Re: batteries and switches
Optima batterys can not take the charging system of a outboard. Its ok for sterndrive and inboard use. There is normally more items on a 28ft vrs a 2ft. There a normally 3 large pumps, cabin lights some have a fridge that runs off of 12 volts along with all kinds of water system pumps. Thats the reason why I said for a 20 its overkill. I have a 20 cc and am running two batteries just to play safe.
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