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Smallest starting battery?
I have a two bank battery system with two Group 27 105ah deep cycle flooded batteries on the house bank and an isolated Group 27 105ah as a reserve "get home". I figured it was nice to have the extra ah. A regular high cranking battery is slightly smaller, but doesn't weigh much less. The batteries are a considerable amount of weight on my Islander 28.
But I hardly ever use the starting battery. And rarely get half way down the house two battery bank.
I was thinking about lightening up the boat by getting rid of the starting battery, or replacing it with a smaller battery, or even a small emergency portable power source.
I'm wondering what others are using for a starting batteries or a "get home" plan. Yes, there are expensive lithium options, etc out there, but not really worth it for a weekend cruiser.
TIA,
Jack
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