That reminded me that I have a possible solution to generator is off problem. PO had a 12V alternator mounted on the port engine. A nice, but unnecessary, redundancy to have full 12V with generator off since the generator is the only draw. When I found it needing a rebuild/replacement, I just took it off. Besides the generator battery, I've four more Grp 31 12V bats onboard. While not the ultimate in convenience, that's redundant enough for me. With 13 batteries onboard, I can make something jump.Any link to a 32 volt shurflow DC? I cant seem to find one. I have a 12 volt battery on the boat for the generator but if the generator is out it aint charging. If the generator is on I have my shallow well pump.