EDTA Restoring lead acid batteries
Not sure if you all are aware of EDTA (Ethyline-diamine-tetraacetic acid) this is the secret/magical/mystical ingrediant in battery restoring solutions.
http://cgi.ebay.com/EDTA-restores-le...d=p3286.c0.m14
For all of you out there in need of keeping your battery in good condition.
Here is some additional info:
Since the 1950’s 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 [11].
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.
Re: EDTA Restoring lead acid batteries
Quote:
Originally Posted by
nswst8
Not sure if you all are aware of EDTA (Ethyline-diamine-tetraacetic acid) this is the secret/magical/mystical ingrediant in battery restoring solutions.
http://cgi.ebay.com/EDTA-restores-le...d=p3286.c0.m14
For all of you out there in need of keeping your battery in good condition.
Here is some additional info:
Since the 1950’s 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 [11].
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.
it's the stuff people put in used batteries so they can sell them, then in a few weeks the batteries fail but the seller is long gone.
