|
First I would be sure the alternator is working. Be sure the voltage rises when the alternator is charging.
One of the home built manual charge regulators I have on my boat, is 3 diodes, with switches to choose none, 1, 2 or 3 diodes, in the sense wire from the alternator. With very low voltage in the batteries, it shouldn't make a difference, as the regulator already sees low voltage and puts out more charge. They come in handy when you want to charge to a higher voltage than the regulator is designed for.
The other system I made was just a reostat in the field wire. I used this system almost all the time.
|