Probably range (batteries). That said, for my use I have not found range to be a problem.
Mark
Santa Cruz
--- In electricboats@yahoogroups.com, "dennis wolfe" <dwolfe@...> wrote:
>
> Off the shelf motor - controller - battery technology works fine for displacement hulls, especially sailboats that need the ballast weight anyway.
>
> I would say the lack of range and power are deal breakers for most people. A decent electric install is as expensive as a diesel with huge range and some speed trade-offs. The advantages of quiet instant-on propulsion are not sufficient benefits to offset the range-power-cost issues for most people.
>
>
> I really need your advice as I am studying the major market and technology problems with the whole electric boat industry......
>
> What do you consider to be the biggest problems with electric boats...either pre-built or retrofitted
>
> 1) Is it the motors themselves? what's wrong with Mars motors or other brands?
>
> 2) Is it the controlling circuitry that is most problematic? If so, what's the big issue?
>
> 3) Is it the charging circuitry? What could be done to better the charging methods?
>
> 4) Is it the batteries that is most problematic?
>
>
> Sincerely,
> Doug Hitchcock
>
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