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GD2000 User Guide
The computer operates on AC or battery power. This section explains
how your computer manages and conserves power and details
important information for the times you will use it on battery power.
Be sure to read the
Battery Safety and Precautions
The Battery
The computer uses a "smart" Lithium-Ion (standard - 59WHR)
„
battery to provide long battery life.
The battery's temperature sensor and memory device store infor-
„
mation, such as how much charge is left and how many times it
has been recharged.
The
battery alarm beeps or displays a warning on your screen
„
when battery power is critically low. Save your work and
recharge the battery when this happens.
To see how much battery power remains, move the cursor to
„
Power Saver
the
icon (
Taskbar
. The status will show in a pop-up when you hover your
cursor over the icon.
Whenever possible, use the AC adapter. It is also advisable to
„
have an extra fully-charged battery available as backup.
Using a battery for the first time
Before using a battery for the first time:
1.
Connect the AC adapter to the computer, then to a power
source.
2.
Calibrate the battery to set the gas gauge to accurately reflect
battery capacity.
You only need to do this once with a new battery or with a
battery that's been stored without being used for a long time.
Remove the battery if the computer will be stored for more
than two weeks.
Battery and Temperature
The battery is most efficient at room temperature, 20°C (68°F).
While it operates in a wide temperature range, battery capac-
ity is affected by higher or lower temperatures. However,
storing Li-Polymer or Lithium-Ion batteries at low temperatures
reduces aging effects.
Temperature Approximate
0°C (32°F)
20°C (68°F)
45°C (113°F)
note
While the battery may not provide 100% capacity at
temperature extremes, its capacity returns to normal when its
temperature normalizes around 20°C (68°F).
General Dynamics Itronix 72-0139-001
section.
System Tray
or
) in the
area of the
Available
Capacity
80%
100%
100%
Battery Calibration
Over time, as the battery is repeatedly drained and recharged,
battery runtime may decrease. Calibrate the battery the first
time you use it and then periodically for maximum perfor-
mance.
The calibration process empties and charges the battery. This
allows the Windows
battery gauge to accurately monitor
®
battery status. An accurate gas gauge enables the computer
to warn you about a low battery before any data is lost during
a low battery critical shutdown. It also allows you to detect
when batteries have reached the end of their useful life.
Battery calibration will take up to 8 hours, depending on how
much power the battery already contains.
When to calibrate the battery:
The first time you use it
„
After it has been in storage
„
If the gas gauge has become inaccurate
„
Every three months for optimum performance
„
Windows
XP Battery Calibration
®
1.
Start, All Programs
Select
2.
Battery Calibration
Select
Windows
Vista Battery Calibration
®
1.
DynaPower
Right click on the
2.
DynaPower Battery Calibration
Select
left side of the screen. The
asking if you'd like to start the calibration process.
note
The battery calibration process may take up to 8 hours
to complete.
3.
Select
Start
to begin calibrating or
Windows
7 Battery Calibration
®
1.
To run the battery calibration program select
grams
Mobile Computer Tools
, and
2.
Next, select
DynaPower Battery Calibration
pop-up window asking if you want to allow the program to
make changes to the computer, select
3.
Select Start to begin calibrating or Cancel to exit.
note
The battery calibration process may take up to 8 hours
to complete.
BIOS Level Battery Calibration Process
note
BIOS level calibration may not be available with all
General Dynamics Itronix computers. Use the Windows
tery Calibration utility for models not equipped with a BIOS
calibration option.
Battery Power
Mobile Computer Tools
, and
.
Taskbar
icon
in the
.
from the menu on the
Calibration window
will display,
Cancel
to Exit.
Start, All Pro-
.
. If you get a
Yes
.
.
®
Bat-
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Troubleshooting
