Hi Larry; I concur with your analysis. However I frequently see electric desulphators being sold / installed / recommended as a matter of course on brand new battery banks. I think this is what the Trojan tech rep was getting at.
-- Dan Fink, Executive Director; Otherpower Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC accredited Continuing Education Providers 970.672.4342 (voicemail) On Fri, Apr 27, 2012 at 10:40 AM, Larry Crutcher, Starlight Solar Power Systems <[email protected]> wrote: > Hi Dan, > > When you think about it, a battery will not be under warranty and need a > desulfator at the same time. Here's why: All battery manufacturers state > that the warranty is void if a battery is has not been charged properly. > Here is the Trojan pertinent warranty text: THE PROVISIONS OF THIS LIMITED > WARRANTY SHALL NOT APPLY TO FAILURE DUE TO: .... Abuse or neglect.... > insufficient charging (undercharging or overcharging). > > Lead sulfate is an amorphous powder. When there is no charge current > flowing, lead dioxide, lead and sulfuric acid react and make lead sulfate > on the positive plate. When a battery is properly and fully charged (key > words), including equalization charges, all of the lead sulfate is > converted back to sulphuric acid, lead dioxide and lead. > > It takes many months of deficit charging for the lead sulfate to harden to > the point that proper voltage, current and time (more key words) can not > convert it back. This is the point in a batteries life where a desulfator > might be of use; to break down the crystalline structure formed due to the > neglect. So, there is not a need for a desulfator circuit if the battery > is healthy and being charged properly. If you do need a desulfator, it will > always be due to causes that make the warranty void. > > Larry Crutcher > Starlight Solar Power Systems > >
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