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Old 10-20-2011
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Depending on supplemental charging from solar cannot be relied on. The continuous draw of 250 watts - about 20 amps - will require a battery bank larger than 1500 AH. 2000 AH is closer but even that may not be enough. I hope the boat is large enough to carry over 1200 lbs of batteries. Not to mention the expense. A generator is a much better solution, combined with a charger.
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