HP Presario CQ40-600 Power Management - Windows 7

HP Presario CQ40-600 - Notebook PC Manual

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  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 1
    Power Management User Guide
  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 2
    © Copyright 2009 Hewlett-Packard Development Company, L.P. Windows is a U.S. registered trademark of Microsoft Corporation. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements
  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 3
    Product notice This user guide describes features that are common to most models. Some features may not be available on your computer. iii
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    iv Product notice
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    5 2 Using external AC power Connecting the AC adapter ...7 3 Using battery power Finding battery information in Help and Support 9 Using Battery Check ...10 Displaying the remaining battery charge 11 Inserting or removing the battery ...12 Charging a battery ...13 Maximizing battery discharge time
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    4 Shutting down the computer Index ...25 vi
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    battery power and 30 minutes of inactivity when running on external power. Power settings and timeouts can be changed using Power Options in Windows ways: ● Briefly press the power button. ● If the display is closed, open the display. ● Press a key on the keyboard or button on the remote control
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    Start, click the arrow next to the Shut down button, and then click Hibernate. To exit Hibernation: ▲ Briefly press the power button. The power lights turn on and your work returns to the screen where you stopped working. NOTE: If you have set a password to be required on wakeup, you must enter your
  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 9
    meter icons indicate whether the computer is running on battery or external power. The icon also displays a message if the battery has reached a low battery level, critical battery level, or reserve battery level. To hide or display the battery meter icon: 1. Right-click the Show hidden icons icon
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    of system settings that manages how the computer uses power. Power plans can help you conserve power or maximize performance. You can change power plan settings or create your own power plan. Viewing the current power plan ▲ Click the battery meter icon in the notification area, at the far
  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 11
    Select Start > Control Panel > System and Security > Power Options. 2. In the left pane, click Require a NOTE: If you need to create a user account password or change your current user account password, click Create or change your user account password, and then follow the on-screen instructions
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    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. To increase display brightness, press the fn+f8 hotkey or reconnect the AC adapter. 6 Chapter 2 Using external AC power
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    grounding pin, for example, by attaching a 2-pin adapter. The grounding pin is an important safety feature. To connect the computer to external AC power: 1. Plug the AC adapter into the power connector (1) on the computer. 2. Plug the power cord into the AC adapter (2). 3. Plug the other end of the
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    and is running on external AC power supplied through the AC adapter, the computer switches to battery power if the AC adapter is disconnected from the computer. NOTE: The display brightness is decreased to save battery life when you disconnect AC power. To increase display brightness, use the fn+f8
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    , and proper care and storage to maximize battery life ● Information on battery types, specifications, life cycles, and capacity To access Battery information: ▲ Select Start > Help and Support > Learning Center > HP Power and Battery Learning Center. Finding battery information in Help and
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    computer. To run Battery Check: 1. Connect the AC adapter to the computer. NOTE: The computer must be connected to external power for Battery Check to function properly. 2. Select Start > Help and Support > Troubleshooting tools > Battery Check. Battery Check examines the battery and its cells to
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    Displaying the remaining battery charge ▲ Move the pointer over the battery meter icon in the notification area, at the far right of the taskbar. Displaying the remaining battery charge 11
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    Inserting or removing the battery CAUTION: Removing a battery that is the sole power source can cause loss of information. To prevent loss of information, initiate Hibernation or shut down the computer through Windows before removing the battery. To insert the battery: 1. Turn the computer upside
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    ! Do not charge the computer battery while you are onboard aircraft. The battery charges whenever the computer is plugged into external power through an AC adapter, an optional power adapter, an optional expansion product, or an optional docking device. The battery charges whether the computer is
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    the features you use while on battery power. Maximum discharge time gradually shortens, as the battery storage capacity naturally degrades. Tips for maximizing battery discharge time: ● Lower the brightness on the display. ● Check the Power saver setting in Power Options. ● Remove the battery from
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    can be changed using Power Options in Windows Control Panel. Preferences set using Power Options do not affect lights. Identifying low battery levels When a battery that is the sole power source for the computer reaches a low battery level, the battery light blinks. If a low battery level is not
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    Hibernation, do not restore power until the power lights turn off. Resolving a low battery level when external power is available ▲ Connect one of the following devices: ● AC adapter ● Optional expansion product or docking device ● Optional power adapter Resolving a low battery level when a charged
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    you are onboard aircraft. NOTE: The battery charges whether the computer is off or in use, but it charges faster when the computer is off. To fully charge the battery: 1. Insert the battery into the computer. 2. Connect the computer to an AC adapter, optional power adapter, or optional expansion
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    not turn off the computer. 2. Run the computer on battery power until the battery is discharged. The battery light begins to blink when the battery has discharged to a low battery level. When the battery is discharged, the battery light turns off and the computer shuts down. Step 4: Fully recharge
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    7. Click OK. 8. Click Save changes. Calibrating a battery 19
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    Conserving battery power ● Select the Power saver power plan through Power Options under System and Security in Windows Control Panel. ● hotkeys to adjust screen brightness as needed. ● If you leave your work, initiate Sleep or Hibernation, or shut down the computer. 20 Chapter 3 Using battery power
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    of time. If a computer will be unused and unplugged from external power for more than 2 weeks, remove the battery and store it separately. To prolong the charge of a stored battery, place it in a cool, dry place. NOTE: A stored battery should be checked every 6 months. If the capacity is less than
  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 28
    ! 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. For additional information, refer to the Regulatory, Safety and Environmental Notices included with this computer. 22 Chapter 3 Using battery power
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    you to the HP Web site for more information about ordering a replacement battery. If the battery is possibly covered by an HP warranty, instructions include a warranty ID. NOTE: To ensure that you always have battery power when you need it, HP recommends purchasing a new battery when the storage
  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 30
    off the display and computer. Shut down the computer under any of the following conditions: ● When you need to replace the battery or access down the computer with the power button, the recommended procedure is to use the Windows Shut down command. To shut down the computer: NOTE: If the computer is
  • HP Presario CQ40-600 | Power Management - Windows 7 - Page 31
    A AC adapter, connecting 7 B battery calibrating 17 charging 13, 17 conserving power 20 discharging 14 disposing 22 inserting 12 low battery levels 15 recharging 18 removing 12 replacing 23 storing 21 Battery Check 10 battery light 13, 15 battery power 8 battery release latch 12 battery temperature
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Power Management
User Guide