| Peter,
I have 2 banks of 4 100A AGM batteries for my 48v motor. I only use one at a time for motoring leaving 1 in reserve for any emergency full-power situation. I can motor full power for 45 minutes on one bank or putter along at 3.8 knots using 18A/hour. My record use at one time is 17 hours at 18A with a Honda 2000i generator plugged into my 18A battery charger. I also have a 200watt 48v solar panel that can recharge a bank after 2 sunny days on anchor.
My feeling is after all it is a sailboat!
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Merrick
Diesel Free since '07
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