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08-21-2018, 08:02 PM | #11 |
Getting Wild
Join Date: May 2018
Location: MB SC
Posts: 112
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Re: Melted battery terminal
Yes. It is a stainless lock washer. I figured since I couldn’t tighten the bolt again the obc, That I would need a lock washer to tighten the lug between the two nuts. I was thinking that without it, the outer nut would just spin off, especially if the cable jostled back and forth a little. I am definitely open to better solutions. Thanks
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08-21-2018, 08:23 PM | #12 |
Gone Wild
Join Date: Sep 2012
Location: Chestermere, Alberta - Canada
Posts: 1,146
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Re: Melted battery terminal
I use double nuts (like on the motor studs). Depending on how much those washers are compressed it strikes me that you may have inadvertently inserted a resistor (of sorts) into that cable.
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08-21-2018, 08:40 PM | #13 |
Gone Wild
Join Date: Apr 2017
Location: SE TN
Posts: 2,218
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Re: Melted battery terminal
It sure looks like a bad solder joint/cold solder joint to me. Whatever the case may be I would suggest getting a new set of cables before you wind up replacing more batteries.
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08-21-2018, 08:46 PM | #14 |
Gone Wild
Join Date: Jun 2011
Location: Northern Indiana
Posts: 2,813
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Re: Melted battery terminal
Just my 2 cents worth, but it looks like all the heat was generated at the lead terminal itself. In your pictures the lead appears to have melted and allowed the copper cable end to sink into the lead. While the heat shrink looks stretched, and the wire appears to have pulled back from full insertion, I don't see any melted insulation.
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08-21-2018, 08:55 PM | #15 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Melted battery terminal
The lugs are not the best size for Golf Cart batteries, the 3/8" lugs can move around the 5/16" battery studs and cause the nuts to get loose.
It must have got hot enough to melt the solder job on that termination. |
08-21-2018, 10:59 PM | #16 | |
Getting Wild
Join Date: May 2018
Location: Lavon, TX
Posts: 105
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Re: Melted battery terminal
Quote:
In this particular instance, it looks to me that the battery itself had an internal issue that was then compounded by a poor cable connection. JMHO |
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08-24-2018, 06:11 PM | #17 | |
Getting Wild
Join Date: May 2018
Location: MB SC
Posts: 112
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Re: Melted battery terminal
Quote:
I Ended up going to the local Trojan distributor and he gave me a new battery for less than retail and also a smoking deal on a pair of U1 35ah 12v batteries I’m going to run in parallel for my stereo. |
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