Friday, September 24, 2010

[Electric Boats] Re: Motoring with a battery charger

 

Brian,

Congratulations! 27A at the batteries is very impressive. If your results continue to support these numbers, I think that many people here will be able to take advantage of this solution to break through the "range" barrier that most people struggle with when first considering electric conversions.

If my regular life would get out of the way, I'd get my boat finished. When I do, I'll be able to report on my similar set up of a Yamaha EF2000iS and an Elcon 2000+.

Of course, another advantage is the modularity of the solution. You can bring the generator only when you might need it. On day sails, it can be left ashore.

Fair winds,
Eric
Marina del Rey, CA

--- In electricboats@yahoogroups.com, "Brian Holt" <drmsudo@...> wrote:
>
> Well the Elcon charger came this week and I installed it yesterday. It charges my AGM bank higher than the Dual Pro. I did test it out yesterday with my Honda 2000 generator. With my boat tied up in the slip I ran the motor while hooked up to the generator. Monitoring the paktrakr, I pulled 27 amp before the generator started bogging down. The voltage pulling at 27amp was a constant 49.2 and would occasionally climb then drop, but not below 49.2. When I shut down everything after 10min of use the voltage read 51.4 which is where I had started. I am very happy with these results as 20amp easily pushes my boat 4knts (in calm waters). This is a great set up! I rarely will use the generator, but I feel comfortable cruising longer distances now with this back up. It is also nice to have two chargers onboard. Hopefully the cost of LiFePo4 will come down to more reasonable cost in the future. Then I will already have a charger that will work for the new bank. Next project is to build a platform off the stern where I can place the generator while in use to keep the smell and sound to a minimum. I already have an idea utilizing my existing swim ladder. I will give an update when I have more experience using this set up. Thanks again for all the input!
> Brian
> --- In electricboats@yahoogroups.com, "Eric" <ewdysar@> wrote:
> >
> > Brian,
> >
> > You will need separate chargers for your AGMs and Lithium banks. The batteries have significantly different charging needs....
> >
> > Fair winds,
> > Eric
> >

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