the voltmeter on my pickup reads in between 14V and 16 V (approx 15V). but my digital tester reads 14.3V at the voltmeter terminals (not on the battery). so charging system is fine and voltmeter is, let's just say, "defective".

Circuit voltmeter VMG-12 V black face with a resistance reading of 306 ohms (not installed). my plan is to add a resistor in series before the gage. ohms law computations tells me to add an aditional 15 ohms.

is it advisable to do so?anybody tried this one. tia