dc to dc converter?

[PROFG]

Thank you Bob / Bruce, I do feel welcome.  My reference to off forum was to point out that I would not have known about my gaff without rereading previous posts (which I often do anyway) or having it pointed out .  The "rectifiers" are on the way as I think that is quickest way I can get bulk charge into my 2x48v banks - present charger is one 48v gulf cart type rated 17 A max which I never see because never allow SOC to go really low. Have tested the 5 rack mount 1.5Kw inverters with Dranetz and they do transfer bumpless since inverter runs full time charging battery if line power available (double conversion).  Plan on stacking 2 or 4 for 240vac deep well pump until I can find reliable 48vdc one.  Like to go play with the Yanmar now.