Running The Notebook On Its Battery; Checking The Power Level Of The Battery - Fujitsu LifeBook T901 Series User Manual

Running the notebook on its
battery
This section describes the steps to run the
notebook on its internal standard battery.
1. 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.
18
Checking the power level of
the battery
When the notebook is turned on or when the
battery is being charged, the Battery Level
indicators
to show the power level of the battery.
■ Different power level of the
Power button
/ turns on with different color
battery
• Blue 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.