Hi Owen,
You may want to consider plain old wet-cell lead-acid batteries. A set of good golf car batteries (T105 or similar), if discharged to say 75% or 80% DOD every weekend, kept charged between use, and watered once or twice a year will last at least that long. You may notice some gradual reduction in range after 5 years or so, but they tend to fade slowly so you should have plenty of time to plan for replacement.
Jim McMillan
--- In electricboats@yahoogroups.com, "otyers" <otyers@...> wrote:
>
> For those of us that are lucky if we get out on the water 30-50 days in
> a year (a range of 150 - 350 discharge cycles over a 5-7 year period),
> what battery type would make the most sense? Also, any tips on where
> to source these batteries inexpensively?
>
> Thanks for any advice.
>
> Regards,
>
> Owen
>
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