Join Date: May 2005
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Re: One battery or two?
If this were me....I am going to swag that not much amperage is needed to start a 10HP out board, so reality says, if you do not want to hand pull start it, I would get a "U1"? size starting battery. Should have plenty of umph to get an outboard going. Its a larger lawn mower starting battery.
I would then have a 2nd house batter or just this one, that is in the size 24, 27 or 31 range. I had a 24, now a 31, either works for me, and I doubt I use much more ahr than you on my 28' boat. If I cruised more, vs daysail/race useage, then two getting me intot the 200-300 ahr range would be better.
Not sure frankly there is a right or wrong for how you are using the boat. be it one or two batteries frankly.
She drives me boat,
I drives me dinghy!