I did read th your posts, and quite a bit of the website, too. My
point is that VW and Winnebago (and Toyota, for that matter, since I
have a Sienna) don't invest in leading edge battery technology for
running accessories (and doesn't every new vehicle on the road have a
lot of accessories, many of which are used when the motor isn't
running, so good battery performance matters more and more?).
There isn't a single device on your van -- from batteries to seat
belts to gaskets -- that couldn't be made better, much better. You can
always find an aftermarket supplier that does something better. That
doesn't mean, as you exasperatedly wondered, "this stuff wasn't
figured out at the level of the factory engineering."
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--- In ev_update@..., "Garrett" <garrett.elists@...> wrote:
Pat,
Okay, your point is made. However, did you read that long post from
the Sprinter list before doing your note here? The original post was
*nothing* about what you're saying I am slamming VW and Winnebago
for.
It wasn't about, as you say, "batteries need to be charged." Of
course they do! And that was the VERY POINT the original poster was
making!! The original post was about supplying the *correct* voltage
and amperage to the batteries and how a cranking battery (up front)
needs a *different* voltage for charging than does the deep cycle
batteries (in back)... otherwise the the deep cycle batteries never
get fully charged... and the deep cycle battery suffers a premature
death and never operates correctly or efficiently from the very start
(because it NEVER gets fully charged).
It was nothing to do about "free lunch."
It was nothing to do about "free electricity."
Let me invite you to first read the original post and then reply to
me off line (privately), if you care to take this further with me.
The orignal post wasn't at all about conversion losses or running A/C
off the battery or alternator. The orginal post was about (that
fellow's assertion as to) how the WRONG amperage and voltage gets
supplied by the alternator and how that hurts the deep cycle
batteries... and the original post went into a possible solution that
he (the original poster) was going to investigate further.
My lamenting is that the correct voltage and amperage (if the
original poster is correct in his assertions) should have been known,
figured out, and supplied by the VW and/or Winnebago engineers.
I'm not slamming anyone for not supplying a free lunch or free
electricity. That would be ridiculous.
Best wishes,
Garrett
--- In ev_update@..., "pat_under_hill"
<pat_under_hill@> wrote:
Garrett, don't be so quick to harshly judge VW and Winnebago. There
is
no free lunch, and no free electricity, either. Batteries need to be
charged, and that takes fuel. Use great batteries (and maybe even an
extra alternator as that website shows) and maybe you can run your
cabin air conditioning system on electricity alone, but is that more
efficient? Maybe not. Rarely is burning gas to charge batteries to
then power devices more efficient than just burning gas and avoiding
the conversion losses. Maybe it is, maybe it isn't, but without
more
information it's premature to slam VW and/or Winnebago.
--- In ev_update@..., "Garrett" <garrett.elists@> wrote:
David Richoux wrote:
For those with a Coach Battery - EVC and others, I found this
on the
Yahoo Sprinter list yesterday. <snip>
This was facinating and quite informative. The post and the
included
URL cited sheds a LOT of clarity and light on the subjet.
Here is the URL again:
It makes me wonder WHY this stuff wasn't figured out at the level
of
the factory engineering (i.e. Winnebago, VW, etc.)? Why should
the
consumer have to go through this kind of re-engineering just to
bring
the product (EVC, Sprinter, etc.) up to minimum standard?
Thanks for swiping and re-posting this piece, David. It also
makes me
wonder if I should also be monitoring the Sprinter list!? ;)
Garrett
1999 EVC, "DolphinJazz"
2002 EVC, "Serenity"
