ISOLATOR question about Charging
Originally Posted by therussman2002
This is what I am after... My alternator has this sense wire (Ford Aspire) I have a 3 leg Vanner isolator installed. The big lug is connected to the center pole, and bat 1 and 2 respectivly.. My problem is what therussman2002 describes. As the alternator has the regulator built in and controls when its on between the S & L Wire... how would you wire it up to see the voltage of both batteries? I have it the way it is stock.. and at one point had JUST the starter on the front battery, and EVERYTHING else on the back battery.. But because the front battery is only drained for a second starting.. The alternator is only sensing that battery and ignorning the state of the second battery..
I too though diodes, but wouldnt that create a 24V current to the sense? if not, still would sense that 1 battery is 100% thus ignoring the second one and shutting down (IE: still say hmmmm i see 14.4v kick off)
Someone said there is some smart switch that can do this, but I've yet to find it.
I got this isolator and the reece lavelle alternator from an ambulance.. But the alt is toooo big for my little ford... So if anyone knows how to properly install this so it will correctly charge both batterys without connecting them ++ and -- because i want them separated (IE ISOLATED) from each other!