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What causes batt post build up like this? (see pic) 200 1980

posted by  Farm Boy on  Tue Dec 2 11:56 CST 2008
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last visit: Mon Oct 28 07:35 CST 2013
[RELATED]

The battery is defective or was damaged when it was handled/installed.

There are seals around the posts where they pass through the case. If you pick up a new battery by the posts, or if you twist a post when tightening the clamp with a wrench, you will damage that seal and cause liquid acid and vapor to leak out around the post, corroding the clamp as you see here.

The best thing you can do now is to put on No-Co pads between the clamps and battery case, and/or seal the clamps using No-Co spray.

30 years ago, I used to use No-Co spray to seal the clamps on every battery I worked on, but I find that if everyone who handles the battery treats it with care, there is no need for No-Co.

As for cleaning it, Coke works, but bicarbonate of soda and water is a lot less sticky, and does not attract flies.






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