Originally Posted by BogiesAnnex1
It will hold 12 volts with the engine turning 2000 RPM but as soon as I hit city stop and go traffic and the cooling fans come on the voltage drops under 12. So I think I'll be shopping for a replacement before too long.
That is exactly what the problem is with the one wire set up. I say it a thousand times. One wire is for lawn mowers, tractors and gas powered welder type of operational conditions.
It is easily seen when a car is using the one wire deal. When looking at a line of cars stopped, the car with the dim & yellow head lights is the 1 wire set up. Three wire has the same intensity no matter what the RPM.
I not going to bother explaining the why, cause it has been over and over and over.
You will never have the problem with the 3 wire set up....... you're certainly free to ignore the advise.