Lithium Ion Battery; Recharging The Batteries - Fujitsu LifeBook E Series Owner's Manual

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
battery is durable and long lasting, but should not be
exposed to extreme temperatures, high voltages, chemi-
cals 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 (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 Indicators on
page 15 for more information)
When using a high current device such as a modem,
DVD drive, CD-RW drive, or the hard drive, using the
AC adapter will conserve your battery life.
C A U T I O N
Actual battery life will vary based on screen brightness,
applications, features, power management settings,
battery condition and other customer preferences.
DVD, CD-RW 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.
C A U T I O N
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.
W A R N I N G
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).
U s e r - I n s t a l l a b l e F e a t u r e s

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 notebook and connect the
AC or Auto/Airline adapter.
P O I N T
Make sure that the Battery Charging indicator and the
percentage charge is shown inside the Battery Level
icon on the Status Indicator Panel.
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 notebook 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 38 for more
information on Suspend mode and shutdown procedure)
C A U T I O N
Using heavy current devices such as Modem or
frequent DVD or CD-RW accesses may prevent
charging completely.
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 Suspend
mode. There is no guarantee that your data will not be
lost once the notebook reaches this point.
C A U T I O N
When the low battery message first appears, you need
to save all your active data and put your LifeBook
notebook into Suspend mode until you can provide a
new power source. You should provide power to your
notebook from a charged battery, an AC power
adapter, or Auto/Airline as soon as possible.
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