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Joined: Nov 2008
Posts: 162 Likes: 1
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Nov 2008
Posts: 162 Likes: 1 |
I was looking through some items on eBay this morning and saw some 12 volt to 6 volt voltage reducers. Is it possible to jump star our 6 volt cars from a 12 volt source if there is a voltage reducer before our battery? The flow would be 12 volt battery to jumper cables, jumper cables to voltage reducer, voltage reducer to 6 volt battery. It may not work - just curious. Thanks for any insights you might have!
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
I have jumped dozens of 6 volt cars with a 12 volt jumper box with no problems. In fact it is a plus with the 12 volts because it spins over faster.
Cautions are make sure all lights aand radio are shut of and don't crank for ;ong periods of time and/or allow the starter to cool.
Gene Schneider
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Nov 2008
Posts: 162 Likes: 1
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Nov 2008
Posts: 162 Likes: 1 |
I had heard that you could damage the points pretty easily if you jump with 12 volts.? Is that just an "old wife's tale"?
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
yes, It will not damage the points any more than it would damage the points with a 12 volt system.
On a 12 volt car the points will get 12 volts during starting and when the starter button is released and the engine running the points get reduced voltage through a resistor or resistance wiiring.
Gene Schneider
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Joined: Feb 2008
Posts: 3,801 Likes: 1
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Feb 2008
Posts: 3,801 Likes: 1 |
I had heard that you could damage the points pretty easily if you jump with 12 volts.? Is that just an "old wife's tale"? As stated, have all lights, radio, heater off. Even with those precautions, I shorted out my fuel gauge. 
1951 Chevy Styleline Deluxe 2 door sedan / purchased from second owner 6-19-2000.
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