HP 6720s Power Management - Windows Vista
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- HP 6720s | Power Management - Windows Vista - Page 1
Power Management User Guide - HP 6720s | Power Management - Windows Vista - Page 2
© Copyright 2007 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 6720s | Power Management - Windows Vista - 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 - HP 6720s | Power Management - Windows Vista - Page 4
iv Product notice - HP 6720s | Power Management - Windows Vista - Page 5
power plans ...7 Setting password protection on wakeup 8 4 Using battery power Finding battery information in Help and Support 10 Displaying the remaining battery charge 11 Inserting or removing the battery ...12 Charging a battery ...13 Managing low battery levels ...14 Identifying low battery - HP 6720s | Power Management - Windows Vista - Page 6
Connecting the AC adapter ...23 Index ...24 vi - HP 6720s | Power Management - Windows Vista - Page 7
in the computer are fully charged. If the computer is not plugged into an external power source the light stays off until the battery reaches a low battery level. ● When the computer is off, press the button to turn on the computer. ● When the computer is on, press the button to initiate Hibernation - HP 6720s | Power Management - Windows Vista - Page 8
to exit Sleep. ● When the computer is in Hibernation, press the button briefly to exit Hibernation. If the computer has stopped responding and Windows® shutdown procedures are ineffective, press and hold the power button for at least 5 seconds to turn off the computer. To learn more about your - HP 6720s | Power Management - Windows Vista - Page 9
to use the preceding shutdown procedures, try the following emergency procedures in the sequence provided: ● Press ctrl+alt+delete, and then click the Power button. ● Press and hold the power button for at least 5 seconds. ● Disconnect the computer from external power and remove the battery. 3 - HP 6720s | Power Management - Windows Vista - Page 10
. To exit Sleep: ▲ Press the power button. When the computer exits Sleep, the power light turns on and your work returns to the screen where you stopped working. NOTE: If you have set a password to be required when the computer exits Sleep, you must enter your Windows password before your work will - HP 6720s | Power Management - Windows Vista - Page 11
Hibernate. To exit Hibernation: ▲ Press the power button. The power light turns on and your work returns to the screen where you stopped working. NOTE: If you have set a password to be required when the computer exits Hibernation, you must enter your Windows password before your work will return to - HP 6720s | Power Management - Windows Vista - Page 12
and select an item from the list. Different battery 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 critical battery level. To hide or display the battery meter icon: 1. Right-click the taskbar, and then - HP 6720s | Power Management - Windows Vista - Page 13
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 ▲ Move the pointer over the battery meter icon in the notification area, at the - HP 6720s | Power Management - Windows Vista - Page 14
on wakeup To set the computer to prompt for a password when the computer exits Sleep or Hibernation, follow these steps: 1. Select Start > Control Panel > System and Maintenance > Power Options. 2. In the left pane, click Require a password on wakeup. 3. Click Change Settings that are currently - HP 6720s | Power Management - Windows Vista - Page 15
. When the computer is plugged into external AC power, the computer runs on AC power. If the computer contains a charged battery 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 - HP 6720s | Power Management - Windows Vista - Page 16
on calibration, power management, 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 > Battery information. 10 Chapter 4 Using battery power - HP 6720s | Power Management - Windows Vista - Page 17
- Select Start > Control Panel > Mobile PC > Windows Mobility Center. The time shown indicates the approximate running time remaining on the battery if the battery continues to provide power at the current level. For example, the time remaining will decrease when a DVD is playing and will increase - HP 6720s | Power Management - Windows Vista - Page 18
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 - HP 6720s | Power Management - Windows Vista - Page 19
WARNING! 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 or an optional power adapter. The battery charges whether the computer is off or in use, but it charges faster when the computer - HP 6720s | Power Management - Windows Vista - Page 20
responses 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 or critical battery level, the battery light blinks. If a low - HP 6720s | Power Management - Windows Vista - Page 21
initiated Hibernation, do not restore power until the power light turns off. Resolving a low battery level when external power is available ▲ Connect one of the following devices: ● AC adapter ● Optional power adapter Resolving a low battery level when a charged battery is available 1. Turn off the - HP 6720s | Power Management - Windows Vista - Page 22
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 or optional power adapter, and then plug the adapter into external power. The battery light on the computer turns on. 3. Leave the computer plugged - HP 6720s | Power Management - Windows Vista - Page 23
drive speed will not decrease automatically when the computer is idle. ◦ System-initiated Hibernation will not occur. To discharge a battery: 1. Unplug the computer from its external power source, but do not turn off the computer. 2. Run the computer on battery power until the battery is discharged - HP 6720s | Power Management - Windows Vista - Page 24
plan, click Change plan settings. 3. Reenter the settings that you recorded for the items in the On battery column. 4. Click Change advanced power settings. 5. Click the plus sign next to Sleep, and then click the plus sign next to Hibernate after. 6. Reenter the setting that you recorded for - HP 6720s | Power Management - Windows Vista - Page 25
Conserving battery power ● Select low power-use settings through Power Options in Windows Control Panel. ● Turn off wireless and local area network (LAN) connections and exit modem applications when you are not using them. ● Disconnect external devices that are not plugged into an external power - HP 6720s | Power Management - Windows Vista - Page 26
periods 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. Calibrate a battery before using it if it has been stored for one month or more - HP 6720s | Power Management - Windows Vista - Page 27
risk of fire or burns, do not disassemble, crush, or puncture a battery; short the external contacts on a battery; or dispose of a battery in fire or water. Do not expose a battery to temperatures above 60˚C (140˚F). Replace the battery only with a battery approved for this computer. Refer to the - HP 6720s | Power Management - Windows Vista - Page 28
AC power External AC power is supplied through an approved AC adapter. 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 - HP 6720s | Power Management - Windows Vista - Page 29
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 power cord into an AC outlet (3). Connecting the AC adapter 23 - HP 6720s | Power Management - Windows Vista - Page 30
A AC adapter, connecting 23 B battery calibrating 16 charging 13, 16 conserving power 19 disposing 21 inserting 12 low battery levels 14 recharging 18 removing 12 storing 20 battery light 1, 13, 14 battery power 9 battery release latch 12 battery temperature 20 button, power 1 C calibrating battery - HP 6720s | Power Management - Windows Vista - Page 31
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Power Management
User Guide