Re: [Electric Boats] Power Boat Conversion

 

Hi Hans thanks for your input. I really do need a lot of "ampere storage" for this project and hope it will not be as high as in your calculation. But high attention has to be given to this important module of the "going electric" adventure. Best wishes Stephan Hinni --- On Sun, 9/26/10, Hans Rijnbout <jrijnb@xs4all.nl> wrote: From: Hans Rijnbout <jrijnb@xs4all.nl> Subject: Re: [Electric Boats] Power Boat Conversion To: electricboats@yahoogroups.com Date: Sunday, September 26, 2010, 6:57 PM   Hans Rijnbout wrote: Even with some added weight from the batteries your boat should run at about 6 knots at 20 kW power. So 40 miles take 7 hours, using 7*20 = 140 kWh net energy. With lead-acid batteries at 50% depth of discharge this would add around 15000 lbs to the weight, so this does not look realistic. Lithium batteries at about 80 or 90% d.o.d. would weigh in at around 4000 lbs and would cost you a small fortune. -- Hans Rijnbout Utrecht, Netherlands

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