We love our Victron Lithium system (we are on a Catamaran). The only issue I have with it is that I was unable to find an external alternator regulator that floats at 13.5v, the best I could find floats at 13.3v so that's what we run at. I wish Victron made an external ve.bus controlled external alternator regulator, even better would be one unit that could manage two alternators.