Battery connections.

simple man · 10-19-2011, 04:13 PM

Roady just put up a thread about " Odyssey batteries " and it got me to thinking, is there any reason why you couldn't use brass nuts on your battery connections? I would think they would be more conductive and more corrosion resistant than the steel ones! What's everyone's thought on this?

Coltf1991 · 10-19-2011, 05:04 PM

I dont see why it wouldn't work. Actually sounds like a good idea.

Andy4639 · 10-19-2011, 08:06 PM

Don't see any reason for it. The juice is going through the cable and stud not the nut. Don't see anything wrong with it, but what good does it do for the system?

scottyb · 10-19-2011, 08:26 PM

I think the nuts would be too soft and corrode easier than regular steel. I like a stainless nut for this application. The nut holds the cable down on the post base which is where the connection to the cable is made..... so the nut doesn't need to be conducting amperage flow... so much as just holding the cable to the battery solid.

dougmcp · 10-19-2011, 10:59 PM

I agree with Scotty, stainless would be my choice.
To avoid any galvanic corrosion the nuts should be as close as possible in properties as the post. The further they are apart on the galvanic chart the more corrosion you will get and it's even worse when the surfaces are wet.
You already have dissimilar metals in the post (lead/stainless steel) so one of these would be best to stick with and lead is too soft so stainless steel is the obvious choice.
Here is a copy of the galvanic chart for comparison:

simple man · 10-20-2011, 08:34 AM

Excellent chart Doug! It makes sense to me. I'll get stainless nuts! I thought because the terminal ends are copper, brass would be better. I didn't even give the battery post a thought. You guys have me on the right path again! Thanks all!

hitmanharleyk · 10-20-2011, 08:50 PM

You can get standard and heavy stainless hex nuts. I prefer the heavy which requires a 9/16" wrench instead of the 1/2" for the standard size.

ab46501 · 10-21-2011, 10:06 AM

I use stainless nuts on mine and they work well. You can get them at Lowes or Home Depot.

simple man · 10-21-2011, 11:30 AM

Quote:

Originally Posted by hitmanharleyk

You can get standard and heavy stainless hex nuts. I prefer the heavy which requires a 9/16" wrench instead of the 1/2" for the standard size.

I have seen those on marine batteries. Seems like it would give it more surface area on the cable connector!

10-19-2011, 04:13 PM	#1
simple man Gone Wild Join Date: Aug 2011 Location: Bunnell, Florida Posts: 2,408	Battery connections. Roady just put up a thread about " Odyssey batteries " and it got me to thinking, is there any reason why you couldn't use brass nuts on your battery connections? I would think they would be more conductive and more corrosion resistant than the steel ones! What's everyone's thought on this?

10-19-2011, 05:04 PM	#2
Coltf1991 Gone Wild Join Date: Jul 2011 Location: Houston, TX Posts: 2,901	Re: Battery connections. I dont see why it wouldn't work. Actually sounds like a good idea.

10-19-2011, 08:06 PM	#3
Andy4639 48/400/Alltrax HS motor Join Date: Jan 2007 Location: Liberty SC, Garden City SC Posts: 6,190	Re: Battery connections. Don't see any reason for it. The juice is going through the cable and stud not the nut. Don't see anything wrong with it, but what good does it do for the system?

10-19-2011, 08:26 PM	#4
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,399	Re: Battery connections. I think the nuts would be too soft and corrode easier than regular steel. I like a stainless nut for this application. The nut holds the cable down on the post base which is where the connection to the cable is made..... so the nut doesn't need to be conducting amperage flow... so much as just holding the cable to the battery solid.

10-19-2011, 10:59 PM	#5
dougmcp Gone Wild Join Date: Mar 2009 Location: Roseville, CA Posts: 2,757	Re: Battery connections. I agree with Scotty, stainless would be my choice. To avoid any galvanic corrosion the nuts should be as close as possible in properties as the post. The further they are apart on the galvanic chart the more corrosion you will get and it's even worse when the surfaces are wet. You already have dissimilar metals in the post (lead/stainless steel) so one of these would be best to stick with and lead is too soft so stainless steel is the obvious choice. Here is a copy of the galvanic chart for comparison:

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10-20-2011, 08:34 AM	#6
simple man Gone Wild Join Date: Aug 2011 Location: Bunnell, Florida Posts: 2,408	Re: Battery connections. Excellent chart Doug! It makes sense to me. I'll get stainless nuts! I thought because the terminal ends are copper, brass would be better. I didn't even give the battery post a thought. You guys have me on the right path again! Thanks all!

10-20-2011, 08:50 PM	#7
hitmanharleyk Gone Wild Join Date: Oct 2008 Location: Southwest Georgia Posts: 610	Re: Battery connections. You can get standard and heavy stainless hex nuts. I prefer the heavy which requires a 9/16" wrench instead of the 1/2" for the standard size.

10-21-2011, 10:06 AM	#8
ab46501 Gone Wild Join Date: Sep 2010 Location: Olive Branch, MS Posts: 313	Re: Battery connections. I use stainless nuts on mine and they work well. You can get them at Lowes or Home Depot.

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