Mark,
You've posted these results before and the impressive part is that you pulled 140Ah (20A x 7hrs) out of 100Ah batteries and had some left over. While I am not discounting your accomplishment, I would not recommend that other people count on getting the same results from the same setup. If you share the specific brand and model of battery that you are using, then more people here can take advantage of these under-rated batteries.
Fair winds,
Eric
--- In electricboats@yahoogroups.com, "acsarfkram" <acsarfkram@...> wrote:
>
> Hi Glenn,
>
> With my Ericson 27, (7000lbs before batteries) I have motored for 7 hrs at a draw of 20 amps....
>
> During that trip I used only one of the two 48 volt 100 amp hr banks that I have....
>
> I understand the theory dictates lower run times but I would be interested in what people are getting in real life.
>
> Mark
> Santa Cruz
>
> >
> > --- In electricboats@yahoogroups.com, "Glenn Dennis" <vega1184@> wrote:
> > >
> > > Eric
> > >
> > > Thanks for the input, IMO the battery is key here.
> > >
> > > The actual power required to push the boat and the reserve capacity was what I was unsure of. It's good to get advice from some one who has experience in the field rather than just going it alone. Truthfully I had been more interested in the mechanical part of the system and did not put much effort in calculating the battery requirements. I was a little optimistic on range but I could start with smaller pack and go larger later. L/A or AGM will certainly add a lot of weight, maybe a smaller lithium pack, say 40 or 50 Ah and generator (Hybrid) would be the way to go. Several things to consider and of course cost; the boat although in very good shape is 39 years old.
> > >
> > > Glenn
> > >
> >
>
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