Rechargeable Battery; Charging, Caring For And Maintaining The Battery - Fujitsu LIFEBOOK U939X Operating Manual

Working with the notebook

Rechargeable battery

Rechargeablebattery Battery Life,battery Rechargeablebattery Rechargeablebattery
During mobile use, the notebook runs on its built-in battery. You can increase the life of the battery
by caring for the battery properly. The average battery life is around 800 charge/discharge cycles.
You can extend the battery life by taking advantage of the available energy saving functions.

Charging, caring for and maintaining the battery

Battery Battery
The notebook's rechargeable battery can only be charged when the ambient temperature
is between 5 °C / 41 °F and max. 35 °C / 95 °F.
You can charge the battery by connecting the notebook to the mains adapter
(see "Mains adapter connecting", Page 18).
Please note that the rechargeable battery will not be charged if its state of charge is between
90 % and 100 %. If the state of charge of the rechargeable battery is less than 90 % and
the mains adapter is connected, the battery will be charged to 100 %.
If the battery is running low you will hear a warning alarm. If you do not connect the mains adapter
within five minutes of the warning alarm described above, your notebook will automatically switch off.
Monitoring the battery charging level
Battery Batterystatusmeter
Windows also has a "Battery status meter" in the taskbar for monitoring the battery capacity. When
you place the mouse pointer on the battery symbol, the system displays the battery status.
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