Join Date: Jun 2006
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Labatt, have you thought of breaking up your battery banks a bit? Echo-charge a starter battery in the engine bay and echo-charge a windlass battery in the anchor locker. Would this affect your "amp count"?
Conversely, you could consider the 200 Ah AGM 8D that are only 5" wide (used in UPS batteries in phone exchanges and server farms). These could be lying on their sides under the floorboards in many boats.
BTW, I agree with your math. I have one kid and likely fewer calls on electricity than on your boat and I am planning for a four 8D or equivalent house bank of circa 840 Ah. My goal is longevity: I want to run the boat on the hook for a week or on passage even if the wind is light or the skies are cloudy. I only want alternator amps as a byproduct of actual motoring, which we would likely do to pump the holding tank once a week out beyond the reef, so to speak.
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