FUJITSU LIFEBOOK C6577 - Manual (Page 51)

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L i t h i u m i o n B a t t e r y
Lithium ion Battery
Your Fujitsu 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 or a high of 35°C. 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 temp-
erature range. (See Battery Charging Indicators on
page 17 for more information)
■ When using a high current device such as a modem,
DVD, or 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 36 for more information
on Suspend 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 will go into Suspend mode.
There is no guarantee that your data will be saved once
the LifeBook reaches this point.
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
drive, 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.
C A U T I O N
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.
C A U T I O N
Under federal, state, or local law it may be illegal to dis-
pose 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 batter-
ies. If you cannot find this information elsewhere, con-
tact your support representative at 1-800-8FUJITSU
(1-800-838-5487).
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.
C A U T I O N
Using heavy current devices such as a Modem or
frequent DVD accesses may prevent charging completely.
C A U T I O N
Once the low battery notification message appears, 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 adapter as soon as
possible.
C A U T I O N
When you are in Suspend mode there must always be at
least one power source active. If you turn off the power
with the power switch, or remove all power sources
while your LifeBook is in Suspend mode, any data that
has not been saved to the hard drive will be lost.
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