Wouldn't 35amps x 4 overload the Honda? if the batteries are drawing all they can, that wouldn't leave much room for the motor. Or am I misunderstanding all this?
--- In electricboats@yahoogroups.com, Arby Bernt <arbybernt@...> wrote:
>
> Go with the WFCO units. Each unit tends a single battery, 35a continuous output with three stage charging. Dozens installed, not a single failure (except one installed in reverse polarity, don't go there...)
>
> Be Well,
> Arby
>
> On Nov 15, 2012, at 8:28 PM, "kotyara73" <krollokot@...> wrote:
>
> > One thing that I never really gave much thought to is the battery charger. But now, having read the recent discussions on the topic, I started doing some more research on it and now I more confused than ever. So, I'd like some help choosing the right unit. Battery bank will likely be 4x100-150Ah AGMs feeding ME907/Sevcon kit. Here're the requirements (or at least draft requirements :)
> >
> > 1. Has to be able to work with the Honda genny. I gather that means drawing between 13.5 and 14 amps from it, which should result in ~25amp on DC side.
> >
> > 2. Has to be able to supply that power to the motor when the batteries are low. Otherwise, what's the point of a backup genny?
> >
> > 3. 4-bank 12v charger so as not to worry about battery imbalance? Not too sure about this one, but it seems reasonable.
> >
> > 4. Has to be robust enough to be left plugged in for a couple of weeks and keep the batteries happy. There won't be any other load at this time.
> >
> > 5. Solid state rather than transformer, for efficiency.
> >
> > 6. Not too expensive. I'm figuring $500 tops, but obviously the lower the better.
> >
> > Here're the options that I've gleaned from discussions in this group:
> >
> > 1. Elcon. Sounds like the right unit (except for being serial), but it's $750...
> >
> > 2. QuickCharge. Transformer, doesn't sound very robust.
> >
> > 3. DualPro. Issues with motor load while charging.
> >
> > 4. Zhivan. Not sure what to think of this one.
> >
> > 5. ProMariner. Saw it mentioned once. Sounds good, but I can't figure out their specs. When they say it's 4-bank 60Amps 12/24/36/48, what exactly do the amps refer to? They don't list their input amp draw either.
> >
> > 6. 4xWFCO converters. Arby's special :) Seems like a good solution, but single unit would be nicer. They also sell main boards, would it be difficult to put four of them in a single enclosure?
> >
> > So, as I said, I'm confused. What say you? What would be the best option?
> >
> >
>
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