:) Ninerbikes my crack about chickens was meant to finish conveying my feelings on this thread about PWM chargers (i.e. smart chargers) and pulse charge de-sulfation.
They don't work. Take T-105's with cell readings of say 1.250, 1.260, 1.235, 1.270, 1.255. 1.230 after thoroughly charging them. Connect a whizz-bang super-smart solid state charger and grab a calendar.
There has been enough written in this forum about the inexpensive Harbor Freight manual 10-amp charger that I hoped you had read about it. I assumed you had.
Go to a gigantic battery battery manufacturing plant. One that has a hundred thousand dollar line charger. What kind of charger is it? It is a series charger designed to run constant amperage through the batteries. If there is a problem in the greening stage of manufacturing, it is resolved (hopefully) by a constant current charge.
Is there a completely manual or adjustable PWM charger? I don't think so. The public has been brainwashed to the point where they won't buy a charger unless it sports some miracle type Ponce de Leon cycle that suposedly would jump start Frankenstein.
This all is no reflection on you. My sarcasm is directed solely at companies that spend eight dollars on a plastic case and two bucks on what's inside then claim it'll do "anything".