Thanks for the credit guys, but the circut that is 120 volt ac line connected is not mine.
However thats the circut I use with the microwave transformers. I take 2 microwave trannsformers tear them apart put them back together with just the 2 primary windings. This makes for a very good, very cheap isolation transformer.
I didn't like the idea of connecting the desulphator directly the the ac mains (shock hazard you know).
The circut with the photo couplers, large cap and 30 volt power supply is mine. However its not as good as the simple cap, bridge 120 vac unit.
I've been using the ac, cap pulse charger on me EV truck 3 years now. My current batteries have 2 years time now with the pulse charger on them fulltime.
The SG is high the electrolite is clear aand the plates are one black and one gray.
Speaking of the RE truck 2 days ago I took a 25 mile round trip in the E-truck.
When I got home I still had plenty of power left.
As far as using solar panels for desulphating/pulse chargin. The circut with the opto couplers and 555 timer would be the best.
The steady state DC from the pannels won't have a pulse for charging.
JK TAS Jerry