Display of information of power supply (Power) and the power supply alarm
The value of voltage of the external power supply
The value of voltage of the internal battery
NOTE
Both value are through internal circuit
The both above value are not the external power-supply voltage directly nor the value of the voltage
of the terminal of built-in battery because the both value passed internal circuits.
The power supply alarm
When the voltage value of the external source becomes 11.3V or less, it is displayed in red color.
In this case, please replace the external power supply immediately.
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