The spade terminal on the alternator closest to the BAT output stud MUST turn off with the ignition or you will have a 2-3amp drain. This terminal is designed to be connected thru and idiot light to the ignition or some other switched power source. Some [very few} 10si will cut in from residual magnetism alone especialy with increased RPM but thats not how there intended to operate. 1wire alternators use a self energising regulator and don't require an exciter wire.
