Shutting down the computerSetting power options Using power-saving statesUsing power management Using battery powerUsing the Power icon Displaying the remaining battery charge Inserting or removing the battery Charging a battery Maximizing battery life Managing low battery levelsConserving battery power Storing a batteryReplacing the battery Using external AC powerDisposing of a used battery Testing an AC adapter Drives Handling drivesReplacing or upgrading the hard drive Removing the hard driveInstalling the hard drive Page Using optical drives select models only Identifying the installed optical drivePlaying a CD Removing a CDPage External devices Using a USB deviceConnecting a USB device Using a USB device Removing a USB device Using optional external devicesUsing optional external drives Memory modules Page Page Page Protecting the computer Using passwordsSecurity Setting passwords in the operating system Operating system passwords FunctionBackup and Recovery Performing a system recovery Backing up your information Setup Utility Bios Starting Setup UtilityUsing Setup Utility Changing the language of Setup UtilityDisplaying system information Restoring factory default settings in Setup UtilityExiting Setup Utility Troubleshooting and support TroubleshootingComputer is unable to start up Computer screen is blankSoftware is functioning abnormally Computer is on but not respondingComputer is unusually warm An external device is not workingWireless network connection is not working Optical disc tray does not open for removal of a CDMovie is not visible on an external display Computer does not detect the optical driveDisc does not play Contacting customer support Labels ComponentRoutine care Cleaning the display Cleaning the TouchPad and keyboard Operating environment SpecificationsInput power Appendix C Specifications Electrostatic discharge Index LAN USBWlan
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