The Ford Barn - View Single Post - Dead 6V battery, 12V jump start with pos and neg wrong

Patrick L. · 03-21-2015, 11:42 AM

'A's' are positive ground originally. If yours is 6 volt with a generator it probably is + ground. If it has an alternator it could be either + or - ground.

The way to check is to remove the floor board cover n front of the front seat and look at the battery terminals. The rear terminal is usually the + and its cable attaches to the vehicles frame. The front terminal cable goes to the starter.

So it sounds as though you connected the jumper battery correctly. Was it connected to another vehicle ? or by itself ?

03-21-2015, 11:42 AM	#2
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Dead 6V battery, 12V jump start with pos and neg wrong 'A's' are positive ground originally. If yours is 6 volt with a generator it probably is + ground. If it has an alternator it could be either + or - ground. The way to check is to remove the floor board cover n front of the front seat and look at the battery terminals. The rear terminal is usually the + and its cable attaches to the vehicles frame. The front terminal cable goes to the starter. So it sounds as though you connected the jumper battery correctly. Was it connected to another vehicle ? or by itself ?