Prodys PortaNet User Manual page 18

The power LED on the upper panel informs about the status of the battery and
the power supply. These are the possible status for this led:
-GREEN: The external power converter is powering the unit. The battery is
not connected.
-BLINKING ORANGE: The external power converter is powering the unit.
The battery is connected and it is being charged on the system.
-ORANGE: The external power converter is not powering the unit. The
battery is connected and powering the unit.
-BLINKING RED: The external power converter is not powering the unit.
The battery is connected and powering the unit, but it is about to run out
(about 20 minutes / 10% of battery capacity).
Once the unit is switched on, the boot sequence will start. This sequence will
take about 50 seconds to finish, when the screen will display the status display.
When the unit is starting, the Power LED will be blinking green.
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