[jakobnev]

Having the switch be a relay that is controlled by the no-charging (or no oil pressure) light seems simple enough.


Did you see this thread: http://ecomodder.com/forum/showthrea...uce-16992.html



An alternative is to have the extra batt supply current to your main batt trough a voltage regulator. That way it just regulates the voltage the same way the alternator does, and automatically increases the current when the alt drops out.