On 2015-06-01, Tom wrote:

My question is about de-sulfating. I bought the one for $20.00 bucks that
connects and blinks the red light while it is desulfating with an electronic
pulse (reverse) and while I did this for about 2 months now on the
batteries, one shows very very good response but one still only holds the
12v charge for a week then goes down to 10v.

What I want to try is replacing the sulfuric acid. I think that could super

Look at this link and notice on first page (2nd column, right) where it
talks about dendrites and then later the part about reconditioning. The
de-sulphanation can work but there is a point of damage where it will not.
My guess (purely a guess) is that you will have to replace the battery
showing 10v. You probably have too much damage in one cell with deposits on
the positive plate and the above mentioned dendrites through the porus plate
separators. This can all be rather confusing, but maybe anything is worth a
try. ha Here is link:

http://www1.electusdistribution.com....ded/nicads.pdf

....Edwin
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