If the voltage could be matched to 72V then the output should be able to
applied to the battery bank's output (final - and + of the series).  Wiring
several 12V chargers in series isn't viable.  (I assume that's what you're
talking about)

On Tue, Apr 1, 2008 at 5:09 PM, john fisher <[EMAIL PROTECTED]> wrote:

> that all sounds good, at least to me. Alternators can't be very
> inefficient these days, as the OEMs are working pretty
> hard at weight and power drain. They do run at 2x or 3x crankspeed. And
> they are rugged and cheap.
>
> what about balancing the charge across the batteries, can you just dump
> into them? You can't do that ( for long) with
> your regular charger they say. What would that hookup look like?
>
> Andrew wrote:
> >
> >
> > I do have a idea of how to assemble a smart setup.  I'd install a small
> gas
> > engine to turn a high output alt with the regulator bypassed.  To
> control
> > voltage, I'd use a microcontroller (basic stamp) to monitor the voltage
> > output of the "genset" and control the engine RPM with a small RC servo.
> > Depending on the code size.  I could possibly setup the microcontroller
> to
> > monitor the onboard battery levels and engage/disengage the genset as
> > needed.  (With an electric start engine.  I've seen several on ebay.)
> >
> > I've got the bike, I've got a few alternators I could play with.  I've
> even
> > got a test lawnmower engine I could develop the control module with.
> >
>
>

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