aln

George,
52 amp hours/c20= 2.6 amps for 20 hours. That is the safe discharge rate. You are pulling 7.5 amps for 2 hours. 7.5*2= actual capacity, 14Ah. You will get more amps out of your battery if you decrease the draw. Your "smart charger" is smart on the part of the battery companies. They will sell you a new one in a couple years if you discharge a regular lead acid to 9v repeatedly. Aln

Guy,
George's battery is no longer a typical lead acid battery. My alum batteries flatline between 7-10 volts. How big of a battery did you convert Geroge? 2*45=90 watts/12v= 7.5 amps of discharge (that is a heavy load) for 1.5 hours then it drops off. rule of thumb, c20 discharge rate is ah/20, much nicer to battery. Al

A converted battery will desulfate some if the solution has room for the sulfate ions. Bad cells will still be bad cells, unless you can remove deposits of pbso4 from between the plates whe you are rinsing the plates off for conversion. Aln

George,
Hi there, welcome to the thread. I only have experience with aluminum ammonium sulfate so I can only speak to that as far as ratios and what to expect. From my experience, however, I do not believe super saturation is the key to getting more amp hours out of a well-used-somewhat-sulfated-battery. By saying "super saturation" I mean heating up your distilled water to absorb as much chemical as possible. What I believe I ran into was the solution cools in battery and during discharge and charge cycles is becomes difficult for the sulfate ions of an already sulfated battery to move into the "super saturated" solution. Just something to ponder during your experiments. Enjoy, Al