Thanks for the info Kangaroo16. I'll get to studying it all this arvo when I
have more time. Just to let you know, we have a petrol/gas 4.5 ST Nissan
Patrol wagon. 2000 vintage. And a 22ft Regent Crusader caravan. 1999
vintage. The best we could afford so it will have to suffice! The wagon
already has UHF set up and auxillary battery under bonnet. The van has
toilet/shower combo because I can't walk very well - or very far to
ablutions. We've done quite a bit of travelling back and forth across the
nullabor (visiting family in the eastern states) over the years and also a
quick trip in a small van to Pt Hedland via the coast and home down the
centre.
I think hubby is keen on the Honda generators for power. I have MS so need
to be able to run the air/con when it's hot. We may need to join 2 together
to get enough power to run it though.
So air/con will be our biggest drawer of power (I think). The van has 12volt
lights and 3way fridge. Hmmm... Might have to do a weekend away to test it
out. I'd be in that!!!
Thanks again Kangaroo16
"kangaroo16" wrote in message
news:5889g311g1pu2htqjae0qq9vp4da1sq9s4@4ax.com...
> On Thu, 4 Oct 2007 11:08:06 +0800, "Sandgroper"
> wrote in
> <13g8kll546lgra2@corp.supernews.com> :
>
> >We live in Western Australia and will soon be doing the big lap. I'd like
to
> >get advice from other people regarding best times, places, generating
power
> >etc.
> >Cheers, Carmel
>
> Well, as to places, at a start, every place you have never seen
> before is a "new place" is it not?
>
> After all, any book, however old, that we have never read before,
> is a "new" book.
>
> Any place we have never seen, however old, is a "new" place.
>
> Any information we don't have, from whatever source, is "new
> information".
>
> If my last post didn't give you enough info to keep you busy for
> awhile, will go on to the next point of "electricity
> requirements"
>
> For whatever equipment? IMHO, as a migrant, we both live in one
> of the best countries in the world. "Godzone". ["God's own"]
>
> Unless you plan to go to the "Snowy Mountains" in N.S.W. just
> what do you expect in power requirements?
>
> If you did, would you want to run a 1 or 2 kilowatt bar heater?
>
> If so, you would have to carry along a rather large power plant
> even for this purely resistive load with no power factor.
>
> Were my wife and I were to contemplate a "round Australia" trip
> we would get along quite nicely on a 12 volt D.C. supply.
>
> Want to visit a cold area? Rare in Oz, of course! Then wear
> warm clothing, or build a fire, if permitted.
>
> Personally, I can't immediately conceive of anything I would
> conceivably need in Australia that couldn't be obtained by 12
> volt D.C. batteries.
>
> However, were we going on a "round Australia" trip, would be
> looking at "deep discharge" automotive batteries, say at
> least 300 or 400 amps, in vehicle. A couple of these.
>
> If taking a caravan, a couple here as well. Automatic charge,
> switchable discharge.
>
> With 4 such batteries, we would have 1200 amps available
> at a nominal 12 volts.
>
> Into a resistive load, volts x amps = watts.
>
> 12 x 1200 amps ~ = 14,400 watts.
>
> Theoretical, of course, not actual. There are always some
> conversion losses.
>
> However, what are your _real_ needs? Start the vehicle with
> jumper leads, or switching? Perhaps 300 or 400 amps at a nominal
> 12 volts.
>
> But, hey, you have 4 batteries to play with, don't you?
>
> .... And if you cannot start a diesel engine with this on one
> fully charged battery these days, you probably have other
> problems!
>
> So perhaps call for help on phone or radio? Will take a lot
> less power.
>
> What is the fairly obvious lesson from this? Standardise [or
> standardize :-) ] on equipment that runs from roughly 11 to
> 14 volts.
>
> Does it matter if you connect a C.B. or other radio that requires
> a nominal 100 milliamps (nominal), depending on the volume
> control setting, from a 400 amp, or 40000 milliamp battery?
>
> No, it will take only the current [or amperage] required if the
> nominal voltage range is correct. Will work fine.
>
> Suppose you connect a pocket transistor radio that operates at 6
> volts, from whatever size battery, across a 12 volt source such
> as a car battery? Then you will fry every transistor in it as
> well as some other components, and you might as well throw it in
> the nearest garbage can. :-)
>
> Suppose it is a pocket transistor radio that runs off a little
> rectangular 9 volt transistor battery. Can you run it off
> six 1.5 volt cells in series, be they AAA, AA, C, D or even six
> 400 amp lead/acid wet cells in series. Sure! ... if you get
> the polarity right!
>
> Does anyone want to challenge me on this point?
>
> Ah, sometimes I feel like a Rottweiler calling "Here kitty,
> kitty,kitty."
>
> ...Especially on this group! Do you people want valid
> information or not? :-)
>
> Cheers,
> Kangaroo16
>
>
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