Pulsetech PowerPulse 12-Volt Battery Maintenance System, Black

I have 4 six volt batteries hooked up in series and parralel to make 12 volt system? will this work to desulfate all 4 batteries? can I keep it connec

Does this work with a hybrid engine system using an AGM battery and leaving it connected while using the car normally?

Can i use this on 3 agm deep charge batteries wired in series? also is it ok to hook this up while also using a battery charger/tender?

Is the desulfation as good as or better than that of the BatteryMinder 1500/1510?