battery corrosion - JeepForum.com

 
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post #1 of 11 Old 09-02-2008, 02:53 PM Thread Starter
chrisstromberg
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battery corrosion

I have a constant problem with corrosion on the negative terminal of my battery. Every month I clean powdery, white corrosion off with terminal cleaner. If I don't do it soon enough then the electrical system goes crazy.

I am 90% sure that the problem is cause by a crack in the battery just next to the terminal. I caused the inch long crack while trying to remove the cable from the post once. I imagine that battery fumes are coming through the crack and causing the corrosion.

I know that eventually I will need to get a new battery because of this, but I'm a poor college kid, so i'm putting it off as long as possible. Can I just put some duct tape or something over the crack to prevent corrosion? JB Weld, maybe?

Thanks.

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post #2 of 11 Old 09-02-2008, 03:16 PM
steelstr45
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they sell little felt rings that you put on the battery terminals under the cable. They help prevent corrosion. Also, you can buy an anti-corrosion spray that you spray on the terminals.

Between the two, you shouldn't have any corrosion problems, even with a crack.
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post #3 of 11 Old 09-02-2008, 04:06 PM Thread Starter
chrisstromberg
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I had a felt ring on the battery terminal, but it actually became degraded and fell apart. I'll have to pick up another and also find some anti-corrosion spray. Can I get that at Autozone?
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post #4 of 11 Old 09-02-2008, 04:56 PM
steelstr45
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I'm pretty sure every auto parts store carries it. It's called "battery terminal protection spray". Or something similar.
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post #5 of 11 Old 09-02-2008, 06:06 PM
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farmers use grease
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post #6 of 11 Old 09-02-2008, 07:02 PM
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Quote:
Originally Posted by Katesdad View Post
farmers use grease
i usually use vaseline and a felt ring.

this thread seems like it could get a bit raunchy at this rate.....


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post #7 of 11 Old 09-02-2008, 07:13 PM
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Try using the felt rings as those above have suggested. They also sell a sealant at most auto stores, maybe even Wally world might have it. Comes in a small aerosol can which you spray on the terminals that seals the connection so corrosion can't form. I use both the felt rings and the sealant and I never have any corrosion. Prior to that, I always had corrosion on the terminal posts.

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post #8 of 11 Old 09-02-2008, 07:27 PM
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I superglued a couple of pennies between the terminals. The corrosion is attracted to the copper of the pennies, and it worked for a while to keep my terminals pretty clean.

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post #9 of 11 Old 09-03-2008, 08:01 AM
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Use an older penny for more copper. (pre-1982 I believe) There's not enough copper in them now to make it work well.

I had a crack in my battery like you describe. It wasn't long before the cell under that crack got low on acid and the cell causing the battery to fail and not hold charge. I could even see where little drips were surounding the crack and attracting road dust.

As sensitive as these rigs are to weak batteries, keep some cables handy along with about $70 and a set of sockets and extension (for the batt. hold-down bracket) to replace yours when time comes. (Typical SOP for a Jeep, right?)

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post #10 of 11 Old 09-03-2008, 09:59 AM
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i bet if you are corroding constantly that you have some cracks aorund the terminal. At least mine did. Take it off and wash everything really well with baking soda water and then rinse and tehn inspect the top of the batter for cracks around the post. They will let sulfuric acid fumes escape and corrde things really fast.

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post #11 of 11 Old 09-03-2008, 12:38 PM
Redbob
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Quote:
Originally Posted by chrisstromberg View Post
I have a constant problem with corrosion on the negative terminal of my battery. Every month I clean powdery, white corrosion off with terminal cleaner. If I don't do it soon enough then the electrical system goes crazy.

I am 90% sure that the problem is cause by a crack in the battery just next to the terminal. I caused the inch long crack while trying to remove the cable from the post once. I imagine that battery fumes are coming through the crack and causing the corrosion.

I know that eventually I will need to get a new battery because of this, but I'm a poor college kid, so i'm putting it off as long as possible. Can I just put some duct tape or something over the crack to prevent corrosion? JB Weld, maybe?

Thanks.
I think most every other poster missed the part about the crack in the battery.
Seal it up with RTV and you should be good to go.
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