Engine and prop too small? in Fix It Anarchy Posted November 10, 2019 Right now it's a stock alternator, which is I think 35A maximum, a larger alternator would be nice as there is no shore power available, but 100A is probably overkill, at the moment I just have a start and a house battery, nothing fancy. Underway, loads shouldn't be silly, chartplotter, VHF, sometimes autopilot. I typically just head out for a few hours, but we get some serious currents, bouncy stuff and winds can pick up quickly. It is a very unforgiving shoreline too, all landings are hard and very pointy, so having grunt to power off a lee shore in 25+kts is a nice thing to have in the back pocket in case my seamanship lets me down.