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So this is a question I've trolled the internet looking for and have seen several different answers to. But I thought I'd reach out here as the advice I've been given has been working on my restoration project.

1989 Whaler 27 FC, dual 275 Verados. My thoughts have been to run an inverter/charger with a large battery bank instead of installing a genset. Since this is a full restoration I'm rewiring everything, using LED lights, quite a bit of electronics, small refrigerator and the largest draw would be a marine air conditioner. But I'm looking at the Webasto FCF5000 where the draw is as follows: Voltage:115 Running Current: 5.8A Starting Surge: 23.5A.

My setup would be a ProMariner 2500W inverter/charger, cranking batteries(2), and then 2-3 nice sized 4D or 8D batteries for the house bank.

The Verados have 70amp high output alternators. I don't know what makes them 'High Output' but that is what the Mercury part says.

My primary use for the Air Conditioner would be when I'm out fishing and need to cool down or possibly even an overnight trip. Other than that I would not be away from shore power for more than 1 day.

The reason I'm asking is that I don't want to plunk down $8k-$10k on a genset(installed) where I might be able to get away with electric power.

Any thoughts on this setup?