User's Manual

General Dynamics ITRONIX | 72-0137-001
GD8000 User Guide
Operating with Battery Power
referred to as Suspend to RAM. When the computer returns
from Standby mode, the desktop appears with the same files
and programs open as when the computer was suspended.
Resume time is very quick.
For Windows Vista
Select Start, Turn off computer, Stand by
to enter Standby/Sleep mode.
For Windows XP
: Select Start, Shut Down, Stand by to enter
Standby/Sleep mode.
Hibernate
Hibernate, or Suspend to Disk, is similar to Standby except
the current state of the computer is copied to the hard disk in
a special file. Then, all devices in the computer are turned off.
When the computer returns from hibernation, the desktop
appears with the same files and programs open as when the
computer was suspended. Hibernation saves more power than
Standby, but takes slightly longer to resume.
For Windows XP:
On the System tray area of the Taskbar,
right click the Power Saver icon , then select Configure Power
Settings and make your desired changes.
For Windows Vista: On the System tray area of the Taskbar,
right click the DynaPower icon, then select DynaPower Grid
and make your desired changes.
Power Off
All applications are closed and the system shuts down. To
power off the computer select Start, Shut Down, Shut down.
Then click OK.
Battery Tips
Tip 1. Avoid excessive heat and cold
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Your battery will last longer during the day if it is used, charged
and stored between 50°F and 86°F (10°C and 30°C).

Charge the battery nightly where the temperature will remain
around 68°F (20°C). Your battery may not last as long through
the day if you charge it at higher or lower temperatures.
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Allow unrestricted airflow while the computer is connected
to external power. Make sure that the fan inlet and outlet are
unobstructed.
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Avoid exposure to extreme temperatures for long periods as this
can shorten battery charge life or damage the battery.
How your battery behaves in warm conditions

To prevent possible battery damage, the system may not allow a
charge if the battery temperature is above 122°F (50°C), such as
in a closed, unattended vehicle during the summer. In this case,
the
Battery LED may indicate the computer has stopped
charging your battery; however, your battery may not be fully
charged.
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If possible, turn off or suspend your computer while the battery
is charging in a warm environment to avoid over-heating.

In warmer temperatures, your battery may take much longer to
fully charge.
How your battery behaves in cold conditions

When using a battery in cold conditions, the battery capacity
may drain significantly faster than normal.

To prevent possible battery damage, the system will not allow
a charge if the battery temperature is below 41°F (5°C), such as
in a closed, unattended vehicle during the winter. In this case,
the
Battery LED may indicate the computer has stopped
charging your battery; however, your battery may not be fully
charged

In cooler temperatures, your battery can take much longer to
fully charge.
Tip 2. Prevent wasted power

Manually turn off or suspend your computer whenever you are
not using it.

Reduce the screen brightness. Decrease brightness by pushing
FN + F6.
Increase it by pushing FN + F7.

Enable the display’s automatic dimming feature.
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Use the AC adapter or vehicle adapter whenever possible.
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Use the Power Saver utility (Windows XP) to help save power
or the
DynaPower utility (Windows Vista).

When running on battery power, make sure your system
suspends automatically after a few minutes of inactivity. PC
Cards, radios, custom applications, or modified system settings
may affect this.

Remove PC Cards and unplug peripherals when you are not
using them. They may draw power from the system even when
not in use.

Avoid operating the fax/modem, or audio and video applications
when using battery power. Operating a fax/modem, video, or
audio equipment increases the computer’s power requirements

Don’t use screen savers as they draw excessive current,
especially “3D” screen savers.

Turn off the Wireless LAN when not using it. Turning on the
Wireless LAN increases the computer’s power requirements.

Avoid or minimize using applications that keep the CPU busy
a large percentage of the time. The following will help you
determine if your system is running such applications:
Identifying power wasting programs
To determine if applications or processes are keeping the CPU
busy:
1.
Start the Task Manager utility. To open Windows Task
Manager
, right-click an empty space on the taskbar, and then
click
Task Manager.