Just hooked the new 18" raydome up t omy Raymarine
C80 display, and it is working fine.
However, I noticed that I had let's say 12.60 volts at my DC panel (using a meter accross the back posts of the old broken old analog battery
gauge), whereas I only measured about 12.00 a few feet away at the connection block, where the Raymarine
power is attached.
As I thought this drop seemed excessive, I temporairly connected in a larger (12Ga) wire from the DC panel, to the Raymarine power connection point only, and still had ablou the same drop.
1. Is this normal, or easily explained?
2. Is the fact that I am metering voltage at the DC panel, with little of no amperage draw on it, giving me the higher reading, whereas a few feet away I am measuring with the power to the unit turned on?
The feed to the DC panel (from the battery
switch) is original, and perhaps undersized, but since I didn't have any other circuits on at the panel, I would not think this would be an issue. I could see if I was running the cabin
or bilge pump
, etc at the same time, all over a possibly undersized feed!