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User Installable Features
Lithium ion Battery
Your LifeBook notebook has a Lithium ion battery (and
possibly an optional modular battery) that provides
power for operating your notebook 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 exceed a low of 5°C
(41°F) or a high of 35°C (95°F). Extreme temperatures
not only reduce charging efficiency, but can also cause
battery deterioration. The charging indicator on the
Status Indicator panel will flash red for the affected
battery (battery 1 or 2) when you try to charge a
battery that is outside of operating temperature range.
(See Battery Charging Indicators on page 13 for more
information)
■
When using a high current device such as a modem,
DVD/CD-RW 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 1 indicator
located on the Status Indicator panel. The indicator
changes as the battery level changes. If you want to know
the condition of the secondary modular Lithium ion
battery, check the Battery Level 2 indicator located on
the Status Indicator panel.
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 notebook 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 notebook is in use while the
battery is charging.
If you want to charge the battery more quickly, put your
notebook into Suspend mode, or turn it off while the
adapter is charging the battery. (See Power Management
on page 32 for more information)
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 notebook will go into Suspend mode.
There is no guarantee that your data will be saved once
the notebook reaches this point
.
Do not leave a faulty battery in your
LifeBook notebook. It may damage your
AC adapter, optional Auto/Airline adapter,
another battery or your notebook itself. It
may also prevent operation of your
notebook by draining all available current
into the bad battery.
■
Battery life will vary based on screen
brightness, applications, features, power
management settings, battery condition
and other customer preferences. DVD,
CD-RW, CD-ROM, or hard drive usage
may also have a significant impact on
battery life. The battery charging capac-
ity is reduced as the battery ages. If your
battery is running low quickly, you
should replace it with a new one.
■
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 by disposing of batteries
properly. Check with your local govern-
ment authority for information on recy-
cling or disposing of old batteries. If you
cannot find this information elsewhere,
contact your support representative at
1-800-8Fujitsu (1-800-838-5487)
Make sure the Battery Charging indicator
and the percentage charge is shown inside
the Battery Level icon on the Status Indica-
tor Panel.
(See Battery Charging Indica-
tors on page 13 for more information)
Using heavy current devices such as Modem
or frequent DVD/CD-RW/CD-ROM
accesses may prevent charging completely.
P7230-B5FJ-2471-02EN-00.book Page 37 Wednesday, October 10, 2007 11:19 AM