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LifeBook Q2000 Series User’s Guide
Lithium ion Battery
Your Fujitsu LifeBook notebook has a Lithium ion
battery that provides power for operating your note-
book when no external power source is available. The
rechargeable battery is durable and long lasting, but
should not be exposed to extreme temperatures, high
voltages, chemicals or other hazards. For information
on maximizing your battery life, refer to the section
entitled “Power Management” on page 27.
The Lithium ion battery operating time may become
shorter if it is used under the following conditions:
■
Your system is set to use the Max Battery power
scheme when running on battery power. If you change
the power scheme to a different profile, your battery
life may vary.
■
When used at temperatures that exceed a low of
5°C (40°F) or a high of 35°C (95°F). Extreme
temperatures not only reduce charging efficiency, but
can also cause battery deterioration. The charging
icon on the Status Indicator panel will flash when you
try to charge a battery that is outside its operating
temperature range. (See Battery Charging Indicator on
page 13 for more information)
■
When using a high current device such as an external
modem, DVD drive, or hard drive, using the AC
adapter will help conserve your battery life.
RECHARGING THE BATTERY
If you want to know the condition of the primary
Lithium ion battery, check the Battery Status indicator
located on the Status Indicator panel. The indicator
changes as the battery level changes.
The Lithium ion battery is recharged internally using
the AC adapter. To recharge the battery make sure the
battery that needs to be charged is installed in your Life-
Book notebook and connect the AC adapter
.
There is no memory effect on the Lithium ion battery
therefore you do not need to discharge the battery
completely before recharging. The charge times will be
significantly longer if your notebook is in use while the
battery is charging. If you want to charge the battery
more quickly, put your notebook into Standby mode, or
turn it off while the adapter is charging the battery. (See
Power Management on page 27 for more information on
Standby mode and shutdown procedure)
Low Battery State
When the battery is running low, a low battery notifica-
tion message will appear. If you do not respond to the
low battery message, the batteries will continue to
discharge until they are too low to operate. When this
happens, your LifeBook notebook will go into Standby
mode. There is no guarantee that your data will not be
lost once the notebook reaches this point
.
Note that you can change the state in which the battery
goes into Standby mode in the Power properties of the
Control Panel.
■
Do not leave a faulty battery in your
LifeBook notebook. It may damage your
AC adapter or your notebook itself. It
may also prevent operation of your
notebook by draining all available cur-
rent into the bad battery.
■
Under federal, state, or local law it may
be illegal to dispose of batteries by put-
ting them in the trash.Take care of our
environment and dispose of batteries
properly. Check with your local govern-
ment authority for details regarding
recycling or disposing of old batteries. If
you cannot find this information
elsewhere, contact your support
representative at: 1-800-8FUJITSU
(1-800-838-5487).
Actual battery life will vary based on
factors such as screen brightness,
applications, features, power management
settings, battery condition and other
customer preferences. External DVD/CD-
RW, DVD- writer, or hard drive usage may
also have a significant impact on battery
life. Battery charging capacity is reduced as
the battery ages. If your battery is running
low quickly, you should replace it.
Make sure the Battery Charging indicator
and the percentage charge is displayed by
the Battery Status icon on the Status
Indicator Panel.
Using high current devices such as an
external modem or frequent external
optical drive accesses may prevent
complete charging.
To prevent data loss, you should save all
active data and put your notebook into
Standby mode when the low battery
message appears, until you can provide a
new power source. When you are in
Standby mode, there must be at least one
power source active. If you turn off the
power with the power button, or remove
all power sources while your notebook is
in Standby mode, any data that has not
been saved to the hard drive will be lost.
You should provide AC power to your
notebook as soon as possible.
Q2010.book Page 32 Wednesday, May 24, 2006 1:36 PM
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