Originally Posted by VinceU
Something called voltage drop esp with low voltage DC circuits can be very important. Longer wire= more resistance, heat and less power available.
The current draw (microamps), and hence voltage drop in the wiring of a voltmeter is meaningless compared to our other 12V accessories.
The leads to my permanently installed Drak digital voltmeter ($8 Amazon) are 20 gauge. I used 14 gauge wire (about 5ft) to connect the voltmeter to the nearest 12 volt source because that's what I had on hand.
2019 Flagstaff T21TBHW A-frame
2008 Hyundai Entourage minivan
camping Colorado and adjacent states one weekend at a time