11-3
: indicates that the device is powered by a battery.
: indicates that the device is powered by a battery and the
battery power is low.
: indicates that the battery is almost depleted and needs to
be charged immediately. Otherwise, the device will automatically
shut down soon.
: indicates that no battery is installed or battery charging fault.
Power supply
: indicates that a DC power supply is connected. Not displayed when
not connected.
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