i think it works.
i put that stuff from jc whitney in every battery i have.
december it will be 11 years.
even in the new stuff that's the first thing that goes in.
but:
i just got a bad battery in one of the older cars.
it got a shorted cell.
so out of 20 walmat cheepys, 4 quads, 4 motor cycles and 6 cars, van and trucks batteries that's not to bad.
and i don't desulawatchmacallit but my controler is probly set a lil high.
this isn't a controled scientific test so i could be lucky.
here in december we'er getting 2 new quads.
i think i'll have one with and one with out.
we'll see what happens.
i called poison control and thay said it was cadmium sulfide.
i have seen dead bettteries come back to life with out charging and are still in use today.
so that's what's going on here.