Running Lifebook On Its Battery; Checking The Power Level Of The Battery - Fujitsu Lifebook U729 User Manual

Running LIFEBOOK on its Battery

This section describes the steps to run the
notebook on its internal standard battery.
Disconnect the AC adapter from your notebook
and press the power button.
Power Button
(This picture is for illustration purpose only and
may look different from the actual unit)
P O I N T
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.
Getting to Know Your LIFEBOOK
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
• White lamp is lit
Remaining battery level: 100% – 51%
• Amber lamp is lit
Remaining battery level: 50 – 13%
• Red lamp is lit
Remaining battery level: 12% or below
• Red lamp flashes
Abnormal battery condition.
• OFF
Battery pack disconnected.
P O I N T
Due to certain characteristics of battery,
the Battery Level Indicators may not
correctly show the remaining power of
the battery, especially under extreme
temperature conditions.
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