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Managing Power
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While your notebook is running on battery power, you should manage power consumption to get the most use out of the battery. This chapter shows you how to:
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Check and recharge the battery
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Recalibrate the battery
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Change batteries
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Extend the life of the battery by conserving battery power and using alternate power sources
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Change power-saving settings
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Monitoring the battery charge
Closely monitor the battery charge. When the battery charge gets low, change the battery or connect to AC power immediately to prevent losing any unsaved work.
Monitor the battery charge by:
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Double-clicking the power cord icon
or battery icon
in the taskbar. The Power Meter dialog box opens.
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If the power cord or battery icon does not appear on the taskbar, click the show hidden icons
button.
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Pressing Fn+Status to view the power status box, which opens in the upper-left corner of the display. The power status box shows the current power source, the battery charge, and the power management mode.
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Looking at the battery charge indicator:
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LED green - battery is fully charged.
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LED orange - battery is charging.
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LED red - battery is malfunctioning.
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The battery charge indicator only lights up when the notebook is plugged in.
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Pressing the battery meter buttons on the main battery and optional secondary battery. The battery meter lights indicate the percentage of battery charge remaining.
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Waiting for a Low Battery warning message to appear.
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If your battery charge indicators display what looks like an inaccurate charge, you may need to recalibrate the battery. For more information, see "Recalibrating the battery".
Recharging the battery
Both
the main and the optional secondary batteries recharge while they are
installed and your notebook is connected to AC power. While the
batteries are recharging, the battery indicator light turns orange and
the battery icon in the taskbar has a lightning bolt .
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If the power cord or battery icon does not appear on the taskbar, click the show hidden icons
button.
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Recalibrating the battery
If your notebook unexpectedly goes into Standby mode while you are using it but the battery charge is not low, you may need to recalibrate your battery. You should also recalibrate the battery once a year to maintain the accuracy of the battery gauge.
To recalibrate the battery:
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Connect
the AC adapter, then turn on your notebook.
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As soon
as it starts and you see a startup screen, press
F2. The
BIOS Setup utility opens.
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Open the
Advanced
menu.
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Highlight
Battery Auto
Learning, then select
Enabled
by pressing the spacebar.
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Open the
Exit
menu, then highlight
Exit Saving
Changes
and press
Enter.
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Select Yes, then press Enter.
The battery learning process begins and a screen opens showing you the
progress. The entire process will take several hours.
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Do not interrupt the battery recalibration process. If recalibration is interrupted, you must start the process over again.
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When the recalibration has finished, the message "Press [Esc] key to exit"
appears.
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Press Esc. The battery charge indicator now displays an accurate battery charge. If the battery indicator does not show an accurate charge, contact Gateway Technical Support.
Changing batteries
If your notebook is plugged into an AC outlet or if it has a charged secondary battery installed, you can change the main battery while the notebook is turned on. If your notebook has only one battery and it is not plugged into an AC outlet, you must turn the notebook off while changing the batteries.
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Danger of explosion if battery is incorrectly replaced.
Replace only with the Gateway 600 Li-Ion battery. Discard used batteries according to the manufacturer's instructions.
The battery used in this device may present a fire or chemical burn hazard if mishandled. Do not disassemble, heat above 212°F (100°C), or incinerate. Dispose of used battery promptly. Keep away from children.
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To replace the main battery:
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If your notebook is on and is plugged into an AC outlet or has a charged secondary battery installed, go to Step 2.
If your notebook is on and is not plugged into an AC outlet and does
not have a charged secondary battery installed, save your work and turn
off the notebook.
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Close
the LCD panel.
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Undock
the notebook from the port replicator (if docked), then turn your
notebook over.
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Slide the battery release latch.
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Lift the battery out of the bay.
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Place a recharged battery into the bay and press down until it snaps into place.
Installing a secondary battery
Your notebook's right-side modular bay accepts a secondary battery. The secondary battery charges when the notebook is connected to AC power.
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Danger of explosion if battery is incorrectly replaced.
Replace only with the Gateway 600 Li-Ion battery. Discard used batteries according to the manufacturer's instructions.
The battery used in this device may present a fire or chemical burn hazard if mishandled. Do not disassemble, heat above 100°C (212°F) or incinerate. Dispose of used battery promptly. Keep away from children.
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To install a secondary battery:
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If you
are removing a CD, CD-RW, DVD, combination DVD/CD-RW or diskette
drive, make sure the drive is empty.
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Make sure
your notebook is off (not in Standby or Hibernate mode).
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Close
the LCD panel, disconnect from the port replicator (see "Disconnecting
from the port replicator"), and turn your notebook over.
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Slide the bay module latch and press the bay module release button.
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Slide
the bay module out.
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Firmly push the secondary battery straight into the bay until the latch clicks into place.
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Open your notebook and press the power button.
Extending battery life
Conserving battery power
While using the battery to power your notebook, conserve power by:
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Dimming the display as low as is comfortable.
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Removing PC Cards when you do not need them. Many PC Cards use a small amount of power while inserted, even if they are not being used.
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Closing the LCD panel to turn off the display while you are not using your notebook. The display stays off until you open the panel again.
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Using the CD, DVD, CD-RW, or combination DVD/CD-RW drives only when necessary. These drives use a large amount of power.
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Using alternate power sources
To extend battery life, use alternate power sources whenever possible.
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If traveling internationally, take electrical adapters. Save the battery for times when you cannot use a power adapter. If you plan on taking your AC power adapter, also take a single-plug power surge protector.
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If you will have access to an EmPowerTM in-flight power receptacle or an automobile cigarette lighter, use an airplane/automobile power adapter. Save the battery for times when you cannot use a power adapter.
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To find AC power outlets in airports, look for them next to support pillars, in large areas such as boarding gates, and under banks of telephones.
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Changing power modes
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Standby - while your notebook is in Standby, it switches to a low power state where devices, such as the display and drives, turn off.
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Hibernate - (also called save to disk) writes all current memory (RAM) information to the hard drive, then turns your notebook completely off. The next time you turn on the notebook, it reads the memory information from the hard drive and opens the programs and documents that were open when you activated Hibernate. For more information on using Hibernate mode, see "Activating and using Hibernate mode".
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Using Standby mode
Always save your work before using Standby mode. When in Standby, your computer reduces or turns off the power to most devices except memory. However, the information in memory is not saved to the hard drive. If power is interrupted, the information is lost.
When in Hibernate mode, your computer saves all memory information to the hard drive, then completely turns off the power.
If your computer is...
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...and you want to...
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...then
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On
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Enter Standby mode
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Press Fn+Standby.
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On
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Enter Hibernate mode (must be activated)
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In Windows XP, click Start, then click Turn Off Computer. Press and hold Shift, then click Hibernate.
- OR -
In Windows 2000, click Start, then click Shut Down. Click the arrow button to open the What do you want your computer to do list, then click Hibernate. Click OK.
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In Standby or Hibernate mode
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Exit Standby or Hibernate mode
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Press the power button.
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Changing power settings
You can change the function of the power button, Standby key, and power-saving timers by changing power settings on your notebook.
You can customize power settings from the Windows Control Panel by selecting power schemes, setting power alarms, adjusting advanced power settings, and activating Hibernate mode.
Power schemes (groups of power settings) let you change power saving options such as when the display or hard drive is automatically turned off. You can select one of the defined power schemes or create a custom power scheme.
Alarms can alert you when the battery charge is low.
Advanced power settings let you assign different power saving modes to the power button and Standby key. You can also select which power saving mode is activated when you close the LCD panel.
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For more information about changing power settings in Windows XP, click Start, then click Help and Support.
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Changing the power scheme
To change the power scheme
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In Windows XP, click Start, then click Control Panel. The Control Panel window opens. If your Control Panel is in Category View, click Performance and Maintenance.
In Windows 2000, click Start, Settings, then click Control Panel. The
Control Panel window opens.
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Click/Double-click the Power Options or Power Management icon. The Power Options Properties dialog box opens.
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Click the arrow button to open the Power Schemes list, then click the power scheme you want.
Set the timers, then save your custom power scheme by clicking Save As
and typing a name for the scheme.
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Click OK.
Changing alarm options
To change the alarm options:
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In Windows XP, click Start, then click Control Panel. The Control Panel window opens. If your Control Panel is in Category View, click Performance and Maintenance.
In Windows 2000, click Start, Settings, then click Control Panel. The
Control Panel window opens.
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Click/Double-click
the
Power Options
or
Power Management
icon. The
Power Options Properties
dialog box opens.
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Click the Alarms tab.
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Adjust
the alarm settings.
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Click OK.
Changing advanced settings
To change advanced power management settings:
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In Windows XP, click Start, then click Control Panel. The Control Panel window opens. If your Control Panel is in Category View, click Performance and Maintenance.
In Windows 2000, click Start, Settings, then click Control Panel. The
Control Panel window opens.
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Click/Double-click
the
Power Options
or
Power Management
icon. The
Power Options Properties
dialog box opens.
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Click the Advanced tab.
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Click
the arrow button to open a
Power buttons
list, then click the power setting mode you want to use.
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Click OK.
Activating and using Hibernate mode
To activate Hibernate mode:
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In Windows XP, click Start, then click Control Panel. The Control Panel window opens. If your Control Panel is in Category View, click Performance and Maintenance.
In Windows 2000, click Start, Settings, then click Control Panel. The
Control Panel window opens.
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Click/Double-click
the
Power Options
or
Power Management
icon. The
Power Options Properties
dialog box opens.
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Click the Hibernate tab.
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Click the Enable hibernation check box, then click Apply. Hibernate mode is now an option you can select on the Power Schemes or Advanced tab in the Power Options Properties dialog box and in the Turn Off Computer or Shut Down Windows dialog box.
To use Hibernate mode:
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To use hibernation as a power savings mode, open the Power Options dialog box, then click the Power Schemes tab. Click the arrow button to open a System hibernates list, then click the time you want to use.
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Open the Power Options dialog box, then click the Advanced tab. Hibernate
is now an option in the Power buttons lists.
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To manually place your computer into hibernation:
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In Windows XP, click Start, then click Turn Off Computer. Press and
hold Shift, then click Hibernate.
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In Windows 2000, click Start, then click Shut Down. Click the arrow
button to open the What do you want your computer to do list, then
click Hibernate. Click OK.
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Changing SpeedStep settings
The
processor installed in your notebook may use Intel®
SpeedStep technology to conserve
battery power. A SpeedStep-equipped processor can change its operating
speed according to the power source. Your notebook's default settings
operate the processor at full speed while connected to AC power
and at reduced speed (which uses less power) while using battery power.
If you are using Windows XP, you can change the Intel SpeedStep
settings in the BIOS Setup utility. If you are using Windows 2000,
you can change the SpeedStep settings in Windows.
To change SpeedStep settings in Windows XP:
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Turn on
your notebook.
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As soon
as it starts and you see a startup screen, press
F2. The
BIOS Setup utility opens.
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Open the
Power
menu.
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Highlight
In Battery only,
then change the value by pressing
the
+
key.
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Highlight
In AC mode,
then change the value by pressing
the
+
key.
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Open the
Exit
menu, then highlight
Exit Saving
Changes
and press
Enter.
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Select
Yes,
then press
Enter.
To change SpeedStep settings in Windows 2000:
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Click
Start,
Settings,
then click
Control Panel.
The
Control Panel
window opens. Double-click the
Power Options
icon.
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Click the Intel SpeedStep technology tab.
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Change any of the following settings:
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To run the processor at full speed regardless of the power source,
click the arrow button to open the Running on batteries list, then
click Maximum Performance.
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To run the processor at reduced speed (using less power) regardless
of the power source, click the arrow button to open the Plugged
in list, then click Battery Optimized Performance.
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To turn off the SpeedStep technology control, click the Advanced
tab, click the Disable Intel SpeedStep technology control check box,
then click Apply.
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To remove the SpeedStep icon from the taskbar, click the Advanced
tab, click the Remove icon from taskbar check box, then click Apply.
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Click OK.
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