From: Dave Cole (DavidCole@tk7.net)
Date: Sat Sep 28 2002 - 13:09:04 PDT
That would be a lot simpler, but then you would be relying upon the generator to supply the power to begin with again, plus you would be dumping half the
power input to the spare battery to heat. That's why the 24 to 12 volt inverter circuitry is so attractive, there is not a 50% loss in power going to 12 volts.
I'd like to make some changes to the ignition system of my M51, get rid of the points setup by putting in a Pertronics ignition kit. I'd also like to experiment
with putting an MSD ignition system on the truck or adapt a 6 cylinder GM HEI unit to the engine. The existing ignition is a little weak, especially during
startup. But all of this requires a rock solid reliable 12 volt source of power. Hence the GM 12 volt alternator idea. I don't know if a 24 to 12 volt converter
would be sufficiently reliable. I don't want to have my truck die in the middle of a gravel pit with 10 tons of rock in the bed.
Dave
<<<<<<<<<<<<<<<<<<<<
9/27/2002 10:32:42 PM, "Bjorn Brandstedt" <super_deuce@hotmail.com> wrote:
>
>Perhaps the simplest way to get 12 volts on board without upsetting the
>charging of the original dual battery system is to add a third battery of
>size and capacity for the individuals needs and just let it charge from the
>24 volt system.
>
>You would need a charger, which in effect would be a 24 v to charging
>voltage converter. Since the third battery acts as a huge filter, that
>converter can be much simpler than a full blown DC to DC converter and of a
>lot lower capacity.
>
>I think this would be a lot easier than adding a separate
>alternator/regulator and wiring etc.
>
>Let me know if I'm missing something, it happens.
>
>Regards,
>Bjorn
>
>
>
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