[jeffreybandel]

I am installing a battery isolator that requires external excitation. I need to run a wire to the isolator that provides 12 volts at starting and then provides 0 volts. Anyone know where I can tap into?

 

[yan7gin]

Will the signal for starter solenoid work ???? this will give you 12V signal when cranking and 0V once the truck is running.

what type of battery isolator are you installing? are you installing a 3rd battery?

 

[jeffreybandel]

Will the signal for starter solenoid work ???? this will give you 12V signal when cranking and 0V once the truck is running. I think so. Is there an easy place to splice into it? I looked but couldn't find it. Right now I am tapped into the GPR. It works but I'm not sure if I should be flowing that extra voltage into the Isolator.

what type of battery isolator are you installing? are you installing a 3rd battery?

It is a Sureflow 1230-3A. I am installing 2 aux. batteries (in addition to the 2 main batteries).

 

[jeffreybandel]

I think the starter solenoid would work. Is there an easy place to splice into it? Rights now I am tied into the GPR but it puts out voltage while it is running.