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Ignition/Run Wire

803 Views 3 Replies 2 Participants Last post by  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?
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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?
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