I have an old Autohelm 1000 for my Pearson 30. I can sail about 10 hours (80% under autohelm) anchor overnight with my 12 VDC cold plate running, cabin lights and anchor light all night (incadecent bulbs) and make the return trip the next day and have plenty of juice left over. I have 2 group 24 wet cell batteries for my house bank. The only time my engine runs is leaving the dock, dropping and hauling the anchor, and returning to dock. In total about 45 minutes for the trip. I do start off with a full charge.
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