Connecting external devices
USB port with c harging function
USBchargingfunction
It is recommended that the notebook be operated with the power supply connected
whenever the USB port with charging function is in use, as this function will drain
the battery more quickly if an external USB device is being charged.
The power supply unit must already be connected when the notebook is
switched off, as otherwise the USB charging function will be disabled and
the connected USB device s will not be charged.
Some USB devices (e.g. mobile telephones) require a driver in order to utilise the
USB charging function. In this case the USB charg ing function will not work when the
notebook is switched off, as no drivers are active when the notebook is switched o ff.
You can use this
USB port to charge or supply power to a USB device (e.g. to charge a PD A
or a mobile phon
e or to connect a USB lamp), e ven if the notebook is switched off.
68 Fujitsu Technology Solutions
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