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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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05-13-2012, 07:26 AM | #1 |
Not Yet Wild
Join Date: Aug 2011
Location: SE Texas
Posts: 43
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What hardware to use to connect batteries and contactors?
I have done some searching on this topic and I have not found my answer.
I have a 1991 EZGO that I am doing a complete re-build and I am now coming up on the part where I install the electrics. I am trying to determine what is the best hardware to use to make the connections to the batteries and other high amperage devices and I need some advice. If I use standard hardware store nuts and bolts, they will rust and or corrode over time. Copper would be great only I cannot find source for it. I had some problems (heat) with dissimilar metals when I tried to use stainless steel on an application some years ago. So my question is what types of nuts / bolts / washers come on these carts from the factory? What hardware would be ideal if you had the choice? Thanks in advance for any input. John |
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05-13-2012, 07:56 AM | #2 |
Gone Wild
Join Date: Apr 2012
Location: South Louisiana
Posts: 488
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Re: What hardware to use to connect batteries and contactors?
The threaded stud on the battery is steel...
If you could find copper nuts, you could probably replace your steel nuts and washers 4 times a year for life of your batteries for the cost of copper nuts. Just my thoughts. Good luck. |
05-13-2012, 09:22 AM | #3 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: What hardware to use to connect batteries and contactors?
I believe carts come from the factory with Lead battery posts, stainless steel studs & nuts and copper or tinned copper cables lugs.
As far as I know, no washers are used in any electrical connections on golf carts. The primary electrical connection on a cart battery is Lead to Copper and the stainless steel stud & nut holds the two together while providing a secondary current path. The stud is actually a hex-head bolt embedded in Lead, so the torque limit on the nut is about 10 ft-lb (80-120 in-lb is the Trojan battery spec) The acid laden air above the batteries corrodes both Lead and Copper, so a terminal protectorate is needed. I've been looking for a product that both protects and is conductive, but doesn't cost an arm and leg. Here is the thread:http://www.buggiesgonewild.com/elect...al-grease.html Loose and/or corroded battery connections will cause heat, in fact it has melted the terminals off batteries, but with a proper battery maintenance routine, it isn't an issue. |
05-14-2012, 10:39 AM | #4 |
Not Yet Wild
Join Date: Aug 2011
Location: SE Texas
Posts: 43
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Re: What hardware to use to connect batteries and contactors?
Thanks for the responses. I will be in an area tomorrow where I can get some SS hardware so I guess that is the route I will take. Thanks again. John
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