I doubt the new PMBC will have PFC below that 75a rating. None of the other PM chargers do. That was all about the converter still being able to run on a 15a circuit. A non PFC 60amper can run on a 15a circuit. eg the PD 80amper needs a 20a circuit, which means 12wire instead of 14 etc.
I have lost track of the main objective here or it is changing :) IMO the thing to establish first here now is whether the mod-PM75 can charge a 50% SOC pair of batteries by doing 75 amp constant for longer than 15 minutes at the high voltage setting such as at 14.8.
Or find out what it will or won't do and if you can adjust it some more to get it to do what you want.
