Join Date: Dec 2006
Location: Chico, CA
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I went the large alternator with 500 amps of house bank, inverter, Link monitor and battery combiner. We have about the same equipment on board. We cruise on and off, longest single run 9 months and the rest of the time bay sailing with the boat in a slip on shore power. While cruising, it is rare that we used less than 150+ amps in a day so we charge pretty much daily to stay in 80-50 discharge profile. I chose AGM because the lay on their sides in the bilges and they take the large 220 amp output of the alternator at a faster rate than do flooded or gels.
If we were cruising more permanently, I would add some solar panels.
Just an example of real world amp use.