This is the digital variant... Normally, when you are running the car with aircon and headlights, it should read 13V+ and you should have a healthy and robust setup
This is more or less the LED variant. Locally, a variant has 4 green LEDs and 1 red LED... If one green LED is on, your voltage is at least 10.5V
two green LEDs : at least 11.5V
three green LEDs : at least 12.5V
four green LEDs : at least 13.5V
You figure.
Another variant is a combination of red and green and yellow LEDs with various voltage equivalents.
All can be plugged in to your lighter interface. All our rides have one of these 3 variants.
Again,- in conjunction with your ammeter (idiot lamp monitor for battery charging),- you have an effective monitor for your battery and alternator... voltage + current,- they should correlate....
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