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Chapter 3
User-Installable Features
Lithium ion Battery
Your LIFEBOOK notebook has a Lithium ion 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 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 Multi-Format DVD Writer, CD-ROM drive, optical drive, or the hard
drive, using the AC adapter will conserve your battery life.
D
O
NOT
LEAVE
A
FAULTY
BATTERY
IN
YOUR
NOTEBOOK
. I
T
MAY
DAMAGE
YOUR
AC
ADAPTER
,
OPTIONAL
A
UTO
/A
IRLINE
ADAPTER
,
ANOTHER
BATTERY
OR
YOUR
NOTEBOOK
ITSELF
. I
T
MAY
ALSO
PREVENT
OPERATION
OF
YOUR
NOTEBOOK
BY
DRAINING
ALL
AVAILABLE
CURRENT
INTO
THE
BAD
BATTERY
.