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Summary of Contents for HP Power Management System
- Page 1 Power Management User Guide...
- Page 2 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 accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
- Page 3 Product notice This user guide describes features that are common to most models. Some features may not be available on your computer.
- Page 4 Product notice...
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Page 5: Table Of Contents
Table of contents 1 Setting power options Using power-saving states ... 1 Initiating and exiting Sleep ... 1 Initiating and exiting Hibernation ... 2 Using the battery meter ... 3 Using power plans ... 4 Viewing the current power plan ... 4 Selecting a different power plan ... - Page 6 4 Shutting down the computer Index ... 25...
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Page 7: Setting Power Options
Setting power options Using power-saving states The computer has two power-saving states enabled at the factory: Sleep and Hibernation. When Sleep is initiated, the power lights blink and the screen clears. Your work is saved to memory, letting you exit Sleep faster than exiting Hibernation. If the computer is in the Sleep state for an extended period or if the battery reaches a critical battery level while in the Sleep state, the computer initiates Hibernation. -
Page 8: Initiating And Exiting Hibernation
When the computer exits Sleep, 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 Windows password before your work will return to the screen. Initiating and exiting Hibernation The system is set at the factory to initiate Hibernation after 120 minutes (2 hours) of inactivity when running on battery power, 1,080 minutes (18 hours) of inactivity when running on external power, or... -
Page 9: Using The Battery Meter
Using the battery meter The battery meter is located in the notification area, at the far right of the taskbar. The battery meter allows you to quickly access power settings, view remaining battery charge, and select a different power plan. ●... -
Page 10: Using Power Plans
Using power plans A power plan is a collection 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 Move the pointer over the battery meter icon in the notification area, at the far right of the taskbar. -
Page 11: Setting Password Protection On Wakeup
Setting password protection on wakeup To set the computer to prompt for a password when the computer exits Sleep or Hibernation, follow these steps: Select Start > Control Panel > System and Maintenance > Power Options. In the left pane, click Require a password on wakeup. Click Change Settings that are currently unavailable. -
Page 12: Using External Ac Power
External AC power is supplied through one of the following devices: 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. ● Approved AC adapter ●... -
Page 13: Connecting The Ac Adapter
Connecting the AC adapter WARNING! To reduce the risk of electric shock or damage to the equipment: Plug the power cord into an AC outlet that is easily accessible at all times. Disconnect power from the computer by unplugging the power cord from the AC outlet (not by unplugging the power cord from the computer). -
Page 14: Using Battery Power
WARNING! To reduce potential safety issues, use only the battery provided with the computer, a replacement battery provided by HP, or a compatible battery purchased from HP. 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. -
Page 15: Finding Battery Information In Help And Support
Finding battery information in Help and Support The Battery information section of the Help and Support Learning Center provides the following tools and information: ● Battery Check tool to test battery performance ● Information on calibration, power management, and proper care and storage to maximize battery life ●... -
Page 16: Using Battery Check
Using Battery Check Battery Check, a part of the Total Care Advisor, provides information on the status of the battery installed in the computer. To run Battery Check: Connect the AC adapter to the computer. NOTE: The computer must be connected to external power for Battery Check to function properly. Select Start >... -
Page 17: Displaying The Remaining Battery Charge
Displaying the remaining battery charge Move the pointer over the battery meter icon in the notification area, at the far right of the taskbar. ▲ – or – View the estimated number of minutes of battery charge remaining in Windows Mobility Center: Click the battery meter icon, and then click Windows Mobility Center. -
Page 18: Inserting Or Removing The Battery
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: Turn the computer upside down on a flat surface. -
Page 19: Charging A Battery
Charging a battery 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, an optional power adapter, an optional expansion product, or an optional docking device. The battery charges whether the computer is off or in use, but it charges faster when the computer is off. -
Page 20: Maximizing Battery Discharge Time
Maximizing battery discharge time Battery discharge time varies depending on 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. ●... -
Page 21: Managing Low Battery Levels
Managing low battery levels The information in this section describes the alerts and system responses set at the factory. Some low- battery alerts and system 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 battery level, the battery light blinks. -
Page 22: Resolving A Low Battery Level
Resolving a low battery level CAUTION: To reduce the risk of losing information when the computer reaches a critical battery level and has initiated 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: ▲... -
Page 23: Calibrating A Battery
Calibrating a battery Calibrate a battery under the following conditions: ● When battery charge displays seem inaccurate ● When you observe a significant change in battery run time Even if a battery is heavily used, it should not need to be calibrated more than once a month. It is also not necessary to calibrate a new battery. -
Page 24: Step 3: Discharge The Battery
Step 3: Discharge the battery The computer must remain on while the battery is being discharged. The battery can discharge whether or not you are using the computer, but the battery will discharge faster while you are using it. ● If you plan to leave the computer unattended during the discharge, save your information before beginning the discharge procedure. -
Page 25: Step 4: Fully Recharge The Battery
Step 4: Fully recharge the battery To recharge the battery: Plug the computer into external power and maintain external power until the battery is fully recharged. When the battery is recharged, the battery light on the computer turns off. You can use the computer while the battery is recharging, but the battery will charge faster if the computer is off. -
Page 26: Conserving Battery Power
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 source, when you are not using them. -
Page 27: Storing A Battery
Storing a battery CAUTION: To prevent damage to a battery, do not expose it to high temperatures for extended 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. -
Page 28: Disposing Of A Used Battery
Disposing of a used battery WARNING! To reduce the 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). -
Page 29: Replacing The Battery
Battery Check notifies you to replace the battery when an internal cell is not charging properly, or when the battery storage capacity has reached a ”weak” condition. A message refers 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. - Page 30 Shutting down the computer CAUTION: Unsaved information will be lost when the computer is shut down. The Shut Down command closes all open programs, including the operating system, and then turns off the display and computer. Shut down the computer under any of the following conditions: ●...
- Page 31 Index AC adapter, connecting 7 battery calibrating 17 charging 13, 17 conserving power 20 discharging 14 disposing 22 inserting 12 low battery levels 15 recharging 19 removing 12 replacing 23 storing 21 Battery Check 10 battery light 13, 15 battery power 8 battery release latch 12 battery temperature 21 calibrating battery 17...