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Old 04-18-2026, 07:44 PM   #8
Kube
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Join Date: May 2010
Location: Wisconsin, USA
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Default Re: battery disconnect switch

Quote:
Originally Posted by paul2748 View Post
Some controversy on what pole to put a disconnect on. Most advise to put it on the ground side (in your case the positive if an 6V car). Without a ground, as you may know, nothing electrical will work.


That said, I have always worked with 12V negative ground cars so maybe a 6V positive ground car may be different.
Think of your home... if wired properly, the lamp switches interrupt the "hot side". If the common side is interrupted, there can still be feed through. Much safer to interrupt the power supply.
A car is not much different, ya want to interrupt the "hot side". In the case of a stock '47 Ford, the "hot side" is the negative post.
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