Bosch Professional GAA 12V-21 Original Instructions Manual page 15

Charging External USB Devices (see figure C)
You can use the USB port on the battery adapter to increase the battery runtime of vari-
ous battery-operated USB devices, e.g. mobile phones or MP3 players. This can also be
done whilst the garment is being heated.
Ensure that your external USB device can be charged using the USB port on the
u
battery adapter. Refer to the specifications related to this topic in "Technical
data".
Connect the charging cable of your USB device to the USB socket (2) on the battery ad-
apter (1).
Press the activation button (7) for approx. three seconds. The connected USB device
will be charged.
To save energy, the USB port is automatically deactivated after approx. 2 hours. If no
charging cable is connected, the USB port is automatically deactivated after 30 seconds.
Rectifying Faults
Problem
Heating element does not warm up.
External USB device cannot be charged
using the USB port.
A) Some external USB devices cannot be charged with this battery adapter despite being consist-
ent with the technical data.
Bosch Power Tools
Corrective measures
Charge the battery.
Connect the connector plug (8) correctly.
Charge the battery.
Connect the charging cable of the external
USB device to the USB socket (2) on the
battery adapter (1).
Press the activation button (7) for approx.
three seconds.
The external USB device cannot be
charged using the USB port on the battery
adapter (refer to specifications in "Tech-
A)
nical data" ).
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