Working with t he notebook
Rechargeable battery
BatteryBatteryServicelife,batteryRechargeablebatteryBattery
During use as a portable, the noteboo k runs on its b uilt-in battery. You can increase
the service life of the b attery by caring f o r the battery prope rly. The avera ge battery
service life is around 500 charge/discharge cycles.
You can extend the battery service life by taking advantage of the available energy saving functions.
Charging, caring for and maintaining the ba ttery
BatteryBattery
The notebook battery can only be charged if the ambient temperature is be tween
5°C / 41°F and a maximum of 35°C / 95°F.
You can charge the battery by connecting the notebook to the AC adapter
(see "
Connecting the AC adapter", Page 21).
If the A C adapter is connected , charging will not begin if the battery is at least 90% charged. Once
the battery charge drops below 90%, and the AC adapter is connected, charging will begin.
If the batte ry is running low you will hear a warning alarm. If you do not connect the AC adapter
within five minutes of the warning alarm described abo ve, your notebook will automatically switch off.
Monitoring the battery state of charge
Batterybatterychargemeter
Windows also has a "Battery charge meter" in the taskbar for m onitoring the
battery capacity. When you place the mouse pointer on the battery symbol, the
system displays the state of charge of the battery.
Battery storage
BatteryBatterySelf-dischar
ge,battery
Chargecapaci
ty,batt ery
The battery should be stored in a dry environment at a tem peratu re between 0°C / 32°F and
30°C / 86°F. The lower the storage temperature, the lower the rate of self-discharge.
If you will be storing batteries for a longer period (m o re than two m onths),
the battery charge level should be approx. 30%. To p revent exhaustive
discharge which would permanently damage the battery, check the level
of charge of the battery at regular intervals.
To be able to make use of the optimum capacity of the battery, you should allow
the battery to fully discharge and then recharge it.
If yo u will not use batteries for long periods, r emove them from the
notebook. Never store batteries in the device.
Removing and installing the battery
Only us
e batteries approved by F ujitsu for your notebook.
Never u
se force when fitting or removing a battery.
Make s
ure that no foreign bodies get into the battery connections.
Never
store a battery for long periods in the discharged state. This
can m
ake it impossible to recharge.
Fujitsu 47
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