yea, my battery charger I use also has a built in desulfater. The problem is, its an automatic cycle. So it can go into desulfate mode when the charger detects that the battery won't take a charge. I wouldn't mind a desulfator like the one he sells but $50 is steep.
"Opportunity knocks once" Not true... In some cases it never comes knocking, you have to go out and grab it by the hippie pony tail, and drag it over to your place for wine and chocolate."