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Solution for cleaning aged battery plates

Used to be a person could buy a solution that cleaned corrosion and build up from the plates of older batteries. Essentially it would allow you to refill the battery with fresh acid and have a restored/refreshed battery. Is anyone aware of what the solution was or if it's still available. I've got a couple old batteries I like to experiment on.
TIA
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Old 02-14-2006, 07:21 AM
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http://www.batterylifeplus.com/additives.html

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Old 02-14-2006, 10:05 AM
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I think I tried this stuff years ago and it did nothing.

There are pulsing chargers that supposedly clean the plates and prevent build up as well. However, I was under the impression that the plates are consumed to some degree over time and are also subject to fusing as well. These conditions would render the battery useless.
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Last edited by RickM; 02-14-2006 at 11:07 AM..
Old 02-14-2006, 10:14 AM
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Lead acid batteries gradually oxidize the lead to lead sulfate, which can precipitate to the bottom of the battery, but more likely deposits on the surface of the lead plates as crystals. This process is called sulfation. When the surface of the plates is coated with lead sulfate, or when the plates are gone, the battery is dead. The process of making electricity also consumes the lead.

If you have a 6 month old battery that was killed because someone put baking soda in it, then it can be regenerated by rinsing out and adding fresh acid. However, this creates an environmental issue and can be dangerous. If you have a 48 month battery that is 40 months old, adding more acid will give a short burst of power as the greater concentration of acid can "push" the reaction, but if the battery is worn out you just accelerate its demise as the plates are thinner. If the battery is badly sulfated, adding acid will do nothing.

Sulfation is accelerated by low electrolyte, sitting a long time, keeping a low charge, etc. If you have a fairly new battery that is not holding a charge well, you can take to a shop that will "pulse charge" it. Some people believe that this will remove lead sulfate crystals from the plate surfaces.

Your best bet is to replace the battery with a gel battery. This type of battery does not sulfate as easily as standard lead-acid batteries, does not vent hydrogen gas, and is more likely to last it's lifetime.

FYI, I think the practice of adding acid to the batteries originated in the '50's, when distilled water was not widely available. The carbonate salts in tap water would gradually neutralize the acid in the electrolyte, reducing the amount of current that could be generated. If you have always put distilled water in your battery, then it is most likely that adding an acid will do nothing.

Here is a good link for battery info: http://www.batterystuff.com/tutorial_battery.html
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Last edited by wholberg; 02-14-2006 at 11:05 AM..
Old 02-14-2006, 11:03 AM
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Excellent
Thanks
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Old 02-14-2006, 11:10 AM
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Kevin,
I have used EDTA to prolong battery life, not sure of it's benefit in bring one back to life.
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Old 02-14-2006, 11:25 AM
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Kevin,
I have used EDTA to prolong battery life, not sure of it's benefit in bring one back to life.
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HB Kramer
(4 sneaks and 6 airheads): 79 911SC Coupe (sunroof delete)
(2 sneaks and 2 airheads): BMWS: R12GS(a) R90S, and some old British iron as well.
Old 02-14-2006, 11:31 AM
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Old 02-14-2006, 11:31 AM
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