9
Using Your LIFEBOOK
Running LIFEBOOK on its Battery
This section describes the steps to run the
notebook on its internal standard battery.
Power Button
(This picture is for illustration purpose only and
may look different from the actual unit)
Disconnect the AC adapter from your notebook
and press the power button.
Checking the power level
of the battery
When the notebook is turned on or when the
battery is being charged, the Battery Level
indicators turns on with different color to
show the power level of the battery.
■ Different power level of the battery
• Green lamp is lit
Remaining battery level: 100% – 50%
• Orange lamp is lit
Remaining battery level: 49 – 13%
• Red lamp is lit
Remaining battery level: 12% or below
The power level of the battery decreases
faster when it is used in a cold place.
The chargeability of the battery decreases
after it has been used over a long period
of time. If the battery runs down very fast,
replace it with a new battery.
When an optional modular bay battery
is installed, it is charged along with the
internal standard battery.
Due to certain characteristics of Li-ion
battery, the Battery Level Indicators may
not correctly show the remaining power
of the battery, especially under extreme
temperature conditions.
When the battery is 90% or more
charged, it cannot be recharged even
if the AC adapter is connected to the
notebook. The battery can be recharged
when its remaing is 89% or less.
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