Electrical/Lighting/Alarm Having electrical problems? Discussion on everything electrical and lighting systems.

Fried Negative Battery Terminal

Thread Tools
 
Search this Thread
 
Old Dec 6, 2015 | 04:17 AM
  #1  
USAFANGWINGNUT67's Avatar
USAFANGWINGNUT67
Thread Starter
|
Tourer
Joined: Nov 2014
Posts: 356
Likes: 2
From: Maine
Default Fried Negative Battery Terminal

Anybody ever has a negative battery terminal cable come loose and ruin the battery? This happened on my 2012 1200C Sportster.
 
Attached Thumbnails Fried Negative Battery Terminal-fried-battery.jpg  
Reply
Old Dec 6, 2015 | 12:56 PM
  #2  
Shanebo's Avatar
Shanebo
Road Captain
Joined: May 2014
Posts: 610
Likes: 62
From: White Bear Lake, MN
Default

Thanks for the pic.

I have a friend who has a cracked piece on one of his battery posts, just like how yours broke off.

I just sent the link to him, perhaps your trouble will help someone else avoid the same thing.

Thanks,

Shane
 
Reply
Old Dec 6, 2015 | 02:34 PM
  #3  
turnerbend's Avatar
turnerbend
Road Captain
Joined: Apr 2011
Posts: 551
Likes: 17
From: japan
Default

Good idea is to check battery cables for tightness ever 3 months. The Harley engine shake and vibration will cause the cables to get loose.
 
Reply
Old Dec 7, 2015 | 06:50 PM
  #4  
t100rc's Avatar
t100rc
Cruiser
Joined: Jun 2015
Posts: 164
Likes: 1
From: NoVA
Default

On a rubber-mount Sportster, move the negative cable to the lug on the back of the primary ... That way, you can firmly tighten the negative terminal on the battery before sliding the battery into the tray ... then connect the pos terminal. I'm convinced that it was supposed to be this way ... I can't for the life of me figure out why it isn't from the MoCo. I've made this change to dozens of RM sportster with, including my wife's ...
Harley starters draw ****-tons of current ... Loose terminals will absolutely cook right off of the battery (as you now know) if they're not tight.
 
Reply
Old Dec 7, 2015 | 08:03 PM
  #5  
USAFANGWINGNUT67's Avatar
USAFANGWINGNUT67
Thread Starter
|
Tourer
Joined: Nov 2014
Posts: 356
Likes: 2
From: Maine
Default

Originally Posted by t100rc
On a rubber-mount Sportster, move the negative cable to the lug on the back of the primary ... That way, you can firmly tighten the negative terminal on the battery before sliding the battery into the tray ... then connect the pos terminal. I'm convinced that it was supposed to be this way ... I can't for the life of me figure out why it isn't from the MoCo. I've made this change to dozens of RM sportster with, including my wife's ...
Harley starters draw ****-tons of current ... Loose terminals will absolutely cook right off of the battery (as you now know) if they're not tight.
Many thanks.
Makes one wonder why the MoCo turns a deaf ear to suggestions such as yours.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BSilver
General Topics/Tech Tips
6
Jul 14, 2017 07:27 AM
Hs Fatbob
General Harley Davidson Chat
11
Apr 2, 2013 09:25 PM
joedown53
Sportster Models
3
Feb 25, 2013 02:05 PM
rider1984
Sportster Models
3
Jul 6, 2009 09:10 PM
Johnny
Ignition/Tuner/ECM/Fuel Injection
3
Jan 26, 2005 11:13 PM




All times are GMT -5. The time now is 02:41 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE