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Re: Want device to pump debris out of shorted battery cell
bill, there have been batteries remedies out there since the two-cent comic books and Popular Mechanix had ads for miracle stuff in the back, that could restore your dead car batteries. And somehow, never did.
Whoever, whatever, you found, is advising you to play with strong acid. Bear in mind that the internet is not necessarily a nice place, there are folks who intentionally publish recipes for fireworks (pretty & fun) that will instead blow up as you compound them. Folks who literally are trying to make you hurt yourself.
And you don't know what kind of kind stranger, squirrel, or outright nutjob might be behind most of the advice you find.
You've never seen a battery shop selling "slightly used" or "restored" batteries, have you? Never seen a fixit shop (remember those?) selling fixed batteries, or a service station offering to fix yours for twenty bucks instead of selling you a new one?
I have friend who grew up transplanted to a chicken farm during the depression. When I said something about pennyfoolish during a repair he said "You know, that's your job. I spent too many years where we had to cut corners, and sometimes I need someone to remind me, I don't have to do that now and it is going to come back to bite me if I do. So when you see me doing that, remind me." (He had picked up some galvanized bolts to repair something on deck, because stainless was so much pricier, and not at the local hardware store.)
Which is not to say I don't kludge. I once terminally insulted a Volkwagen mechanic by using baling wire to fix a roomate's Beetle. I think the piece on the throttle cable didn't bother him but the piece replacing a circlip in the distributor really got him upset. It had been there for a couple of thousand miles before it went into the shop and he heard "AND VAT IS THIS?!" from out of the shop. Hey, he needed the car to run.
Messing around with battery acid, for a procedure that no "credentialled" source endorses, or even suggests?
Might be a way to get the Landrover out of the Gobi Desert before the water runs out, but is generally not a good idea. You are not in the Gobi!
You looked, you tried, you also DID find a lot of folks here warning you it will be ineffective to dangerous. Which could be a good find. :-)
Should batteries go dead in two years? Of course not. What that tells you is that you need to examine the battery monitoring/charging system as a whole, find out what killed them, and fix it. It is not uncommon for one bad component (alternator, regulator) to kill a battery, or a battery bank. And instead of 4-6 years, sure, they're toast in one. Stuff goes wrong, can't always be fixed after it has broken. Batteries? Humpty Dumpty sat on a wall. If you can't fix 'em by adding water and charging/equalizing, they're not going to get fixed.
Used a while longer, at a reduced capacity, maybe. But not fixed, and not worth messing with the acid, unless you are really comfortable with caustics and can empty out the entire battery and let it drain well before continuing. Gloves, googles, rubber apron--the works.
Last edited by hellosailor; 03-15-2013 at 11:53 AM.