Sunday, September 3, 2017

Re: [Electric Boats] Re: Hybrid w/Honda 2000

 

Thanks  for the info here, quite the setup and experience.


I like the key takeaway:  the secret to keeping a boat charged up is to buddy up with a big trawler and genset!


cheers, peter





From: electricboats@yahoogroups.com <electricboats@yahoogroups.com> on behalf of albert682@yahoo.com [electricboats] <electricboats@yahoogroups.com>
Sent: Sunday, September 3, 2017 10:20 AM
To: electricboats@yahoogroups.com
Subject: [Electric Boats] Re: Hybrid w/Honda 2000
 
 

https://www.youtube.com/channel/UC6BAWH7F1cixqeoS1XlLYww/videos?shelf_id=0&view=0&sort=dd




On my youtube channel I have some videos while underway.  Well not some.  Around 400 of them.
We just did 24 days of cruising the PNW with our solar catamaran.  Today we are leaving for Pitt Lake again to finish off the season with a week out.

We use a Honda 2000 to drive two Lestronic II chargers.  The Honda gives us 30-33 amps from the chargers at 48v nominal.  When we combine that with out solar input 0-27 amps at 48v we have freedom to choose when to run the generator or not.

We found if anything we could use another Honda 2000 and a couple more chargers of the same type.  That would allow us to charge at upwards of 80 amps.  This would also mean we can turn prop the same amount as well and never deplete the bank.

Of course it would have to be some pretty extreme conditions for us to be turning prop at 40 amps a side.  We can spool our motors up over 80 amps each if needed but conditions never require that unless we force the issue.

Here you can watch this video to see how one Honda and two chargers compliments our 20kwh lithium battery and solar install.  We run Rayeo System 400 outboards.  https://www.youtube.com/watch?v=1Unk7zAU95E  We actually end up facing over 9 knots of current against us as the tide chart that is up in the video is for the top orange arrow not the bottom one.  The bottom arrow read clearly 9 knots. 


We had fun that day and for the rest of the 23 days out with the boat and covered a lot of the PNW.  We recorded over 400 videos of the trip so if you would like more let me know.  Typically we either would charge at anchorage during the evening supper duties and once over night.  It would take two tanks of gas to get us back to almost full on the bank. 

We would also charge underway to always be sure to set the throttles lower than the input.  We found out we have unlimited range more or less without the hassle of the sails.  Plus we are doing it with a damaged panel dragging out charge controller out of MPPT mode. 

We also found out that when you hear a trawler in the morning charging just ask if you can plug in.  They don't seem to mind and rather enjoy exercising their generators more.  15 amps over morning breakfast and coffee is better than disturbing the anchorage with our above deck.

Arden

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Posted by: Peter Ford <petersford@hotmail.com>
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