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From: roy@alanine.phri.nyu.edu (Roy Smith)
Newsgroups: rec.boats,sci.electronics
Subject: Battery-charger tap from outboard motor
Message-ID: <1990Jul24.153632.27480@phri.nyu.edu>
Date: 24 Jul 90 15:36:32 GMT
Sender: news@phri.nyu.edu (News System)
Organization: Public Health Research Institute, New York City
Lines: 17


	A boat I'm looking at comes with a 5-HP Mariner outboard that has an
electrical output jack that is supposed to supply about 5A for recharging a
12V battery.  The current owner says he tried to use it once but ended up
blowing out some of his electronics because the voltage output goes all over
the place.  He tried changing the regulator in the motor, but that didn't
help.  Anybody have any experience with these sorts of things?  Any
suggestions on putting together some sort of external regulator that would be
hefty enough to handle the current load and voltage fluctuations, withstand
the marine environment (i.e. salt air, spray, etc), and have a small enough
voltage drop that I still got something useful out (about 14V for charging
purposes, I would guess)?  I doubt a 78xx would do the job.
--
Roy Smith, Public Health Research Institute
455 First Avenue, New York, NY 10016
roy@alanine.phri.nyu.edu -OR- {att,cmcl2,rutgers,hombre}!phri!roy
"Arcane?  Did you say arcane?  It wouldn't be Unix if it wasn't arcane!"