The Ford Barn

mjdunn · 07-22-2013, 02:51 PM

Is there any such thing as a jumper cable that you can put on a 12 volt battery and it will reduce the voltage to 6 volt, so you can jump start from a 12 volt to a 6 volt?

51 MERC-CT · 07-22-2013, 02:58 PM

Never heard of such a thing but you can jump 12 volts directly to the starter motor.

FlatheadTed · 07-22-2013, 03:01 PM

They are not needed so long as you understand a little sparky .One cable to earth and one to the cable on the starter side ,Use the earth to make the contact ,

hoop98 · 07-22-2013, 03:06 PM

Quote:

Originally Posted by mjdunn

Is there any such thing as a jumper cable that you can put on a 12 volt battery and it will reduce the voltage to 6 volt, so you can jump start from a 12 volt to a 6 volt?

Just about any cheap set of POS Jumper Cables will have plenty of Voltage drop....Try the Dollar Store

Bruce Lancaster · 07-22-2013, 03:38 PM

Just use positive to positive, negative to negative, ans leave everything but ignition switched off so you don't fry a radio or pop a bulb. Works fine.

PeteVS · 07-22-2013, 03:42 PM

Sponsored Links (Register now to hide all advertisements)

Years ago, I saw someone jumping a Model A with a 12V battery and a piece of #12 romex with big alligator clips. The insulation on the romex was melting and smoking!

PS: You want to make your last connection on a ground. Making that connection on the battery itself (either one) could ignite some Hydrogen gas which would likely be present.

Mike51Merc · 07-22-2013, 05:51 PM

Quote:

Originally Posted by hoop98

Just about any cheap set of POS Jumper Cables will have plenty of Voltage drop....Try the Dollar Store

OK Hoop, you made me laugh out loud, now go do a f-in intro before the forum police eat you for lunch.

Mike in AZ · 07-22-2013, 10:32 PM

we got forum police??.....nahhhh, this ain't the HAMB....welcome to the 'Barn, hoop98...got pics??...lol....Mike

Ralph Moore · 07-23-2013, 09:17 AM

I remember jump starting my 55 Ford with one piece of wire. We just touched the bumpers together for the ground.
Can't do that any more with these plastic cars.

32phil · 07-23-2013, 10:23 AM

Just jumped a 6V with 12V. We put one cable on the POS post on both cars. Then we put the other cable on the 6V NEG Post. Hit the starter button on the 6V car and touched the other end to the chassis..... NOT THE BATTERY.... of the 12V car. It spun pretty quick and started up. Disconnected the cables immediately. Jumping 12 to 6 is for a really quick jump.....not for grinding the 6V starter until you kill the 12V. The 6V car should be ready to go before you jump it. You should KNOW you have fuel, compression and spark and have already tried the 6V battery by itself. I have a 6V/12Vbattery charger with a START position that puts out more current to jump start. I prefer that before a "jump". I remember my uncle jump starting my Dad's 54 Chevy with his new 55 Buick. That's the way they did it then.

VeryTangled · 07-23-2013, 01:45 PM

Here's a thread where it's hashed out. It starts a little slowly but picks up.

https://www.fordbarn.com/forum/showth...=jump+starting

Also Old Henry posted a thread, I couldn't find it easily, about a road trip he did this past winter in frigid temperatures. There's a great photo of his three posts from the end of the above thread showing a great way to do it.

-VT/JeffH

07-22-2013, 02:58 PM	#2
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: 6 volt jumper cables? Never heard of such a thing but you can jump 12 volts directly to the starter motor. __________________ DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES

07-22-2013, 03:01 PM	#3
FlatheadTed Senior Member Join Date: May 2010 Location: Auckland Posts: 4,705	Re: 6 volt jumper cables? They are not needed so long as you understand a little sparky .One cable to earth and one to the cable on the starter side ,Use the earth to make the contact , __________________ http://www.flatheadted.com Flathead Ted brake Floaters ,

07-22-2013, 03:38 PM	#5
Bruce Lancaster Member Emeritus Join Date: May 2010 Location: Madison, NJ Posts: 5,230	Re: 6 volt jumper cables? Just use positive to positive, negative to negative, ans leave everything but ignition switched off so you don't fry a radio or pop a bulb. Works fine.

07-22-2013, 03:42 PM	#6
PeteVS Senior Member Join Date: May 2010 Location: FP, NJ Posts: 2,770	Re: 6 volt jumper cables? Sponsored Links (Register now to hide all advertisements) Years ago, I saw someone jumping a Model A with a 12V battery and a piece of #12 romex with big alligator clips. The insulation on the romex was melting and smoking! PS: You want to make your last connection on a ground. Making that connection on the battery itself (either one) could ignite some Hydrogen gas which would likely be present. __________________ Don't never get rid of nuthin!

07-22-2013, 10:32 PM	#8
Mike in AZ Senior Member Join Date: May 2010 Location: Waddell, AZ Posts: 2,540	Re: 6 volt jumper cables? we got forum police??.....nahhhh, this ain't the HAMB....welcome to the 'Barn, hoop98...got pics??...lol....Mike

07-22-2013, 02:51 PM	#1
mjdunn Senior Member Join Date: May 2013 Location: Dry Ridge, KY Posts: 107	6 volt jumper cables? Is there any such thing as a jumper cable that you can put on a 12 volt battery and it will reduce the voltage to 6 volt, so you can jump start from a 12 volt to a 6 volt?

07-23-2013, 09:17 AM	#9
Ralph Moore Senior Member Join Date: Oct 2010 Location: North Pole, Alaska Posts: 1,470	Re: 6 volt jumper cables? I remember jump starting my 55 Ford with one piece of wire. We just touched the bumpers together for the ground. Can't do that any more with these plastic cars.

07-23-2013, 10:23 AM	#10
32phil Senior Member Join Date: May 2010 Location: Montgomery, NY & Port St. Lucie Florida Posts: 936	Re: 6 volt jumper cables? Just jumped a 6V with 12V. We put one cable on the POS post on both cars. Then we put the other cable on the 6V NEG Post. Hit the starter button on the 6V car and touched the other end to the chassis..... NOT THE BATTERY.... of the 12V car. It spun pretty quick and started up. Disconnected the cables immediately. Jumping 12 to 6 is for a really quick jump.....not for grinding the 6V starter until you kill the 12V. The 6V car should be ready to go before you jump it. You should KNOW you have fuel, compression and spark and have already tried the 6V battery by itself. I have a 6V/12Vbattery charger with a START position that puts out more current to jump start. I prefer that before a "jump". I remember my uncle jump starting my Dad's 54 Chevy with his new 55 Buick. That's the way they did it then. __________________ Early Ford Lock & Key Service https://www.fordbarn.com/forum/showthread.php?t=46583

07-23-2013, 01:45 PM	#11
VeryTangled Senior Member Join Date: May 2010 Location: (Not far enough...) Outside of DC Posts: 3,387	Re: 6 volt jumper cables? Here's a thread where it's hashed out. It starts a little slowly but picks up. https://www.fordbarn.com/forum/showth...=jump+starting Also Old Henry posted a thread, I couldn't find it easily, about a road trip he did this past winter in frigid temperatures. There's a great photo of his three posts from the end of the above thread showing a great way to do it. -VT/JeffH