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User Installable Features
Lithium ion Battery
Your LifeBook has a Lithium ion battery that provides
power for operating your LifeBook when no external
power source is available. The battery is durable and
long lasting, but should not be exposed to extreme
temperatures, high voltages, chemicals or other hazards.
The Lithium ion battery operating time may become
shorter if it is used under the following conditions:
■
When used at temperatures that exceeds a low of
5°C (40°F) or a high of 35°C (95°F). Extreme tempera-
tures 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 temp-
erature range. See “Battery Charging Indicators” on
page 14.
■
When using a high current device such as a modem,
CD-ROM drive, or the hard drive, using the AC
adapter will conserve your battery life.
RECHARGING THE BATTERIES
If you want to know the condition of the primary
Lithium ion battery, check the Battery Level 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 or Auto/Airline adapter. To recharge the
battery make sure the battery that needs to be charged
is installed in your LifeBook and connect the AC or
Auto/Airline 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 LifeBook is in use while the
battery is charging. If you want to charge the battery
more quickly, put your LifeBook into Suspend mode,
or turn it off while the adapter is charging the battery.
See “Power Management” on page 32.
Low Battery State
When the battery is running low, your LifeBook will
beep every 15 seconds and the Battery Level indicator
will flash. If you do not respond to the low battery
alarm, the batteries will continue to discharge until they
are
too low to operate. When this happens there will be a
multiple beep alarm and the Battery Level indicator will
show a dead battery. Your LifeBook will then go into
Suspend mode to try and protect your data for as long
as possible. There is no guarantee that your data will not
be lost once the LifeBook reaches this point.
CAUTION
Actual battery life will vary based on screen brightness,
applications, features, power management settings,
battery condition and other customer preferences.
CD-ROM drive or hard drive usage may also have a
significant impact on battery life. The battery charging
capacity is reduced as the battery ages. If your battery is
running low quickly, you should replace it with a new
one.
CAUTION
Do not leave a faulty battery in your LifeBook. It
may damage your AC adapter, optional Auto/Airline
adapter, another battery or your LifeBook itself. It may
also prevent operation of your LifeBook by draining all
available current into the bad battery.
CAUTION
Under federal, state, or local law it may be illegal to
dispose of batteries by putting them in the trash. Please
take care of our environment and dispose of batteries
properly. Check with your local government 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).
POINT
Make sure that the Battery Charging indicator and the
percentage charge is shown inside the Battery Level
icon on the Status Indicator Panel.
CAUTION
Using heavy current devices such as Modem or
frequent CD-ROM and PCMCIA powered external
devices accesses may prevent charging completely.
CAUTION
You may not be able to hear the audio alarm if the
volume control is set too low or is turned off by either
the hardware or software. However, you will still be
able to see the Battery Level indicator flash. Once the
low battery alarm occurs you need to save all your
active data and put your LifeBook into Suspend mode
until you can provide a new power source. You should
provide a charged battery, an AC power adapter, or
Auto/Airline as soon as possible.
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