Driver to drive?

[Archimedes' Lever]

On Thu, 29 Oct 2009 20:45:26 -0700 (PDT), a7yvm109gf5d1@netzero.com
wrote:

On Oct 29, 7:31 pm, Jamie
jamie_ka1lpa_not_valid_after_ka1l...@charter.net> wrote:

Isn't that a little exaggerated ?

My ass isn't nearly that big, I've been working out.

Fat women make the exact same statements when they lose three of their
300 pounds.

You have been working out at being a pathetic abuser of Usenet news
groups.

That's about it, dumbfuck.

 

[Raveninghorde]

On Thu, 29 Oct 2009 23:47:04 +0000, Ian Bell <ruffrecords@yahoo.com>
wrote:

Artemus wrote:
"Raveninghorde" <raveninghorde@invalid> wrote in message
news:3ltie51h6re5ebaomndvlfjsti138n0iag@4ax.com...
One of my chaps is off to do his PhD, which means he will know a lot
about nothing.

He asked me the other day if reversing the 24V AC power supply to a
board had caused damage to an elctrolytic capacitor. I don't think
you have to know the circuit to answer the question.

Talk about not understanding what he knows.

My favorite was proudly proclaimed by a MSEE with 3 months actual
hands on work experience. "I found the problem. The fuse is shorted."
Art



Is it me or was it only 'in the old days' that people went into
electronics (.i.e. got educated in it at college level) because they
were already hooked on it and had built a bunch of stuff? A friend and I
were selling crystal radios at primary school before we were eleven
years old. By the time I was 18 and went to university I had read every
electronics book in the city library, passed the Radio Amateurs Exam,
and built dozens of bits of kit. Don't kids do that any more?

Cheers

Ian

http://www.youtube.com/watch?v=6qDSvfpaGiI

 

[Bill Sloman]

On Oct 29, 5:04 pm, o...@uakron.edu wrote:

Not surprising.Have you read any IEEE papers most of those pea brains
have PHD's.

They have to have a doctorate or a masters, or your not really allowed
to publish in most  refereed journals, unless your a student working
with a PhD..

It certainly isn't a formal requirement. Organising your message into
the right format, and tying it back to earlier, relevant, published
work does require that you've read a few scientific papers and
understand why they are put together in the way that they are. It took
me a while to get it right, and - thinking back about the training I
got during my Ph.D. - I could have used more training in that area.

I'm dealing with a situation where a friend doesn't have the right
"qualifications" to publish. He  came up with something earthshaking,
new, useful, and novel, patented it, licensed it etc,  Now wants to
further it along, and publish what he found.  His condition for
working with the pointy haired crowd, simply his name is on the
byline, he'd even fund the research. He knows the science better then
most postdocs in the field.

Tell me more - I've got academic friends, and non-academic friends who
publish in peer-reviewed journals. One of us might be able to help.

--
Bill Sloman, Nijmegen

 

[Bill Sloman]

On Oct 29, 6:25 pm, Joerg <inva...@invalid.invalid> wrote:

o...@uakron.edu wrote:
Not surprising.Have you read any IEEE papers most of those pea brains
have PHD's.

They have to have a doctorate or a masters, or your not really allowed
to publish in most  refereed journals, unless your a student working
with a PhD..

One of the huge mistakes in academia.

It would be if it were true.

Right up there with universities
and colleges not allowing practicing engineers to teach because they
don't have the "proper credentials".

I'm dealing with a situation where a friend doesn't have the right
"qualifications" to publish. He  came up with something earthshaking,
new, useful, and novel, patented it, licensed it etc,  Now wants to
further it along, and publish what he found.  His condition for
working with the pointy haired crowd, simply his name is on the
byline, he'd even fund the research. He knows the science better then
most postdocs in the field.

So far no takers.

Why not self-publish it on a web site and make sure search engines find
it? You can format it just like a scientific publication and there's
nothing the ivory tower guys can do against it.

Getting the format right is tricky. In the - limited - refereeing I've
done for "Measurement Science and Technology" I've run into a lot of
graduate student and post-docs who haven't remotely mastered the
format - the content was mostly unimpressive as well, so it might
just have been a side-effect of stupidity.

--
Bill Sloman, Nijmegen

 

[Bill Sloman]

On Oct 29, 8:43 pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:

Jim Thompson wrote:

On Thu, 29 Oct 2009 13:03:16 -0700, Charlie E. <edmond...@ieee.org
wrote:

On Thu, 29 Oct 2009 11:50:23 -0700 (PDT), "Ken S. Tucker"
dynam...@vianet.on.ca> wrote:

On Oct 29, 4:09 am, Raveninghorde <raveninghorde@invalid> wrote:
One of my chaps is off to do his PhD, which means he will know a lot
about nothing.

He asked me the other day if reversing the 24V AC power supply to a
board had caused damage to an elctrolytic capacitor.  I don't think
you have to know the circuit to answer the question.

Talk about not understanding what he knows.

I find Ph.d's know a lot about something specialized, sometimes
as mundane as 'navel lint, but can be naive out of their specialty
without being aware of it, since they conflate with the degree.
A caboose of alphabet behind your name means squat after a
few years in reality, wherein your true talent is exposed.
Ken

That is part of where the AGW crowd got started.  One guy gets a
theory, and publishes 'proof.'  The next guy looking at it says,
"Well, the part in my field is all ca-ca, but this other stuff looks
compelling..." and so supports his collegue.  The other guys, in the
other fields, all feel the same, but still support the original
premise since they can't refute the stuff outside their own field of
expertise.  Also, since that second guy supports it, the stuff in his
area must be right...

Charlie

And then there's the Slowman type that rubber-stamps _anything_
spouted by academia, even though he, himself, couldn't manage a
left-handed screw (purport that as you may ;-)

   Someone told him to get bent, and he did.

Michael A. Terrell, brown-beaking for for all he is worth (which isn't
much).

--
Bill Sloman, Nijmegen

 

[Bill Sloman]

On Oct 29, 8:17 pm, Jim Thompson <To-Email-Use-The-Envelope-I...@My-
Web-Site.com> wrote:

On Thu, 29 Oct 2009 13:03:16 -0700, Charlie E. <edmond...@ieee.org
wrote:



On Thu, 29 Oct 2009 11:50:23 -0700 (PDT), "Ken S. Tucker"
dynam...@vianet.on.ca> wrote:

On Oct 29, 4:09 am, Raveninghorde <raveninghorde@invalid> wrote:
One of my chaps is off to do his PhD, which means he will know a lot
about nothing.

He asked me the other day if reversing the 24V AC power supply to a
board had caused damage to an elctrolytic capacitor.  I don't think
you have to know the circuit to answer the question.

Talk about not understanding what he knows.

I find Ph.d's know a lot about something specialized, sometimes
as mundane as 'navel lint, but can be naive out of their specialty
without being aware of it, since they conflate with the degree.
A caboose of alphabet behind your name means squat after a
few years in reality, wherein your true talent is exposed.
Ken

That is part of where the AGW crowd got started.  One guy gets a
theory, and publishes 'proof.'  The next guy looking at it says,
"Well, the part in my field is all ca-ca, but this other stuff looks
compelling..." and so supports his collegue.  The other guys, in the
other fields, all feel the same, but still support the original
premise since they can't refute the stuff outside their own field of
expertise.  Also, since that second guy supports it, the stuff in his
area must be right...

Charlie

And then there's the Slowman type that rubber-stamps _anything_
spouted by academia, even though he, himself, couldn't manage a
left-handed screw (purport that as you may ;-)

Jim-out-of-touch-with-reality-Thompson strikes again. I'm actually a
useful odd-jobs man, and do carpentry, plumbing, and the odd bit of
household wiring. I am left-handed, and do understand differential
screws.

If Jim had the wits left to let him think, he might wonder how a guy
with a Ph.D. in chemistry got to know enough electronics to have a
couple of patents and cited publications in the area.

But Jim really is away with the fairies.

--
Bill Sloman, Nijmegen

 

[Joel Koltner]

Hi Jim,

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote in
message news:b40ke5ljn7ts1bkuj42gf26q4t0biu45sp@4ax.com...

Yep, MIT is well known as a party school. When I was a student, the
local liquor stores would deliver to the dorms, no ID checked.

Nice!

Is there interest? Analog I/C design is almost a lost art.

Here's one dude who's teaching it:
http://www.aicdesign.org/upcomingcourse.html -- $1800 for a week with him. (I
can't say I know who he is -- although I probably should --... seems like
he has a book out too:
http://www.amazon.com/Analog-Circuit-Design-Phillip-Allen/dp/0195116445 ).

Several people at work here have taken Besser classes:
http://www.besserassociates.com/ -- quality is fine, although their prices
tend to be on the high end.

---Joel

 

[Jim Thompson]

On Fri, 30 Oct 2009 08:54:57 -0700, "Joel Koltner"
<zapwireDASHgroups@yahoo.com> wrote:

Hi Jim,

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote in
message news:b40ke5ljn7ts1bkuj42gf26q4t0biu45sp@4ax.com...
Yep, MIT is well known as a party school. When I was a student, the
local liquor stores would deliver to the dorms, no ID checked.

Nice!

In Massachusetts, epitome of the church-police state, no less ;-)

Reminds me... back then, 1958+, it was illegal to sell prophylactics.
However a discrete inquiry at a drug store got me an offer for a good
price on a gross ;-)

Is there interest? Analog I/C design is almost a lost art.

Here's one dude who's teaching it:
http://www.aicdesign.org/upcomingcourse.html -- $1800 for a week with him. (I
can't say I know who he is -- although I probably should --... seems like
he has a book out too:
http://www.amazon.com/Analog-Circuit-Design-Phillip-Allen/dp/0195116445 ).

Several people at work here have taken Besser classes:
http://www.besserassociates.com/ -- quality is fine, although their prices
tend to be on the high end.

---Joel

So it looks like the basics are already covered.

I've contemplated, more for amusement than anything else, selling "A
Week with the Master", look over my shoulder while I do a real design,
but I'm sure there'd be no takers ;-)

It would take a student already with some I/C design experience to
keep up. But, from what I note of the lurkers, the handful who know
I/C design are already experts themselves.

(And the rest are mouthy know-nothings ;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

With Half My Brain Tied Behind My Back
Still More Clever Than Mr.Prissy Pants

 

[Joel Koltner]

"Les Cargill" <lcargill99@comcast.net> wrote in message
news:hcdmr0$ia4$1@news.eternal-september.org...

I had the great fortune of relatives bringing me broken kit
to fix, under supervision. So can you do that with an iPod?

Perhaps not as "well" -- clearly the average kid isn't going to have anything
approaching the means to, e.g., swap a BGA component -- but there's still some
opportunity for learning in replacing broken headphone jacks, cracked LCD
modules, dead hard drives from being dropped, etc.

I had these great Radio Shack kits, where one would trap
discrete components under springs to make circuits. These were
designed to make electronics feel like anything but deferred
gratification.

Similar items are still around, e.g., http://www.elenco.com/snapcircuits.html
(even Radio Shack has a few kits like that). And microcontroller development
kits (from, e.g., Parallax) are very common today if you're interested in
digital electronics. In fact, personally I believe that electronics is far
more accessible, cheaper, and easier than ever today... it's just that the
interest in it -- particularly analog design -- has largely waned due to the
"wow" factor of iPhones, Wiis, and PCs.

---Joel

 

[Joel Koltner]

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote in
message news:dd3me5hkur1j5hri4llr94q55a28mkceub@4ax.com...

local liquor stores would deliver to the dorms, no ID checked.
Reminds me... back then, 1958+, it was illegal to sell prophylactics.

Sounds like a policy aimed at rapidly increasing the population.

I didn't realize that prophylactics had ever been illegal. Sheesh...

I've contemplated, more for amusement than anything else, selling "A
Week with the Master", look over my shoulder while I do a real design,
but I'm sure there'd be no takers ;-)

I would guess there's a bit of a time problem there in that in an 8 hour day
there's perhaps an hour of "really good tricks" and 7 hours of, "now I hit
'simulate' on PSpice, and now I'm going to go grab a glass of wine and check
our what the horned owls have eaten for dinner while it simulates for the next
10 minutes..." ?

Something like a "Highlight of A Week With the Master" on DVD might sell quite
well... Randy Rhea sort of headed that direction with some of his DVDs (e.g.,
http://www.scitechpublishing.com/index.asp?PageAction=VIEWPROD&ProdID=338) in
that he'd often be working through a sample design while simultaneously try to
present "the basics" -- but in your case I like the idea of working through
real designs and going with the assumption that the viewer knows how to bias a
transistor for a given transconductance, how a basic current mirror works,
etc.

And think of the "satisfaction" you'd get if you noticed one of your DVDs
being ordered from Nijmegen...

---Joel

 

[Jim Thompson]

On Fri, 30 Oct 2009 10:36:03 -0700, "Joel Koltner"
<zapwireDASHgroups@yahoo.com> wrote:

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote in
message news:dd3me5hkur1j5hri4llr94q55a28mkceub@4ax.com...
local liquor stores would deliver to the dorms, no ID checked.
Reminds me... back then, 1958+, it was illegal to sell prophylactics.

Sounds like a policy aimed at rapidly increasing the population.

I didn't realize that prophylactics had ever been illegal. Sheesh...

At that time the Catholic Church had Massa2shits (and the Boston
Police Department) in a throttle hold.

So badly that the TV showing of "Biography of a Bookie Joint"

http://www.cbsnews.com/blogs/2007/05/25/publiceye/entry2851759.shtml

was blocked on all Massachusetts' TV stations.

(I rigged an antenna pointing toward Providence to see it anyhow...
from our apartment, actually the third floor of an old house on
Magazine Street near Memorial Drive ;-)

I was also arrested and cited for working on Sunday... in Cambridge,
wiring my landlord's garage (formally a carriage house) for lighting,
in exchange for a month's rent.

I've contemplated, more for amusement than anything else, selling "A
Week with the Master", look over my shoulder while I do a real design,
but I'm sure there'd be no takers ;-)

I would guess there's a bit of a time problem there in that in an 8 hour day
there's perhaps an hour of "really good tricks" and 7 hours of, "now I hit
'simulate' on PSpice, and now I'm going to go grab a glass of wine and check
our what the horned owls have eaten for dinner while it simulates for the next
10 minutes..." ?

Possibly, but not likely... I usually don't imbibe until around 6-7 in
the evening... when I turn on O'Reilly ;-)

While simulations run I doodle ideas on paper... I go thru LOTS of
quadrille pads ;-)

Something like a "Highlight of A Week With the Master" on DVD might sell quite
well... Randy Rhea sort of headed that direction with some of his DVDs (e.g.,
http://www.scitechpublishing.com/index.asp?PageAction=VIEWPROD&ProdID=338) in
that he'd often be working through a sample design while simultaneously try to
present "the basics" -- but in your case I like the idea of working through
real designs and going with the assumption that the viewer knows how to bias a
transistor for a given transconductance, how a basic current mirror works,
etc.

And think of the "satisfaction" you'd get if you noticed one of your DVDs
being ordered from Nijmegen...

---Joel

Sno-o-o-o-ort ;-)

Hmmmm? I suppose I could release a CD/DVD of schematics, with
explanations... Win's stuff seems to sell well. I have done literally
100's of chip designs, and the latest one was 70+ pages of drawings
;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.

 

[Joel Koltner]

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote in
message

I was also arrested and cited for working on Sunday... in Cambridge,
wiring my landlord's garage (formally a carriage house) for lighting,
in exchange for a month's rent.

Amazing. Truly amazing...

I think it popped up here a couple months ago, but in case you didn't see it,
this little take on HP's garage is good:
http://www.hpmuseum.org/garage/garage.htm

Possibly, but not likely... I usually don't imbibe until around 6-7 in
the evening... when I turn on O'Reilly ;-)

O'Reilly is a pretty reasonable/sane guy; not bad at all to listen to, and I
think there's more "substance" than some of the more popular guys (on both
sides... e.g., Rush Limbaugh or Al Frankin... And whereas O'Reilly was
willing to go on Stephen Colbert's show, I can't imagine Rush would visit,
say, John Stewart...)

Hmmmm? I suppose I could release a CD/DVD of schematics, with
explanations...

Absolutely, I'd certainly buy a copy.

---Joel

 

[Kral]

On Oct 29, 7:09 am, Raveninghorde <raveninghorde@invalid> wrote:

One of my chaps is off to do his PhD, which means he will know a lot
about nothing.

He asked me the other day if reversing the 24V AC power supply to a
board had caused damage to an elctrolytic capacitor.  I don't think
you have to know the circuit to answer the question.

Talk about not understanding what he knows.

Intellectual:
A man who takes more words than necessary to tell more than he knows.
Dwight D Eisenhower

Could also apply to PHDs

 

[daestrom]

Josepi wrote:

Ten years from batteries? Not if you actually used them and didn't just
keep them on float.

I have heard this story over and over from manufacturers but I have not
heard of anybody, actually using their batteries and discharging them each
night to a resonable level, that gets more than a few years of dependable
usage out of them.

The solar savings would never pay for the batteries, compared to bulk
manufactured energy

Well, these aren't exactly 'cheap', but are guaranteed for 3300 cycles.

If you discharge/charge about 1/2 a cycle per day and immediately
recharged it, that 'should' last 6600 days that would be 18 years.

Problem is, solar applications are more like discharge 30%, wait 8
hours, charge 20%, discharge another 30%, wait 8 hours charge 25%, etc...

That kind of 'cycle' is pretty hard on any battery.

http://www.affordable-solar.com/surrette.battery.2v.1700.ah.2-ks-33ps.htm

daestrom

 

[Jim Thompson]

On Fri, 30 Oct 2009 11:35:10 -0700, "Joel Koltner"
<zapwireDASHgroups@yahoo.com> wrote:

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote in
message
I was also arrested and cited for working on Sunday... in Cambridge,
wiring my landlord's garage (formally a carriage house) for lighting,
in exchange for a month's rent.

Amazing. Truly amazing...

I think it popped up here a couple months ago, but in case you didn't see it,
this little take on HP's garage is good:
http://www.hpmuseum.org/garage/garage.htm

Possibly, but not likely... I usually don't imbibe until around 6-7 in
the evening... when I turn on O'Reilly ;-)

O'Reilly is a pretty reasonable/sane guy; not bad at all to listen to, and I
think there's more "substance" than some of the more popular guys (on both
sides... e.g., Rush Limbaugh or Al Frankin... And whereas O'Reilly was
willing to go on Stephen Colbert's show, I can't imagine Rush would visit,
say, John Stewart...)

O'Reilly appeared on "The View" today... hilarious, costumed as Count
Dracula ;-)

Hmmmm? I suppose I could release a CD/DVD of schematics, with
explanations...

Absolutely, I'd certainly buy a copy.

---Joel

How much $

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I used to do ASIC designs using only pencil paper and a slide rule
I never even had a calculator until I was 33 years old

 

On Fri, 30 Oct 2009 16:28:21 -0400, daestrom <daestrom@twcny.rr.com>
wrote:

Josepi wrote:
Ten years from batteries? Not if you actually used them and didn't just
keep them on float.

I have heard this story over and over from manufacturers but I have not
heard of anybody, actually using their batteries and discharging them each
night to a resonable level, that gets more than a few years of dependable
usage out of them.

The solar savings would never pay for the batteries, compared to bulk
manufactured energy

Well, these aren't exactly 'cheap', but are guaranteed for 3300 cycles.

http://www.affordable-solar.com/surrette.battery.2v.1700.ah.2-ks-33ps.htm

If you discharge/charge about 1/2 a cycle per day and immediately
recharged it, that 'should' last 6600 days that would be 18 years.

Problem is, solar applications are more like discharge 30%, wait 8
hours, charge 20%, discharge another 30%, wait 8 hours charge 25%, etc...

That scenario should only be happening during multiple-day dark
periods. For typical installations, the rest of the time the routine
discharge should be less. To make the math easy, figure 4 days supply
and 20% reserve. Which makes a sunny day's dark-period discharge
perhaps half of a day's consumption - 10%, then back to full by early
afternoon. It depends on the owner's habits though. If they tend to
leave early for work and arrive home late, and had no daytime loads,
then most or perhaps all the consumption might make a trip through the
batteries. Then I could see how it could come close to your scenario,
in winter at least.

That kind of 'cycle' is pretty hard on any battery.

I think that's what's worse are setups where the batteries get
deep-discharged, and then on the first sunny day it's charge back to
50%, discharge back to 30, charge to 60, back to 40 etc. I've seen
that scenario a lot, and when you combine it with (most) owners who
don't have a convenient way to gauge battery charge level, it's easy
to see how some installations have short-lived batteries. I really
lean on people to get and use battery meters. Then they can see right
away if their full-charges are too infrequent.

Wayne

 

[Tim Williams]

On Oct 29, 1:25 pm, Joerg <inva...@invalid.invalid> wrote:

One of the huge mistakes in academia. Right up there with universities
and colleges not allowing practicing engineers to teach because they
don't have the "proper credentials".

Ah, there are a number of professionals here, actually, at Milwaukee
School of Engineering. Freshmen are recommended to address their
instructors "Professor" when in doubt, as they aren't necessarily
Doctors.

Still, you have to weigh the fact that those are the people willing to
teach instead of only work, so maybe it's not as good as it
sounds. ;-)

Tim

 

[Tim Williams]

On Oct 29, 6:47 pm, Ian Bell <ruffreco...@yahoo.com> wrote:

Is it me or was it only 'in the old days' that people went into
electronics (.i.e. got educated in it at college level) because they
were already hooked on it and had built a bunch of stuff? A friend and I
were selling crystal radios at primary school before we were eleven
years old. By the time I was 18 and went to university I had read every
electronics book in the city library, passed the Radio Amateurs Exam,
and built dozens of bits of kit. Don't kids do that any more?

Nope, they really don't.

I got to chat with the school's EE chair once. He said, about 30
years ago, people like me (kids who stuck screwdrivers into radios)
were common (he was one himself), so there was a lot of curriculum
they could test out of, or heck maybe even in those days it was just
"you know ohm's law? sure, you can skip this prerequisite".

But nowadays, that's a lot less common (probably less than 10%), and
the certifications are more stringent, and the bureaucracy more
impersonal, so I'm doomed to sit in classes alongside students who
don't know the right end of the soldering iron.

Not that the classes are very useful anyway. I'm in a control systems
class right now. I still don't know what the hell 1/(s+2) is. I know
full well what 1 / (s + 1/RC) is, but see, that's not what they
teach. It's just more numbers, run the algebra and find the answer.
Who cares which way it goes with respect to something like frequency.
Academia is all about abstraction, because it's an escape from
reality, and algorism (Laplace transforms, etc.) because it's easy.
No one teaches practical stuff, and no one teaches the holistic point
of view.

Tim

 

[Josepi]

Yup when the battery meter says dead for the whole of December 'cause the
sun has been cancelled my batteries are really gonna' last for 20 years,
like yours do (try to convince us you are real).

Let's face it, you think you are gifted in the alternative energy department
and in a few other ways. We doubt you would be able to get away with your
bullshit in a real environment where you have to actually provide energy to
live from and not just play Superman online.

<wmbjkREMOVE@citlink.net> wrote in message
news:tr1ne5lp47ijkpekt61issdb57oqjoho4v@4ax.com...

I think that's what's worse are setups where the batteries get
deep-discharged, and then on the first sunny day it's charge back to
50%, discharge back to 30, charge to 60, back to 40 etc. I've seen
that scenario a lot, and when you combine it with (most) owners who
don't have a convenient way to gauge battery charge level, it's easy
to see how some installations have short-lived batteries. I really
lean on people to get and use battery meters. Then they can see right
away if their full-charges are too infrequent.

Wayne

On Fri, 30 Oct 2009 16:28:21 -0400, daestrom <daestrom@twcny.rr.com wrote:
That kind of 'cycle' is pretty hard on any battery.

 

Josepi wrote:

Yup when the battery meter says dead for the whole of December 'cause the
sun has been cancelled my batteries are really gonna' last for 20 years,
like yours do (try to convince us you are real).

Let's face it, you think you are gifted in the alternative energy department
and in a few other ways. We doubt you would be able to get away with your
bullshit in a real environment where you have to actually provide energy to
live from and not just play Superman online.

Most anyone with a serious pv setup have a back up genny to recharge
batteries in time of low sunshine, so your argument is pretty much
bull...........