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I think I jinxed it. During Christmas, I was remarking to my dad how much I love my battery (original) in my 2002 620 Dark. Every year, it starts right up, and that's even with one season of it sitting in the garage off the charger (2 years ago) here in the Chicago area.

So today, I go for the final (chilly) ride to mix up the Stabil in the tank and pull the battery, and after the ride battery needs a tug to get out. I look down, and there's moisture, and the two large, rounded bolts holding the battery cage in place have that funny, chalky efflorecence-like stuff on them.

I wipe down the battery, and it looks like maybe acid crept out of the two tiny machined holes in it. I don't see any cracks or other ovious exit points for acid.

So my fellow DMLers, is my battery toast? Should I even bother throwing it on the Baterry Tender, or should I just buy a new one next season?

And does anyone know how to get the battery grime of of metal? I used a damp shop rag and a flathead screwdriver but it only got like half of it off.

Thanks in advance and I hope everyone who celebrated had a Merry Christmas!
 

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Sounds like a leaking battery and you don`t want that, for sure.
If it`s fours years old, time for a change anyway.
Battery acid has to be mechanically removed, no rags nor fluids help.
And the sooner the better, eats into everything!
 

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You can neutralize the acid with a slurry of baking soda and water, the staining you're pretty much stuck with unless you paint or polish.
 

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You can neutralize the acid with a slurry of baking soda and water
Is that when the acid is still wet on the surface or what?
 

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I just replaced the original battery from my 2002 S4. (@30,000 kms trouble free starting etc)

Unfortunately a little bit late cos it had leaked.

Clean up is a piss off but I am getting there slowly.

Check your batteries folks.
 

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Surprised yours lasted that long, Shooter, mine puked 5 months in...

Baking soda slurry will help stop further damage.
 

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Anywhere battery acid has gotten onto steel after you clean it it will rust the bejesus out of it. Clean very well and paint or replace.
 

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Desmo Stu said:
Go dry cell.....

Odyssey PC680

http://www.odysseyfactory.com/product_list.htm

Maybe if you hurry, you can still ask Santa for one! [thumbsup]
We are using the new Odysey 310 (6 lbs) for most bikes and the YTZ7S (4.5) for bikes that are left on Battery Tenders. or maintainers. Both are dry cell and will not cause acid damage.

http://tinyurl.com/ss5qy

http://tinyurl.com/ycr4db

On lead acid batteries, we wrap the batteries with the Thermotec Battery Heat/Acid barrier kit to protect the battery from excessive heat and to absorb any excess battery acid.

http://tinyurl.com/y36r2t
 

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greenmonster said:
If it`s fours years old, time for a change anyway.
+1

I always figure 3 years is typical for a lead acid battery in a car or bike, 4 years is good, 5 years is exceptional even for top quality batteries (though I did have a Honda OEM Yuasa battery last nearly 8 years once).

The other thing to keep in mind is that the acid leak isn't necessarily caused by an old battery - I'd be keeping a close eye on things for a while after you put a new battery in on the off chance that the acid leak (and dead battery) were a symptom of a charging circuit problem.

big
 
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