RE: Dual Alternators

From: Bernd D. Ratsch (bernd@dodgetrucks.org)
Date: Sun Sep 21 2008 - 10:29:47 EDT


What about grafting a 160amp Jeep alternator into the system...wouldn't be
the first time someone has done that. And it's easier. Also, make sure
you're running 1 or "0" gauge wiring from the battery to the main grounds
and alternator power feed - the factory wires are just too small for higher
amp requirements (such as with 1000W+ stereo systems).

- Bernd

-----Original Message-----
From: Eric [mailto:huffy340@gmail.com]
Sent: Sunday, September 21, 2008 9:17 AM
To: dakota-truck@dakota-truck.net
Subject: Re: DML: Dual Alternators

> I would run an external regulator on the secondary alternator.
> Even with two "identical" alternators the output may vary
> slightly for a given field coil voltage, and the resistance and
> load of that field coil circuit would be thrown way off.

That might be a good idea, but then you have to consider small
diffs in the regulators. They might control the voltage so that
one alt is doing all the work, and the other is putting out
no current behind the diodes.

That may be ok, though: you'd sort of only be using the one until
it couldn't handle the current, then the other would start helping.



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