I just came across your posting regarding available DC gensets. Two years ago I pulled the old 10KW*genny from my trawler and in its place installed four 8D batteries. Northstar has an Outback 2kw inverter/charger to service my boat's*AC loads.
When I went shopping for a marine*DC genset, everything I looked at cost*as much or more than brand*name AC gensets (More than I want to spend for*equipment that will only use*occasionally.)*Last summer I used*a Honda 2000*inverter/generator as my charging source, but my boat's*charger required over 12A to run and caused the little*Honda to run*full bore just*to keep up with the demand! (NOT "Super Quiet"*and a gas hog!) This season I will try something new: I found a portable 12V DC Honda powered charger made by ALTEN --*they make them in 55, 80, 120*Amp chargers and sell for around $1300 (originally made for in Australia for the "off grid" crowd). I expect this engine driven*charger will produce the amps I require*at lower rpms than the Honda inverter genertor.*This make it a quieter machine and hopefully,*shorten the*overall charge time...but that would be a plus. You can check them out at www.alten-dc.com