Fujitsu LIFEBOOK E557 Benutzerhandbuch - Seite 29

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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.

(This picture is for illustration purpose only and

may look different from the actual unit)

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.

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

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.