Re: [MV] CHEAP (er) 24 to 12 volt converters, if you care

From: Ed Kirkley (mojoedd@bellsouth.net)
Date: Sun Feb 24 2002 - 06:41:32 PST


Hi Mel,

Will check that later this morning. I had already checked the block on the
passenger side of the truck before I got your message.

Thanks,

Ed Kirkley KG4OUJ
1984 M1009
M103 Trailer
----- Original Message -----
From: <nourmahal@att.net>
To: "Ed Kirkley" <mojoedd@bellsouth.net>
Cc: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Sunday, February 24, 2002 01:03
Subject: Re: [MV] CHEAP (er) 24 to 12 volt converters, if you care

> Howdy Ed,
>
> Is the reducer you mention for the glow plug system allways hot or
energized? If so, someone could tap into
> the electrical system downstream of the reducer but upstream of the glow
plug switch to get 12VDC.
>
> What is the situation?
>
> Regards,
> Mel Miller
> M725
> > Hi Richard,
> >
> > I don't understand why the CUCV M1009 has that system either. It's very
> > strange when you get into it. The two 12 VDC batteries are in series to
> > provide 24 volts to the two way radio system and some other items on the
> > truck but the basic truck is 12 VDC! The lights, turn signals, glow
plugs
> > and a lot of other items are 12 VDC. As a matter of fact there is a
lead
> > off of one of the batteries that goes directly to the glow plug system!
It
> > goes into a reducer that takes the 24 VDC and changes it into 12 VDC!
I'm
> > sure that the more experienced CUCV people on the list will have a lot
more
> > information on the subject and I will bow to them for more details if
> > needed.
> >
> > I have been running 12 VDC off of one of my batteries since I've had the
> > truck with no problems. I use it to run a lot of items but only when
the
> > truck is running. I also have had the Solargizers installed, (one per
> > battery), since I've had the truck and recommend them highly.
> >
> > Best Regards,
> >
> > Ed Kirkley KG4OUJ
> > 1984 M1009
> > M103 Trailer
> > ----- Original Message -----
> > From: "Richard Notton" <Richard@fv623.demon.co.uk>
> > To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> > Sent: Saturday, February 23, 2002 16:00
> > Subject: Re: [MV] CHEAP (er) 24 to 12 volt converters, if you care
> >
> >
> > >
> > > ----- Original Message -----
> > > From: "Ed Kirkley" <mojoedd@bellsouth.net>
> > > To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> > > Sent: Saturday, February 23, 2002 2:16 PM
> > > Subject: Re: [MV] CHEAP (er) 24 to 12 volt converters, if you care
> > >
> > >
> > > > Jeff,
> > > >
> > > > I understand the wording of your message and in that setup I tend to
> > agree.
> > > > On the other hand in a two 12 volt battery system with two
alternators
> > that
> > > > each provide power to one battery, (such as my CUCV), I wouldn't
think
> > that
> > > > this would apply?
> > > >
> > > The piece from Jeff is quite correct when the system is fed by one
charge
> > source
> > > only and I was going to point out the subtle but substantial
difference,
> > as Ed
> > > has done here, with the twin 12V alternator arrangement; although
entirely
> > alien
> > > to us here and I cannot think of one commercial or military vehicle
this
> > end
> > > which uses such a system. Apart from being able to handle imbalanced
> > loads I
> > > cannot understand why such complexity is designed-in in the first
place.
> > >
> > > Its not just a case of discharging one battery of the 24V bank, you
can
> > envision
> > > this with just one of the older style batteries having inter-cell lead
> > links on
> > > the outside. Here it is quite possible to tap one cell for instance
> > (should you
> > > want a nominal 2V source) and again destroy that cell and thus the
other 5
> > by
> > > the means previously described.
> > >
> > > Richard
> > > Southampton - England
> > > -Solent Area MVT-
> > > http://www.solentmvt.co.uk
> > >
> > >
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> > >
> >
> >
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