Re: [EVDL] EVLN: Tesla cuts 3 major departments

[David Heacock via EV]

 I think you left out the end of democracy, all the democrats jailed and 
executed, the end of the earth because climate will destroy us all, etc, etc.  
Is anyone out there comparing how our country was doing under Trump compared to 
our current situation where the terrorists are now taking over our college 
campuses and over 2 million illegals have entered our country and we have no 
idea where they are or what they are up to, to say nothing about the 10 million 
we know about who will soon be made voters for the democratic party?  Maybe you 
are good with $15 sandwiches and $5 gas but i kind of like the good old days 
four years ago when someone in the government actually cared about Americans.  
P.S. if you actually think Biden is running the country I have a bridge to sell 
you.  EVs are coming regardless of who is in charge because there are 
compelling reasons for buying them.  But when the government decides what kind 
of vehicle you are going to buy, where you kids must go to school, and destroys 
small business we are all going to suffer more than we do now and you doin't 
have a democracy.  Have a nice day.    
On Monday, May 6, 2024 at 08:41:09 PM PDT, John Lussmyer via EV 
 wrote:  
 
 On 5/6/2024 8:35 PM, David Heacock via EV wrote:
>  Let's make Elon the Vice President under Trump and have him in charge of 
>eliminating waste in our government. Can you even imagine how our country 
>would benefit?  Just give him two years.  Just sayin.
>
No Social Security, Medicare, Medicaid, Food Stamps, Health care, EPA, 
Consumer Protection - or any other thing that directly benefits 
individual citizens.


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Re: [EVDL] EVLN: Tesla cuts 3 major departments

[David Heacock via EV]

 Let's make Elon the Vice President under Trump and have him in charge of 
eliminating waste in our government. Can you even imagine how our country would 
benefit?  Just give him two years.  Just sayin.  
On Monday, May 6, 2024 at 11:57:20 AM PDT, Rush via EV  
wrote:  
 
 I highly recommend that everybody see Munro's new utube video entitled
'Sandy's take on the Tesla Layoffs!'
https://www.youtube.com/watch?v=zl4VjvZu5os

Rush Dougherty
TucsonEV



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Re: [EVDL] I destroyed an A123 26650 by shorting to the case.

[David Heacock via EV]

 Well I think I can do you all one better, or worse as the case may be.  I had 
eight A123 86 volt, 5 kWh battery modules in my electric conversion and managed 
to accidentally leave the key turned on overnight.  Result, at least four of 
the modules developed one parallel cell group of three cells that would not 
come back when charging the pack.  The modules are made up of 78 pouch cells 
divided into 26s3p.
So after weeks of therapy, I started wondering what I could do with all these 
modules and cells.  My question is, has anyone ever tried to rebuild or replace 
pouch cells in A123 modules?  The cells seem to be welded in some areas with 
metal connections that might be crimped to the taps on the individual cells.  
Any and all comments appreciated.  David  
On Tuesday, November 28, 2023 at 06:17:20 AM PST, Bill Dube via EV 
 wrote:  
 
 The A123 26650 M1-B cells will throw over 200 amps to a short circuit. 
Considerably more if they are at optimum temperature. :-)

The short circuit current will actually go up as the cell heats up. This 
assumes that whatever caused the short hasn't vaporized

These are _very_ well designed cells. They will last over 10,000 cycles 
BTW. 100% discharge and charge at 1C rate, 20 Celsius, and retain more 
than 50% of the original capacity. No Joke.

Bill D.

On 11/28/2023 6:15 PM, Cor van de Water via EV wrote:
> Lawrence, when I removed some of the cells from that pack that you picked
> up, I cut the straps with heavy duty scissors.
> One time I accidentally shorted the cell I was removing while cutting and
> the current was large enough to bite a chunk out of the scissor blades...
> These are *very* low resistance cells, so the short circuit current
> consequently is very high, even at the low 3.5V of a single cell.
> Cor.
>
> On Mon, Nov 27, 2023, 9:06 PM Lawrence Rhodes via EV 
> wrote:
>
>> https://youtu.be/zEXx_2Caefc?si=j66-Advfy42A7-Aq I wasn't too careful
>> separating some cells. Nicked a few. Used in flashlights they are awesome.
>> However,  I nicked a few near the base and my hacked flashlight spring
>> shorted the cell. Smoke and brown fluid.  Oops. I will tape nicks and avoid
>> making them in the future. Also use an adapter of pvc for extra safety.
>> Lawrence Rhodes
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Re: [EVDL] Right to Repair Tesla vs Aptera

[David Heacock via EV]

 Thanks for the great idea, I sometimes don't think of the simple approach.  I 
will just place the link in a short note and if someone is interested they can 
use the link.  Maybe it will result in more discussions in both directions.  
Ambassador is just a term for an unpaid fan of Aptera who has volunteered to 
spread the word and believes in the concept and the vehicle.  I am an investor 
but understand how hard it is to bring a new vehicle to market and have it 
accepted.  I have never actually had a ride in the Aptera but have followed 
them for many years and review the technical issues as much as possible.  
On Thursday, September 21, 2023 at 10:08:27 AM PDT, EV List Lackey via EV 
 wrote:  
 
 On 21 Sep 2023 at 3:13, David Heacock via EV wrote:

> being an Ambassador for Aptera I was wondering if anyone would object
> to sharing this information with Aptera and other Ambassadors? 

I expect that if someone who's posted doesn't want to be quoted, he'll let 
you know, and you'll respect those wishes.  

That said,  the list is archived here:

http://evdl.org/archive/

The archive is open for readinhg.  That's the fundamental nature of the 
internet.  

BTW, "ambassador" is an interesting term in this context.

David Roden, EVDL moderator & general lackey

To reach me, don't reply to this message; I won't get it.  Use my 
offlist address here : http://evdl.org/help/index.html#supt

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 

    I LIKE paying taxes.  With them, I buy civilization. 

                              -- Oliver Wendell Holmes
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 

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Re: [EVDL] Right to Repair Tesla vs Aptera

[David Heacock via EV]

 I should probably clarify what I meant by early Apple computers.  I knew about 
those computers before the Mac 128, 512 and the SE and not being a computer 
person I didn't figure I was going to try to use the earlier ones for a 
business purpose.  However, when the Mac 128 came along I bought one and had a 
small side business that involved predictive maintenance and it was pretty easy 
to build sheets that not only included data but also diagrams.  If I remember 
correctly the 128 was about $2000 at the time and basically crashed after a 
short period of time but Apple offered to replace it with the 512.  While that 
was a lot of money for me at the time I figured I could pay for it with the 
side business income.  Looking on Ebay maybe I should have kept my SE in a box 
for sale today.  
There are a lot of great comments here about right to repair and being an 
Ambassador for Aptera I was wondering if anyone would object to sharing this 
information with Aptera and other Ambassadors?  While their Launch Edition is 
pretty well developed I think these comments would be appreciated as they 
develop and produce their first vehicles.  
On Wednesday, September 20, 2023 at 09:46:35 AM PDT, (-Phil-) via EV 
 wrote:  
 
 I've noticed there are 2 camps:  One side who views a car as an appliance
to get from A to B, and the other side who is either an enthusiast, and/or
views cars as status symbols.  My father is in the first camp.  I'm
somewhere in the middle, but I love technology and engineering.  My father
buys base model Toyotas, because they are reliable and get him from A to B
with little fanfare.  I enjoy a car with good performance and handling,
and enjoy features such as Tesla Autopilot (on the highway).  It has to be
reliable, but I will spend more to have those things.

Sadly there is little profit in selling cars to the A-B crowd, so
manufacturers concentrate on the other side mainly.  Lots of tech,
features, and now the trend is large touchscreens.  This is even slowly
trickling down to the A-B cars too.

I also disdain the loss of Privacy, but all my Teslas have been rooted and
I removed all the upstream logging.  Of course even with that I am still
fighting a losing battle.  My city recently installed ALPR (License Plate)
cameras at all roads into the city, so now everyone is tracked and put into
a privately-owned national database with no oversight.  I attempted to
raise objections, but the majority of sheeple in my town are glad that
these cameras are in because they "aren't doing anything wrong" and it may
help the cops catch criminals that devalue their property.

On Wed, Sep 20, 2023 at 9:32 AM Lee Hart via EV  wrote:

> David Heacock via EV wrote:
> > ...Tesla seems to think they own the vehicle even after they sell it to
> the customer.
> > ...a lot of talk about customer right to repair [but then block their
> ability to do so]
>
> It isn't just Tesla. All manufacturers are doing it. This just
> illustrates the tactics of modern marketing.
>
> - Counteract negative perceptions by loudly advertising the opposite.
>        (Ads show SUVs off-road when in fact they are inept at it)
> - Badly-designed complex solutions are quicker and cheaper to design
> than well-thought-out simple ones.
>        (Ford F-150 tail lights that cost $5000 to replace because it's a
> sealed assembly that includes computer modules, backup camera, etc.)
> - Customer service is expensive; so avoid it as much as possible.
>        ("Your call is important to us"; then they put you on hold for an
> hour)
> - Planned obsolescence.
>        (Rather than fix things, encourage customers to throw it out and
> buy
> another)
>
> > I was an early adopter of Apple computers and in the old days I always
> felt if you couldn't figure out how to use the computer for most of what it
> was capable of doing without reading the documentation it really wasn't
> what I wanted.
>
> That statement is a bit hard to understand. The early microcomputers I
> used (Apple II, Heathkit, Commodore, Atari) came with a *huge* amount of
> documentation that worked hard to explain how it worked. That was
> necessary because most people had little or no knowledge with computers.
>
> They also went out of their way to encourage the user to improve it and
> write their own programs. They were the equivalent of a Ford model T
> that came with a shop manual and a tool kit so you could fix it yourself.
>
> Today's cars are the complete opposite. They do everything possible to
> prevent you from understanding it or repairing it yourself.
>
> Lee
>
> --
> Results! Why man, I have gotten a lot of results. I have found
> several thousand things that won't work. -- Thomas A. Edison
> --
> Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com
>
> --
> This email has b

[EVDL] Right to Repair Tesla vs Aptera

[David Heacock via EV]

Seems like there are discussions on who actually owns a Tesla and it reminded 
me of something Jack Rickard of EVTV said may years ago and he was a big Tesla 
fan.  I think it was something to the effect that Tesla seems to think they own 
the vehicle even after they sell it to the customer.  If I remember correctly 
Tesla was doing a lot of talking about customer right to repair, well I guess 
as long as you follow the rules and pay for the documentation?  Just to be 
clear, I have nothing against Tesla and believe they did get the EV ball 
rolling.
Now Aptera is also talking about right to repair.  They are claiming if you 
have a problem you will be able to contact Aptera, determine what the problem 
is and if necessary a replacement part will be shipped within 24 hours. You 
will also get the documentation on how to do the repair.  You can then either 
do the repair yourself or have a local shop do the repair.  Well Aptera just 
had their first real crash test, with a BMW no less, where the wheel cover was 
destroyed.  The picture looks like a simple fix but so far I have not heard if 
anything else was damaged.  But consider the same impact to the side of a Tesla 
and the time and cost involved to repair it.
I was an early adopter of Apple computers and in the old days I always felt if 
you couldn't figure out how to use the computer for most of what it was capable 
of doing without reading the documentation it really wasn't what I wanted. 
Todays EVs are supposed to make life easier and actually give you more time to 
do other things.  With all the technology now part of EVs it seems you really 
need to take a course in how to use the vehicle and I guess some people are 
making money on teaching Tesla owners how to get the most out of their 
vehicles.  Really?   

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[EVDL] EV Distance Record Smashed

[David Heacock via EV]

Yes I know this is a very controlled situation and is not a vehicle that would 
be purchased by the public but taking a look at the numbers and doing some 
comparison with say the Aptera one might think the concept is promising.  
Efficiency is a key component, same general shape, drag coefficient of 0.159 
(Aptera computer modeling at 0.13), 103.2 miles / kWh (Aptera estimated at only 
10 miles/kWh), Hyundai Ioniq 6 and Lucid Air at 4.2 miles/kWh in production.  
You would think that OEMs could come up with something that gets better than 5 
miles/kWh and is reasonably priced? 
This EV smashed the world record for distance on a single charge


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This EV smashed the world record for distance on a single charge

At 103 miles/kWh, the car is 25 times more efficient than any EV on sale.
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Re: [EVDL] (EVDL)EV charging is changing

[David Heacock via EV]

 
it takes Aptera to get to production the more it becomes an issue.  But I also 
feel it is a good idea and hope I get one.
There are a lot of videos out there and I would recommend watching the good and 
the bad with an open mind.  The future of EVs may well be a lot different than 
it currently seems.  
Cheers.     
On Friday, September 8, 2023 at 06:59:01 PM PDT, EV List Lackey via EV 
 wrote:  
 
 As I said before, raising efficiency rather than jamming in a monster 
battery is a Good Thing. If we can believe the claims for Aptera, in that 
respect it's on the right track.  

I want to see the EPA/WLTP numbers, but I can sort of believe that it could 
manage 100 wh/mi.  The humble 1992 Solectria Force, a well-designed Geo 
Metro conversion, managed 150 wh/mi, though not on the highway.  

On 8 Sep 2023 at 0:28, David Heacock via EV wrote:

> it is classified as an autocycle which has features such as three
> wheels, a steering wheel and the driver is enclosed.   

Maybe it's just quibbling, but I saw a photo (rendering?) of the interior 
and I wouldn't call that weird D-shaped thing a steering wheel.  Nor would I 
want to use it.  Maybe others would be fine with it.

> I would feel much safer driving an Aptera, especially because of the
> way the frame and body are made. 

Maybe you'd *feel* safer, but would you really be?  I'm not an engineer, but 
everything I've read says that it's a challenge to design a stable 3-wheel 
vehicle.  

http://www.evdl.org/docs/ev_expo_80_8039_3-wheel_stability.pdf

The Corbin Sparrow had some fairly serious stability problems, especially if 
the battery mass was changed or moved.  

What has Aptera done for improved stability?

> A number of comments have mentioned the limited amount of space inside
> the vehicle but there are references to the Aptera having 60% more
> storage space than a Honda Accord and 20% more than a Toyota Prius.   

Now hold on.  Are they comparing space behind the seats?  To make this fair, 
they should fold down the back seats in the Accord and Prius so they're also 
2-seat cars.

I don't know how they'd fare that way, but I can tell you that Aptera's 
specs claim 32.5 cu ft of cargo space - 920 liters.  If we make our Renault 
Zoe into a 2-seater, we have 1,225 liters of cargo space - about 1/3 more.

And that's in a smaller exterior than the Aptera's.  The Aptera is 455cm 
long and 223cm wide.  That strikes me as an awfully big footprint for a 2-
seat car.

It's wider than a Tesla Model 3, which is classified as a large car in 
Europe.  Thus there are places an Aptera can't go.  For example, it's 3cm 
too wide to fit through the alley leading to my garage.

> I think the more reasonable consideration would not be the storage
> space, but the fact that it is a two seater.   

I agree.  That makes it a specialty vehicle and limits its sales potential.  
Ask Honda why they dropped the CRX, and why they turned the Insight into a 
bland 5-seat family car.  

> when you consider a lot of people commute to work alone this might
> make a great second vehicle 

And not so good for taking the kids out for ice cream or picking up a couple 
of friends at the airport.  I'm thinking 3rd or 4th vehicle, not second, but 
that's me.

> A lot of discussion about how practical solar is for the Aptera ...

Most of it here has had to do with PV efficiency and square area.  

Thing is, without tracking, it will only hit peak power at noon, and only in 
the summer.

Winter will cut the energy harvest.  So will a cloudy place like Seattle.  
Tall city buildings will shade it.  You can't put it in the garage and still 
solar-charge it.

What will it cost to replace the PV if it's in a wreck?  Someone mentioned 
vandalism, and I don't think you can dismiss that as the coal-rolling crowd 
cranks up the violence.  Both of these lead to higher insurance costs.  

What I'm driving at: I can't think of a case where it doesn't make more 
sense to put PV on your roof instead of on your car.

> As far as a market for this vehicle, Aptera thinks there may be a
> market of 600,000 vehicles per year 

Sorry, that's an investor pitch, not a realistic sales estimate.

A Mazda Miata is also a 2-seater.  Its base price is pretty close - about 
$28,000.  Last year Mazda moved 10,547.  In its best year, 1990, Mazda sold 
just under 36,000 Miatas.  

So, 600,000 Apteras per year?  I don't think so.  Maybe 6,000 if they're 
lucky.

> From my perspective new EV startups have often failed not because of
> lack of demand but because of lack of supply and the money to make the
> vehicles.   

I'd be interested in hearing where you saw that.  I've been watching the EV 
world since 1967, and the many failures I've seen have involved lack of 
demand.  

There just weren't a lot of buyers lining up for a EV that did less than an 
equivalent ICEV, but cost more.  Sure the EV is cleaner, but very few people 
care.

Don't forget the competition.  The

Re: [EVDL] (EVDL)EV charging is changing

[David Heacock via EV]

 Seems like a lot of comments about the Aptera so first I would say the Aptera 
is not a motorcycle, it is classified as an autocycle which has features such 
as three wheels, a steering wheel and the driver is enclosed.  It is probably 
true that in many states it is considered as a motorcycle for registration and 
insurance purposes but having ridden a two wheel motorcycle in my younger days 
I'm pretty sure I would feel much safer driving an Aptera, especially because 
of the way the frame and body are made.  
A number of comments have mentioned the limited amount of space inside the 
vehicle but there are references to the Aptera having 60% more storage space 
than a Honda Accord and 20% more than a Toyota Prius.  The actual space from 
one reference is 25 cubic feet and doing some simple math from a 2020 Honda 
Accord the Aptera has only 50% more space.  As pointed out there are videos of 
placing a bicycle, surf boards, skis, a ladder and two people laying down 
inside the Aptera.   I think the more reasonable consideration would not be the 
storage space, but the fact that it is a two seater.  Openly the developers 
have stated a two seater is not for everyone but when you consider a lot of 
people commute to work alone this might make a great second vehicle, and with 
gas now being about $5 per gallon, an efficient EV might just be the way to go. 
   
A lot of discussion about how practical solar is for the Aptera.  There seems 
to be some confusion about the efficiency of a solar cell and the amount of 
watts a solar array might put out.  Solar cell efficiency and watts produced 
are not really directly related-i.e. you don't multiply the efficiency by the 
maximum rated watts to get the actual output.  Solar cell efficiency is defined 
as the maximum output power divided by the input power, measured in percentage. 
 Today efficiencies might range from about 17%-23% on average.  This just means 
the energy produced by the cell is maybe only 20% of the energy coming into the 
cell from the sun or other light source.  When talking about solar arrays or 
panels they are usually rated in watts.  If you spend $900 extra when 
purchasing the Aptera you will get a full array of solar cells and the total 
maximum watts is estimated to be 700.  To get the 40 miles of range from this 
array it was calculated that the array produced the maximum 700 watts for 
approximately 5.7 hours so you would get approximately 4000 watt hours or 4 
kWh.  IF the Aptera can achieve 10 miles per kWh then 4 kWh will provide 40 
miles of range.  HOWEVER, as they say in investing, results will vary and I for 
one would never expect to get the maximum output of a solar array over almost 6 
hours.  And depending on where you live, again, the results will vary. But, 
just for laughs, say you were able to get an average of only 300 watts for 5 
hours while your vehicle is sitting in an open parking lot at work in 
California, you might get 1.5 kWh which then would mean an additional 15 miles 
of range.  Keep in mind this only works if the vehicle is very efficient in the 
use of energy. It would not work on an EV that weighs 2 tons and has a drag 
coefficient of 2.0 or greater.  Also consider what happens if the efficiency of 
the cells increases just 10-20% in the future.  Yes Aptera may have over 
estimated the range from solar but it seems like there are more than a few 
people who are asking why they are not getting the range they expected from 
their Teslas.  It is all about education and understanding of EVs.   
As far as a market for this vehicle, Aptera thinks there may be a market of 
600,000 vehicles per year which they break down on the web site into such areas 
as 2 passenger car drivers -140,000, efficient commuters-140,000 and 
environmental adopters-120,000 plus others.  They currently have about 44,000 
people who have put down a deposit for a chance to get one.  When the Prius 
first came out a lot of people bought them just to say they were green and 
saving the planet and actually parked them in their driveways just to show 
their neighbors they cared.  Not exactly rational thinking from my point of 
view.  It is a different looking vehicle but from my experience with my 1985 
electric Avanti I get more interest than the Tesla parked next to it and when 
the vehicle first came out people either loved the design or hated it.  Aptera 
is a forward looking vehicle and is not for everyone but the question is can 
they sell enough of them to be profitable?  From my perspective new EV startups 
have often failed not because of lack of demand but because of lack of supply 
and the money to make the vehicles.  As far as leaving the vehicle outside 
being a problem I can't see why that would be any more of an issue that if you 
had a BMW, Mercedes, a Tesla or some other expensive car being left outside 
which I see all the time.
If you have the time, take a look at the people who are working for and 
investing in Aptera. 

[EVDL] (EVDL)EV charging is changing

[David Heacock via EV]

It is interesting to note in all this discussion of charging that Aptera, long 
before the OEMs decided to go with the Tesla plug, actually submitted a 
petition for adoption of the Tesla plug nationwide.  Of course, most people 
thought that was a stupid idea and figured it would never happen.  However, 
Aptera did decide to use the plug for their vehicles when they come to 
production.  

In an effort to increase the range of EVs most companies adopted the plan of 
just installing a bigger battery pack which increased weight and most likely 
decreased overall efficiency.  The result is naturally longer charging times 
and efforts to increase the capacity of the charging units themselves.  Aptera 
has taken a different approach by building a very efficient design so that a 
smaller battery pack is needed to actually get a greater range.  And go figure, 
the smaller battery pack takes less time to charge.  While most OEMs are 
looking at maybe 3-5 miles per kWh, Aptera is shooting for 10 miles per kWh.  

Since the average driving range per day is less than 40 or 50 miles the 
question becomes why would most people even need to stop and fast charge when 
they can simply plug in at home at night when the electric rates may be much 
lower and have a fully charged EV the next morning. Obviously there are people 
who don’t have access to chargers in apartments and such but might  have access 
to 115 volt outlets at work or at an apartment complex.  I leased a 2013 Nissan 
Leaf for three years and for the first two years I simply plugged it into a 115 
outlet in my garage.  Of course I was retired at the time and didn’t drive much 
per day but again a lot of people don’t drive all that far to work and back.  
But what about not needing to charge at all for most of the time using solar?  
Well Aptera is trying to solve that problem also with solar on the vehicle 
itself so that when the vehicle is parked at work you can actually add range 
for your trip home.  If Aptera can realize a range of 10 miles per kWh then it 
will not take much solar to provide maybe 20 miles or so per day which is 
probably more than enough for most commutes. There are some here that say that 
is not possible but again, at one point not so long ago, adoption of the Tesla 
plug was a stupid idea as was Amazon.  

To be honest I am a supporter of Aptera and have an order in for one.  Might 
not happen, but then again…….  
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[EVDL] Aptera Accelerator Program

[David Heacock via EV]

From my last post I guess I can not copy and paste an address so I will type it 
here to see what happens.  For the Accelerator Program   Accelerate | Aptera

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Accelerate | Aptera

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[EVDL] Aptera Accelerator Program / Video

[David Heacock via EV]

As an unpaid Ambassador for Aptera, just someone who believes in this vehicle 
and the core principle of efficiency, I wanted to mention they currently have 
about 44,000 pre-orders.  However, If you are an accredited investor you can 
invest at least $10,000 and get on the list to be for one the first 2000 Launch 
vehicles.  These vehicles will be a special edition and will have three wheel 
motors and the 400 mile range battery.  To learn more about the Accelerator 
Program visit Accelerate | Aptera     

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For an overall recent discussion of what the Aptera vehicle is you might enjoy 
this video Tesla's Influence Inspires Record-Breaking EV

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Tesla's Influence Inspires Record-Breaking EV


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Re: [EVDL] Cell Tower Interference

[David Heacock via EV]

 Wow, a lot of good information and help.  Makes me think I might be able to 
solve the problem.  I replied to all and it looks like this is going to the 
Discussion List.  
I'll need to read over the information and let everyone know.  I just went over 
to the tower location this morning and left my cell phone at home.  Same result 
but at least we may have eliminated that potential issue.  
Sorry I did not say where I was located.  I live in Fairfield CA between San 
Francisco and Sacramento.  If anyone lives in the area I would be more than 
happy to have them come over, if nothing else but to make sure I am not crazy 
about this issue.  
I have been thinking it has something to do with the throttle also so these 
comments really help.  The throttle is I think a five or six wire Prius 
throttle with two wipers, two grounds and one or two 5 volt wires if I remember 
correctly.  From the pedal the wires are covered with a shielding material out 
to a point about 2 feet of the controller where I had to add additional wiring 
to make it long enough to fit.  At one point I wrapped the exposed wires with 
tin foil and grounded the foil.  I also have installed a lot of ferrite beads 
close to the controller and the UQM inverter as someone had suggested a couple 
of months ago.  I could possibility re-route the wiring from the peddle and do 
some of the other things recommended here.  I'll try anything at this point.
Interesting comment about the AM radio because when I was driving it in the 
downtown area I had it almost quit again in one specific area and since that 
time I have noticed that the radio on our 2007 Saturn Vue has issues in the 
same area and I think it is tuned to an AM station.  I don't have a radio in 
the Avanti. 
I will read over all the suggestions and start trying some things.  Thanks so 
very much to those who have commented.  If you all have any questions please 
let me know.  David    
On Saturday, June 24, 2023 at 10:13:59 AM PDT, Lee Hart via EV 
 wrote:  
 
 Bill Dube via EV wrote:
> I agree with Phil.
> 
> I also doubt that cell towers are the root cause of your issue.

I agree; cell phones operate at GHz frequencies, which is highly 
unlikely to affect any EV electronics.

However, wherever they put cell towers, they may also put *other* radio 
services. There's a city water tower near us, and it literally bristles 
with dozens of radio antennas; police, fire, FM radio stations, etc. 
They operate at lower frequencies and higher power levels, which *may* 
get into your EV wiring.

> The problem is likely due to the motor wiring and other power wiring not 
> kept separate/distant from the throttle wiring. The throttle wiring 
> needs to be a small, shielded, 3-wire cable, kept very distant from any 
> battery or motor cables.
> 
> Additionally, the motor cables need to be kept very close to one 
> another, and the battery cables need to travel in pairs that are also 
> kept close to one another. Every battery cable that emerges from a 
> battery module needs to be paired tightly with the opposite polarity 
> battery cable carrying the return current.

That's all good advice. When this can't be done (for instance the wiring 
between cells inside a battery box), then the box itself should be 
metal, or have some kind of shielding (even grounded aluminum foil will 
work).

A portable AM radio is an easy way to "sniff" for RF noise. Tune the 
radio between stations, and turn up the volume. If something is emitting 
broadband RF noise, it's likely to interfere with AM radio.

Lee

-- 
Whatever the problem, be part of the solution. Don’t just sit
around raising questions and pointing out obstacles. -- Tina Fey
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com

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[EVDL] Cell Tower Interference

[David Heacock via EV]

I have converted a 1985 Avanti to an EV and with the current LFP battery pack I 
have a reasonable range of about 100 miles.  Everything works well with 
different components from different sources.  However, one problem I have yet 
to resolve is what appears to be interference from Cell towers which basically 
seems to cut out the throttle and at slow speeds can actually cause the vehicle 
to shut off and then come back on as the car moves relative to the cell tower 
position.  I have contacted a number of people and suppliers about the issue 
and tried a number of things to provide RF protection but have not been able to 
solve the problem.   Has anyone ever experienced this issue and a possible 
solution?
David Heacock
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