Mark Stafford wrote:
> Thanks Denny,
>
> My bad... the Honda EU2000 could supply AC to an onboard charger giving 30+ amps to a 48volt bank. But that is only maybe 3 knots in calm wind for a 36 foot Union Polaris sailboat.
>
> Four EU2000's, plus four parallel onboard chargers.... no that would be silly, and if they were smart chargers, they would fight (except one company programs their chargers to parallel park).
> Four EU2000's giving almost 8KW AC, run through a high amperage rectifier and smoothing capacitor to get 120volts DC, then stepped down through a DC/DC converter to 54 volts bulk charging, then switched to another DC/DC converter to 51 volts for finish charging.... no, that gets too complicated.
> Four EU2000's powering one very unusual high amperage 48volt DC onboard charger. Sounds expensive... what am I missing? It must be too late in the evening for me.
>
That you could buy a bigger gen set ?
Honda don't stop at 2Kw....
They (at least in the 230v world) have
an
EU30i (3kw)
EU50is (5kw)
EU65is (6.5kw)
One EU65is would probably be some what more efficient than running 3 x
2kw engines in parallel.
Although at 95kg, the EU65is isn't quite as portable as the 21kg EU20i
(EU2000), but the bigger ones do have wheels :-)
Building a 6kw charge controller might be a challenge.
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