Lithium Ion Battery; Recharging The Batteries - Fujitsu Lifebook i-4190 User Manual

SECTION 2
1.

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
temperature range.
• When using a high current device such as a modem, DVD, or hard drive, using the AC adapter will
conserve your battery life.
CAUTION
Actual battery life will vary based on screen brightness, applications, features, power
management settings, battery condition and other customer preferences. Media player 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.
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.
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.

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.
Critical Point
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 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.
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