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post #8 of Old 09-05-2006
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Exactly right! Cycling a deep-cycle battery to only 30% discharge rather than 50% discharge on a regular basis can GREATLY extend the number of useful life much as 3 times!

That's one of the principal reasons it makes good sense to parallel your batteries into a large battery bank. This larger bank will be drawn down less (smaller percentage) from full charge than would a smaller bank, given the same load.

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