Rechargeable Battery; Charging, Caring For And Maintaining The Battery - Fujitsu LIFEBOOK U757 Operating Manual

Rechargeable battery

Rechargeablebattery Life,battery Battery Rechargeablebattery Rechargeablebattery
When not plugged into a mains socket, 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 500 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 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
Please note that the battery will not be charged if the battery status is between
90% and 100%. If the battery status is less than 90% and the mains adapter is
connected, the battery will be charged to 100%.
If the battery status is low, you will hear a warning alarm. If you do not connect
the mains adapter within approximately five minutes of the warning alarm described
above, your notebook will switch off automatically.
monitoring the battery charging level
Batterystatusmeter Battery
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.
Battery storage
Chargingcapacity,battery Self-discharge,battery Battery Battery
Store battery packs in a dry environment at a temperature between 0°C / 32°F and 30°C / 86°F. The
lower the temperature at which the batteries are stored, the lower the rate of self-discharge.
If you will be storing batteries for a longer period (longer than two months),
the battery charge level should be approx. 30 %. To prevent 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 optimal charging capacity of the batteries, the battery
should be completely discharged and then fully recharged.
If you do not use the batteries for long periods, remove them from the
notebook. Never store the batteries in the device.
Fujitsu
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Working with the notebook
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