Rick,
When people ask my opinion of almost anything about what is the best answer, I typically answer "It depends."
One must remember that we've all got different priorities when picking battery types. Another advantage to LiFePO4 batteries is that they are half the volume and 40% the weight of wet cells or AGM for the same rated capacity. In the case of the converted trimaran that has been discussed on this board, the weight savings are well worth the 40% premium in cost over quality AGM alternatives. And with a lifespan of more than 2000 80% DOD cycles, they are could be considerably cheaper per mile. Of course, if one has the room and extra payload capacity, AGMs are often a good answer.
Fair winds,
Eric
Marina del Rey
--- In electricboats@
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> To Date: there is no superior battery for this application other than AGM type. The variable of lifespan vs. initial cost far out guns all others. YES...even lithium based.
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