My boat is on a mooring. 20 minute engine run to get off the river and start sailing. I live 100 miles from the boat, so it is hard to get to it for winter charging. Considering that I am going to be abusing the batteries, I think I will go with a dual purposes relatively inexpensive batteries.
Will eventually get a solar system to maintain the batteries, and at that point, expensive batteries will be more rational. Right now, I think I would be throwing away money since I will not be able to do a good job of keeping them up.
Any thoughts?