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Recharging the battery
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■Pressing the battery meter buttons on the battery. The battery meter lights 
indicate the percentage of battery charge remaining.
■Waiting for a Low Battery warning message to appear.
If your battery charge indicator displays what looks like an inaccurate charge, 
you may need to recalibrate the battery. For more information, see 
“Recalibrating the battery” on page 142.
Recharging the battery
The battery recharges while it is installed and your notebook is connected to 
AC power. While the battery is recharging, the battery charge indicator turns 
orange and the battery icon in the taskbar has a lightning bolt .
ImportantIf the power cord or battery icon does not appear on the 
taskbar, click the show hidden icons button. If the icon 
still does not appear, make sure that Always show icon 
on the taskbar is checked on the Power Options 
Properties Advanced tab. See “Changing advanced 
settings” on page 150 for more information.
Press 
here 
						

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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 periodically to maintain the accuracy 
of the battery gauge.
To recalibrate the battery:
1Connect the AC adapter, then turn on your notebook.
2As soon as it starts and you see a startup screen, press F2. The BIOS Setup 
utility opens.
3Open the Advanced menu.
4Highlight Battery Auto Learning, then select Enabled by pressing the 
spacebar.
5Open the Exit menu, then highlight Exit Saving Changes and press ENTER.
6Select Yes, then press ENTER.
The battery recalibration process begins and a screen opens showing you 
the progress. The entire process will take several hours.
When the recalibration has finished, the message “Press [Esc] key to exit” 
appears.
7Press ESC. The battery charge indicator now displays an accurate battery 
charge. If the battery charge indicator does not show an accurate charge, 
contact Gateway Technical Support.
ImportantDo not interrupt the battery recalibration process. If 
recalibration is interrupted, you must start the process over 
again. 
						

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Changing batteries
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Changing batteries
If your notebook is plugged into an AC outlet, you can change the battery while 
your notebook is turned on. If your notebook is not plugged into an AC outlet, 
you must turn your notebook off while changing the battery.
Replacing the battery
To replace the battery:
1If your notebook is on and is connected to AC power, go to Step 2.
-OR-
If your notebook is on and is not connected to AC power, save your work 
and turn off your notebook.
2Close the LCD panel.
3Disconnect your notebook from the optional port replicator (see 
“Disconnecting from the port replicator” on page 251).
4Turn your notebook over so the bottom is facing up.
WarningDanger of explosion if battery is incorrectly replaced.
Replace only with a Gateway M405 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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5Slide the battery release latch.
6Lift the battery out of the bay.
7Place a recharged battery into the bay and press down until it snaps into 
place.
8Turn your notebook over and reattach the optional port replicator.
9Open the LCD panel and press the power button. 
						

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Extending battery life
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Extending battery life
Conserving battery power
While using the battery to power your notebook, conserve power by:
■Dimming the display as low as is comfortable.
■Removing PC Cards and IBM Microdrive cards when you do not need 
them. Many PC Cards and Microdrive cards use a small amount of power 
while inserted, even if they are not being used.
■Modifying the power management settings for maximum power savings. 
For more information, see “Changing power settings” on page 147.
■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.
■Using Hibernate mode for maximum power savings while your notebook 
is not in use. For more information, see “Activating and using Hibernate 
mode” on page 151.
■Using the CD, DVD, or DVD/CD-RW drive only when necessary. These 
drives use a large amount of power.
■Recharging the battery often, taking an extra battery, and fully recharging 
the batteries before traveling. For more information, see “Recharging the 
battery” on page 141 and “Changing batteries” on page 143.
Using alternate power sources
To extend battery life, use alternate power sources whenever possible.
■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 surge protector.
■If you will have access to an EmPower™ in-flight power receptacle or an 
automobile cigarette lighter, use an airplane/automobile power adapter or 
power inverter. Save the battery for times when you cannot use a power 
adapter.
■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
You can use the following power modes to lengthen the life of your notebook’s 
battery:
■Standby - while your notebook is in Standby, it switches to a low power 
state where devices, such as the display and drives, turn off.
■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 your notebook, it reads the memory 
information from the hard drive and opens the programs and documents 
that were open when you activated Hibernate mode. For more information 
on using Hibernate mode, see “Activating and using Hibernate mode” on 
page 151.
Using power saving modes
Always save your work before using Standby mode. In Standby mode, your 
notebook 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 notebook saves all memory information to the 
hard drive, then turns the power completely off.
If your notebook 
is......and you want to... ...then
On Enter Standby mode Press FN+STANDBY.
-OR-
Close the LCD panel.
On Enter Hibernate mode 
(must be activated)In Windows XP, click Start, then click 
Tu r n O f f C o m p u t e r. 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.
In Standby or 
Hibernate modeExit Standby or 
Hibernate modePress the power button. 
						

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Changing power settings
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Changing power settings
You can change the function of the power button, Standby system 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 system key. You can also select which power saving mode 
is activated when you close the LCD panel.
Changing the power scheme
To change the power scheme:
1In 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
.
- OR -
In Windows 2000, click 
Start, Settings, then click Control Panel. The Control 
Panel window opens.
ImportantThe 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. A 
SpeedStep-equipped 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. Power schemes also set the speed of an 
Intel
® SpeedStep™-equipped processor in Windows XP. 
To change the SpeedStep settings in Windows 2000, see 
“Changing SpeedStep settings in Windows 2000” on 
page 153. 
						

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2Click/Double-click the Power Options or Power Management icon. The Power 
Options Properties dialog box opens.
3Click the arrow button to open the Power Schemes list, then click the power 
scheme you want.
- OR -
Set the timers, then click 
Save As and type a name for the scheme.
4Click OK.
Help and 
SupportFor more information about changing the power scheme 
in Windows XP, click Start, then click Help and Support.
Type the keyword power scheme in the Search box 
, then click the arrow. 
						

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Changing power settings
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Changing alarm options
To change the alarm options:
1In 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
.
- OR -
In Windows 2000, click 
Start, Settings, then click Control Panel. The Control 
Panel window opens.
2Click/Double-click the Power Options or Power Management icon. The Power 
Options Properties dialog box opens.
3Click the Alarms tab.
4Adjust the alarm settings.
5Click OK. 
						

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Changing advanced settings
To change advanced power management settings:
1In 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
.
- OR -
In Windows 2000, click 
Start, Settings, then click Control Panel. The Control 
Panel window opens.
2Click/Double-click the Power Options or Power Management icon. The Power 
Options Properties dialog box opens.
3Click the Advanced tab.
Help and 
SupportFor more information about changing the alarm options in 
Windows XP, click Start, then click Help and Support.
Type the keyword alarm options in the Search box 
, then click the arrow.