Quote:
Originally Posted by ol'George
Since the 1950s chemical additives have been used to reduce lead sulfate build up on plates and improve battery condition when added to the electrolyte of a vented lead–acid battery. Such treatments are rarely, if ever, effective.
Two compounds used for such purposes are Epsom salts and EDTA. Epsom salts reduces the internal resistance in a weak or damaged battery and may allow a small amount of extended life. EDTA can be used to dissolve the sulfate deposits of heavily discharged plates. However, the dissolved material is then no longer available to participate in the normal charge/discharge cycle, so a battery temporarily revived with EDTA should not be expected to have normal life expectancy. Residual EDTA in the lead–acid cell forms organic acids which will accelerate corrosion of the lead plates and internal connectors.
Active material changes physical form during discharge, resulting in plate growth, distortion of the active material, and shedding of active material. Once the active material has fallen out of the plates, it cannot be restored into position by any chemical treatment. Similarly, internal physical problems such as cracked plates, corroded connectors, or damaged separators cannot be restored chemically
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I agree I am still learning but I work for Deka as a Motive power service tech and have been to our plant in PA and we are the only manufacturer to do what is call tank formed plates which means we form the positive and negative plates of a battery in big tanks then we can see which plates do not take, because of this our batteries has less failure rates than any other manufacturer but in turn cost a little more.The worst thing to do to a battery is let it sit for an extended period of time the plates sulfate and once sulfated you can not really bring them back.