Battery Sulphation solution
I guess it all depends on whether the battery is really dead (shorted, loss of all material etc, etc) Or whether its just severly sulfated.
I don''t think anyone can argue that battery equalization for sulfated wet cell batteries can bring back the "ghost" of a battery when most people would chuck it due to the lack of apparent
There are quite a few people (and not just the manufacturers) that have done research on the "pulse Generators" and show results for *some* batteries and being able to get the most out of them, its like doing an equalization without the long term high voltage.
Here is a site, with hobbiest who do this sort of thing that discuss a lot about this.
And here is a Buletin Board with people discussing issues, efficacies, etc.
ps. 29cascadefixer its not a trickle charge, it more of a higher frequency high voltage spike generator