Re: [electricboats] 15 KW DC l electric conversikon

Larry, what size and displacement is your vessel?  Also, where are you (Keeping temp down in Tampa Bay would be more challenging than Victoria CA) and what are you using for ventilation? 

 I would love to have LiFePo batteries but the price doesn't seem to come down.  Looking forward to aluminum batteries.  The scuttlebut being that they will be better performing and with the lower materials cost they will be much cheaper.  With plans on keeping my AGMs as long as I can I'm only bringing them to 80% if possible.  50 on occasion.  Being able to use 90% of lithium every time with so many cycles is the cat's meow. 😉

Larry

On Feb 9, 2020, at 1:34 AM, L Schmitz via Groups.Io <terminalift=yahoo.com@groups.io> wrote:

 I have the same set up. 10 kw   48 v system. Lithium iron phosphate cells in parallel  and seriesRunning tethered to the dock. 4 hrs. With lithium dyi  assembly  70a continuous running. No heat issues Next week is the real test. I will keep you posted  Should be able to run hull speed 6 hrs or more. Cheers 

Best regards,

Larry Schmitz

On Saturday, February 8, 2020, 7:20 PM, Larry Brown <elcapitanbrown@gmail.com> wrote:

I got my motor and controller from Thunderstruck-ev.com.  I just added the batteries and in my case generators for my idea of how I wanted to use the system.  They have been extremely helpful along the way.  There are other outfits out there that I cannot speak for.  Only that these guys have been great for me.  My trimaran is 38' x 22'6", 9k lbs.  I chose the air cooled motor because I like the idea a bag won't get sucked up into my cooling line and overheat the motor.  That being said I have yet to test mine in the Florida heat.  I'll know more this summer how hard it is to keep cool.  Ultimately I may have to switch.  But I'd rather try the option that would be simplest first.

There are more and more of us out here to give help as time goes.  This is really the future of sailboat auxiliary I think.  I'm hopeful power boats are able to use it as well.  As it stands I have a 2 to 1 reduction and I'm going to be trying my 2 blade prop previously used for a 30hp Yanmar.  It was pushing a lot of water at 40amps today for an hour at the dock.  I'm still working on finishing up and organizing wires etc. but hopefully in the next few weeks I'll take her for a run out to the gulf to see if 40amps is 5knots or what.  That's my hope.  With two of my 350w solar panels connected it was putting roughly 10amps into the system so the batteries were only putting out 30amps.   This was good to see even though today was best case for solar.  No clouds at all. 

Hope this was helpful.

On Feb 8, 2020, at 4:11 PM, gimmx via Groups.Io <gimmx=icloud.com@groups.io> wrote:

i am a marine service company in mexico wishing help in converting a 40 foot trimaran from diesel to electric propulsion.   Garth Jones.   I need some help and advice