EV Digest 6223
Topics covered in this issue include:
1) Re: [BULK] RE: If I only need a 5 mile range ... really
by "Roderick Wilde" <[EMAIL PROTECTED]>
2) Re: Battery Question
by Jeff Shanab <[EMAIL PROTECTED]>
3) Etek problems
by "Brian D. Hall" <[EMAIL PROTECTED]>
4) Re: What does it take to upgrade a Curtis controller?
by "Lawrence Rhodes" <[EMAIL PROTECTED]>
5) NiMH Battery on eBay
by [EMAIL PROTECTED]
6) Re: [BULK] RE: If I only need a 5 mile range ... really
by "Lawrence Rhodes" <[EMAIL PROTECTED]>
7) Segways in Ontario
by Lock Hughes <[EMAIL PROTECTED]>
8) Re: A123 EV pack (was Re: Lithium-ion batteries & Valence Group buy)
by "Adan Vielma" <[EMAIL PROTECTED]>
9) Re: A123 EV pack (was Re: Lithium-ion batteries & Valence Group buy)
by "Kaido Kert" <[EMAIL PROTECTED]>
10) RE: A123 EV pack (was Re: Lithium-ion batteries & Valence Group b
uy)
by Cor van de Water <[EMAIL PROTECTED]>
11) Re: A123 EV pack (was Re: Lithium-ion batteries & Valence Group buy)
by Doug Weathers <[EMAIL PROTECTED]>
12) Re: Lithium-ion batteries & Valence Group buy
by chris <[EMAIL PROTECTED]>
13) Re: Used Batteries WAS Re: [BULK] RE: If I only need a 5 mile range ...
rea...
by [EMAIL PROTECTED]
14) RE: NiMH Battery on eBay
by Cor van de Water <[EMAIL PROTECTED]>
15) RE: A123 EV pack (was Re: Lithium-ion batteries & Valence Group b
uy)
by Cor van de Water <[EMAIL PROTECTED]>
16) RE: NiMH Battery on eBay
by "EVdave" <[EMAIL PROTECTED]>
17) RE: NiMH Battery on eBay
by "EVdave" <[EMAIL PROTECTED]>
18) Re: What does it take to upgrade a Curtis controller?
by Lee Hart <[EMAIL PROTECTED]>
19) Re: Used Batteries WAS Re: [BULK] RE: If I only need a 5 mile range ...
rea...
by Steve Powers <[EMAIL PROTECTED]>
20) Re: Used Batteries WAS Re: [BULK] RE: If I only need a 5 mile range
... rea...
by Danny Miller <[EMAIL PROTECTED]>
21) Zap Xebra
by Lawrence Long <[EMAIL PROTECTED]>
22) DC/DC QUESTION
by [EMAIL PROTECTED]
23) Re: NiMH Battery Pack Proposal
by Jack Murray <[EMAIL PROTECTED]>
24) Re: Motors, motors...
by James Massey <[EMAIL PROTECTED]>
25) Re: Used Batteries WAS Re: [BULK] RE: If I only need a 5 mile range ...
rea...
by [EMAIL PROTECTED]
26) Re: NiMH Battery Pack Proposal
by "Bob Rice" <[EMAIL PROTECTED]>
--- Begin Message ---
Hi Marty,
Are you familiar with the Westcoaster Club? In another of my lives I own
another business, Vintage Golf Cart Parts, check it out at
www.vintagegolfcartparts.com My red Taylor Dunn Trident named "The Chick
Magnet" is on the home page.
Roderick Wilde
----- Original Message -----
From: "Marty Escarcega" <[EMAIL PROTECTED]>
To: "'Lawrence Rhodes'" <[EMAIL PROTECTED]>
Cc: <[email protected]>
Sent: Sunday, December 17, 2006 6:44 AM
Subject: RE: [BULK] RE: If I only need a 5 mile range ... really
Lawrence, I think many missed the point. It's the EXPERIENCE I am looking
for. I will restore the Westcoaster (not a Honda)
http://members.cox.net/escarcega-photos/Mailster/63mailster1.jpg
I will be sensitive to being able to convert it back to ICE if I choose.
I love to fabricate, and I like to document things for others, not only
pictures, but the learing experiences as well.
The minichopper has a brand new ICE. And its nearly finished. I need to
finish it up before I move on to the EV.
I did fabricate the frame myself. I feel a little more comfortable around
here tooling around in a unique vehicle with a body rather than a
motorcycle. (Been there done that, had a Harley Dyna Wide Glide).
Westcoaster is a head turner. I'll do it up right. Should be fun!
Marty
-----Original Message-----
From: Lawrence Rhodes [mailto:[EMAIL PROTECTED]
Sent: Sunday, December 17, 2006 7:29 AM
To: [email protected]
Subject: Re: [BULK] RE: If I only need a 5 mile range ... really
That glider (Minichopper) is just the kind of setup that will work well
with
electric power. With an ETEK & the right ratio & voltage that little
chopper will be a lot faster than than the Honda. You might get a 20 mile
range & I think that's about all you'd want with a hard tail like that.
Of
course if you are doing your own frame you can modify it to fit batteries
and whatnot for that perfect fit look. Taking what you have and throwing
ev
components at it isn't always the best choice. Good luck with your
projects. Like your shop. Lawrence Rhodes.......
--
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12/16/2006
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--- End Message ---
--- Begin Message ---
Another perspective. 12Volt AGMS (orbitals)
I reversed a battery 5 months ago and it got hot, It read 6Volts. I
immediately put it on a 2 amp current limited charge until it showed 11
volts then charged as normal.
I fully expected to need to replace this one but it is still going
strong. Ironically I am having difficulty with 3 other batteries having
significantly reduced capacity.
--- End Message ---
--- Begin Message ---
HI Jeff , you should turn your 400 amp controller down and gear your vehicle
lower, we also need your wheel size to tell you how much.
we also just found 60 more e-teks to sell, if you what to use two.
Brian Hall
Thunderstruck motors
Message-ID: <[EMAIL PROTECTED]>
Date: Sat, 16 Dec 2006 15:21:30 -0800
From: Jeffrey Kloth <[EMAIL PROTECTED]>
To: [email protected]
Subject: Etek problems
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Hi folks, I am new to the list and need some help. I have a fairly heavy
project motorcycle with 1 Etek and an Alltrax 4844m controller. The gearing
is front sprocket of 12 teeth and rear of 37. I realize the motor will need
to overcome stall with fair amount of amps. Right now it is taking off with
enough accelleration for me. The problem is that ever since I got the
Alltrax, I have had two failures of the same kind: The motor does not seem
to be getting hot but suddenly there is solder spitting and soon after the
little clip/bars fall off the armature. Then it is a bad day from there on.
I have had the motors apart and they survive the autopsy and look like they
can be repaired by soldering again. This part of the design seems like a
weak link in the motor so I am wondering if there is a way to beef this up?
Also, it looks like the factory balances the armature by GRINDING off some
of the clips! I guess I may have to change gearing and the Alltrax limits
to use t!
his setup for the motrorcycle. I am thinking of using two Eteks in
parallel to ease the stress. Is this a good idea? Or maybe one etek for
each "speed" via two gearings...
Thanks,
Jeffrey Kloth, Burbank, CA=============
--- End Message ---
--- Begin Message ---
It's nice to do things yourself but Golftech & now Logisystems will modify
or produce a controller for you at a reasonable price. Lawrence
Rhodes......
----- Original Message -----
From: "James Massey" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, December 16, 2006 10:59 PM
Subject: What does it take to upgrade a Curtis controller?
> G'day All
>
> I keep seeing on Ebay Curtis controllers in voltages up to 36 volt, at
400A
> or so. Assuming that Curtis only use one type of diode, would it be
> possible to upgrade (for example) a 12V 400A controller into a 120 volt,
> 400A controller?
>
> I'm guessing that it would be more likely 120 volt 275A, but the theory
> goes like this:
>
> * Cut the power feed to the control circuitry and put in a suitable DC/DC
> converter.
> * Pull all of the electrolytic capacitors in the power stage and replace
> them with ones rated to the maximum voltage likely to be encountered (this
> is where I think that the capacity will be reduced by not being able to
put
> as much capacity in).
> * Pull the fets and replace them with some of suitable ratings.
>
> What am I missing?
>
> Regards
>
> [Technik] James
>
>
>
>
--- End Message ---
--- Begin Message ---
Ran across the following....
This seems like a AWFUL amount of money ($6,500) for a 12V 125AH battery!
Matt Parkhouse
Colorado Springs, CO
BMW m/c-Golf Cart trike - 48 volts, 30mph on the flat, 35 mile range
Battery Panasonic (C-3) M-95 Rav4 EV Rav4 EV-95
You can not get a better EV-95 BATTERY anywhere
BATTERY
Manufacturer: Panasonic
Type: Nickel Metal Hydride
Weight of Module: 18.75 kg
Shipping weight 41 pounds each
Nominal Module Voltage: 12.5 V
Nominal Capacity (C/3): up to 125 Ah
Auction # 150070755901
--- End Message ---
--- Begin Message ---
Now I'm remembering the Cushman is 12 batteries or 72v. It was a factory
vehicle. It is direct drive. Lawrence Rhodes.....
----- Original Message -----
From: "Marty Escarcega" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Sunday, December 17, 2006 5:42 AM
Subject: RE: [BULK] RE: If I only need a 5 mile range ... really
> Oh, it will happen now. B-)
> I have collected the parts, all for 48 volt. ADC motor, Sevcon 500A
> controller, Deltaq charger, I got them for what I feel were a song. $650.
I
> will use the Westcoaster 3speed tranny with reverse. From what I read and
> really haven't heard otherwise, keep the clutch? The rear end is 5.38:1.
> Since the next big expense is batteries, I'm trying to figure out what I
> need, but could get by with if I find a deal on some batteries. From what
I
> read 6volt is better than 12 volt? I saw Surplus Center batteries, seem to
> be a good price, but am leary of their condition and longevity. Leans me
> towards biting the bullet and buying new. Costco has their 6volt batteries
> for $61each, though I couldn't find any specs on it. Then I hear you guys
> talking about Optima Yellow Tops...my head is spinning. :-) But at some
> point I'll just jump in! Learn with what I have and then potentially
upgrade
> later.
>
>
> ---------------------------
> Good Point! Marty wants a basic entry level EV, and has a good choice
to
> play. A golf caret Transaxle and motor shouild get him going. He might
want
> to hit somebody up, like Rod Wilde for a more powerful motor, that will
push
> the Cushman up to 40mph or so?He could live with an Altrax 400amp 72 volt
> controller,12 Sam's Klub generic Golf cart batteries A simple mechanical
> Golf Cart reverser, I think Rod offers them, too?And he lives in AZ so he
> doesn't need a fancy heater, AC might be nice, but he will survive a 5
mile
> trip with the windoz open?So, Marty, don't give up, hang in there and just
> DO IT!
> > My two watts worth.
>
> Bob
>
--- End Message ---
--- Begin Message ---
http://www.youtube.com/my_playlists?p=C63CDAF74589FA44
or tinyURL here:
http://tinyurl.com/yazydp
These three videos were shot by a crew of CBC *radio* reporters as part
of a course that gets them into television...
Their assignment, produce a segment for TV about the Segway in Ontario.
Each of the three reporters cut/edited their footage to produce three
different versions. These were never intended for TV broadcast.
Thanks
Lock Hughes
Toronto
Human/Electric Hybrid Pedestrian
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
--- End Message ---
--- Begin Message ---
What "Great New Battery" is around the corner?
-Adan
----- Original Message -----
From: "Osmo S." <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, December 16, 2006 11:06 AM
Subject: A123 EV pack (was Re: Lithium-ion batteries & Valence Group buy)
Bryan,
if you are not in a hurry, you may want to consider A123s. This is a
respond I got from them:
"We're working on several standard modules that potentially may be
applicable; however I can't project their availability at this point.
I believe there is a good opportunity that either A123, or one of our
partners, will have a pack suitable for use in EVs sometime in 2007.
Sorry I can't be more specific. I think we'll be in a better position
to forecast new products in the next few months."
But of course there is always the Great New Battery just around the
corner..
Terveisin, Osmo
Bryan kirjoitti 16.12.2006 kello 2.01:
Don,
I've been considering the Valence batteries for a while, but
have been away from the EV list for a while. After reading through
all the archived posts regarding a possible Valence group buy and
doing the math, I am seriously considering a pack of 27 of the 40Ah
U1-12XP if we could get the 50+ quantity price or better yet the
250 or 1000+ price break. From the EV list posts, however, I could
not tell whether anyone has actually begun compiling a list to
actually organize the group buy. It looks like you have been
dealing with Valence a fair amount. Have you started a list?
Thanks,
Bryan Avery
--- End Message ---
--- Begin Message ---
EEStor :) Dont ask which corner though ..
If AltairNano and Phoenix would demo their fast charge capability on
large-scale app like EV, i'd be impressed as well.
-kert
On 12/17/06, Adan Vielma <[EMAIL PROTECTED]> wrote:
What "Great New Battery" is around the corner?
-Adan
----- Original Message -----
From: "Osmo S." <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, December 16, 2006 11:06 AM
Subject: A123 EV pack (was Re: Lithium-ion batteries & Valence Group buy)
> Bryan,
>
> if you are not in a hurry, you may want to consider A123s. This is a
> respond I got from them:
>
> "We're working on several standard modules that potentially may be
> applicable; however I can't project their availability at this point.
> I believe there is a good opportunity that either A123, or one of our
> partners, will have a pack suitable for use in EVs sometime in 2007.
> Sorry I can't be more specific. I think we'll be in a better position
> to forecast new products in the next few months."
>
> But of course there is always the Great New Battery just around the
> corner..
>
> Terveisin, Osmo
>
>
>
>
> Bryan kirjoitti 16.12.2006 kello 2.01:
>
>> Don,
>> I've been considering the Valence batteries for a while, but
>> have been away from the EV list for a while. After reading through
>> all the archived posts regarding a possible Valence group buy and
>> doing the math, I am seriously considering a pack of 27 of the 40Ah
>> U1-12XP if we could get the 50+ quantity price or better yet the
>> 250 or 1000+ price break. From the EV list posts, however, I could
>> not tell whether anyone has actually begun compiling a list to
>> actually organize the group buy. It looks like you have been
>> dealing with Valence a fair amount. Have you started a list?
>> Thanks,
>> Bryan Avery
>>
--- End Message ---
--- Begin Message ---
Don't you know that battery made out of unobtanium,
that comes with an Endless Life (tm) guarantee and
which you can charge in a Jiffy from any regular wall
outlet, weight and size will favorably compare to
space-age pillows and the cost will be lower than
golf cart batteries when mass produced?
As you see - the "Great New Battery around the corner"
is often used in figurative speaking - to warn each other
for the overhyped claims of batteries due soon that we
are expected to wait for by their makers.
Well, if we want our cars to run today, we better buy today's
available and affordable and tested batteries, then when
the time comes to replace the pack, we can always see what
progress has been made and change choice...
Regards,
Cor van de Water
Systems Architect
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Proxim Wireless Networks eFAX: +1-610-423-5743
Take your network further http://www.proxim.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Adan Vielma
Sent: Sunday, December 17, 2006 12:48 PM
To: [email protected]
Subject: Re: A123 EV pack (was Re: Lithium-ion batteries & Valence Group
buy)
What "Great New Battery" is around the corner?
-Adan
----- Original Message -----
From: "Osmo S." <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Saturday, December 16, 2006 11:06 AM
Subject: A123 EV pack (was Re: Lithium-ion batteries & Valence Group buy)
> Bryan,
>
> if you are not in a hurry, you may want to consider A123s. This is a
> respond I got from them:
>
> "We're working on several standard modules that potentially may be
> applicable; however I can't project their availability at this point.
> I believe there is a good opportunity that either A123, or one of our
> partners, will have a pack suitable for use in EVs sometime in 2007.
> Sorry I can't be more specific. I think we'll be in a better position
> to forecast new products in the next few months."
>
> But of course there is always the Great New Battery just around the
> corner..
>
> Terveisin, Osmo
>
>
>
>
> Bryan kirjoitti 16.12.2006 kello 2.01:
>
>> Don,
>> I've been considering the Valence batteries for a while, but
>> have been away from the EV list for a while. After reading through
>> all the archived posts regarding a possible Valence group buy and
>> doing the math, I am seriously considering a pack of 27 of the 40Ah
>> U1-12XP if we could get the 50+ quantity price or better yet the
>> 250 or 1000+ price break. From the EV list posts, however, I could
>> not tell whether anyone has actually begun compiling a list to
>> actually organize the group buy. It looks like you have been
>> dealing with Valence a fair amount. Have you started a list?
>> Thanks,
>> Bryan Avery
>>
--- End Message ---
--- Begin Message ---
On Dec 17, 2006, at 1:47 PM, Adan Vielma wrote:
What "Great New Battery" is around the corner?
All of them.
For the last three decades or so, we've been promised that the "Great
New Battery" will soon be available for purchase, but somehow we're
still muddling through with lead-acid.
-Adan
--
Doug Weathers
Las Cruces, NM, USA
<http://learn-something.blogsite.org/>
--- End Message ---
--- Begin Message ---
Hey there,
I just joined this list yesterday and am in the beginning stages of
planning a conversion.
I'm definitely interested in Li-ion batteries - is there a group buy
being organized? How often do people do group buys on this list?
thanks
chris
--- End Message ---
--- Begin Message ---
Check out Walmart for EverStart part number MAXX-29, 120 AH 12 volt marine
battery that weighs 57 lbs for 64.96 this is the cheap battery I am going to
use in my VW Bug for now.
They are a little heavy but with that amount of amp hours I should have a
very long range in a light car.
--- End Message ---
--- Begin Message ---
Hmmm, somebody crashed their RAV4 EV?
Cor van de Water
Systems Architect
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Proxim Wireless Networks eFAX: +1-610-423-5743
Take your network further http://www.proxim.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of [EMAIL PROTECTED]
Sent: Sunday, December 17, 2006 10:55 AM
To: [email protected]
Subject: NiMH Battery on eBay
Ran across the following....
This seems like a AWFUL amount of money ($6,500) for a 12V 125AH battery!
Matt Parkhouse
Colorado Springs, CO
BMW m/c-Golf Cart trike - 48 volts, 30mph on the flat, 35 mile range
Battery Panasonic (C-3) M-95 Rav4 EV Rav4 EV-95
You can not get a better EV-95 BATTERY anywhere
BATTERY
Manufacturer: Panasonic
Type: Nickel Metal Hydride
Weight of Module: 18.75 kg
Shipping weight 41 pounds each
Nominal Module Voltage: 12.5 V
Nominal Capacity (C/3): up to 125 Ah
Auction # 150070755901
--- End Message ---
--- Begin Message ---
Now that sounds like a cheap shot, as they have
deliberately not published anything themselves, because
they know they cannot deliver to us anytime soon.
There are lots of speculative articles written, but
that is hardly anything EEstor can help.
For what it is worth:
EEstor is not a battery, it is a capacitor.
Fundamental difference is that you avoid the energy
conversion steps from electric to chemical and back
into electric energy during charge/discharge.
Theoretical efficiency of the capacitor approaches 100%
but the varying voltage when charging/discharging makes
it more difficult for charger and motor controller
designs, so that can impact efficiency compared to a
battery driven car, but the expectation is that a CEV
(capacitor-driven EV) is still more efficient than a BEV
(Battery EV).
The other interesting advantage is that the only
limit to charge and discharge speed is the heat produced
in the resistance of the interconnects and plates.
In practice, if you can make capacitors big enough to be
meaningful for EV propulsion, they consist of many
parallel-connected capacitors and the distribution of
the current makes the heating a non-issue compared to
the amount of power required when recharging fast.
There is no practical reason that a quick recharge
station would not be able to supply that power, up to
1 MW, when connected to the mid-voltage distribution grid,
so the real issue with EEstor at the moment is to show that
they can produce the devices that they described in
their patent, but now in mass production and control
the dangers of the unintended discharge capability,
the "plasma" effects when something fails and the
capacitor would start to discharge through a short-
circuit. Fusing sets of parallel modules is likely the
answer to that issue, but we'll see what they come up with
and since there are no theoretical big issues in their
way, like with Hydrogen, I have great expectations.
But don't hold your breath, because I have never seen
an EEstor device or talked to anyone associated with
the company - this is just my armchair reasoning of
potential possibilities and pitfalls of a new
technology - I have not been able to spot any one yet
that could not be solved rather trivially.
All I did was check the internet info about their
materials as mentioned in the patent and extrapolated
the application of Super-capacitors as some are using.
So it is all in my head - just the result of a logical
process of elemination and deduction.
In theory, there is no difference between theory
and practice. In practice however....
Nevertheless, I'd love to test a pack of their modules in
my truck to see if the practice is close to the theory,
but that would not help you because the modules would
not be any more available and I expect that I'd need to
sign a NDA (Non Disclosure Agreement) anyway.
Cor van de Water
Systems Architect
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Proxim Wireless Networks eFAX: +1-610-423-5743
Take your network further http://www.proxim.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Kaido Kert
Sent: Sunday, December 17, 2006 1:11 PM
To: [email protected]
Subject: Re: A123 EV pack (was Re: Lithium-ion batteries & Valence Group
buy)
EEStor :) Dont ask which corner though ..
If AltairNano and Phoenix would demo their fast charge capability on
large-scale app like EV, i'd be impressed as well.
-kert
On 12/17/06, Adan Vielma <[EMAIL PROTECTED]> wrote:
> What "Great New Battery" is around the corner?
> -Adan
>
> ----- Original Message -----
> From: "Osmo S." <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Saturday, December 16, 2006 11:06 AM
> Subject: A123 EV pack (was Re: Lithium-ion batteries & Valence Group buy)
>
>
> > Bryan,
> >
> > if you are not in a hurry, you may want to consider A123s. This is a
> > respond I got from them:
> >
> > "We're working on several standard modules that potentially may be
> > applicable; however I can't project their availability at this point.
> > I believe there is a good opportunity that either A123, or one of our
> > partners, will have a pack suitable for use in EVs sometime in 2007.
> > Sorry I can't be more specific. I think we'll be in a better position
> > to forecast new products in the next few months."
> >
> > But of course there is always the Great New Battery just around the
> > corner..
> >
> > Terveisin, Osmo
> >
> >
> >
> >
> > Bryan kirjoitti 16.12.2006 kello 2.01:
> >
> >> Don,
> >> I've been considering the Valence batteries for a while, but
> >> have been away from the EV list for a while. After reading through
> >> all the archived posts regarding a possible Valence group buy and
> >> doing the math, I am seriously considering a pack of 27 of the 40Ah
> >> U1-12XP if we could get the 50+ quantity price or better yet the
> >> 250 or 1000+ price break. From the EV list posts, however, I could
> >> not tell whether anyone has actually begun compiling a list to
> >> actually organize the group buy. It looks like you have been
> >> dealing with Valence a fair amount. Have you started a list?
> >> Thanks,
> >> Bryan Avery
> >>
>
>
--- End Message ---
--- Begin Message ---
That's 650 each battery...
6500 for all 10
db
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Cor van de Water
Sent: Sunday, December 17, 2006 5:08 PM
To: [email protected]
Subject: RE: NiMH Battery on eBay
Hmmm, somebody crashed their RAV4 EV?
Cor van de Water
Systems Architect
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Proxim Wireless Networks eFAX: +1-610-423-5743
Take your network further http://www.proxim.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of [EMAIL PROTECTED]
Sent: Sunday, December 17, 2006 10:55 AM
To: [email protected]
Subject: NiMH Battery on eBay
Ran across the following....
This seems like a AWFUL amount of money ($6,500) for a 12V 125AH
battery!
Matt Parkhouse
Colorado Springs, CO
BMW m/c-Golf Cart trike - 48 volts, 30mph on the flat, 35 mile range
Battery Panasonic (C-3) M-95 Rav4 EV Rav4 EV-95
You can not get a better EV-95 BATTERY anywhere
BATTERY
Manufacturer: Panasonic
Type: Nickel Metal Hydride
Weight of Module: 18.75 kg
Shipping weight 41 pounds each
Nominal Module Voltage: 12.5 V
Nominal Capacity (C/3): up to 125 Ah
Auction # 150070755901
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If you read the auction, he has them listed for 650.00 but he obviously
made a mistake in listing it..... And put an extra zero in there
db
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Cor van de Water
Sent: Sunday, December 17, 2006 5:08 PM
To: [email protected]
Subject: RE: NiMH Battery on eBay
Hmmm, somebody crashed their RAV4 EV?
Cor van de Water
Systems Architect
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Proxim Wireless Networks eFAX: +1-610-423-5743
Take your network further http://www.proxim.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of [EMAIL PROTECTED]
Sent: Sunday, December 17, 2006 10:55 AM
To: [email protected]
Subject: NiMH Battery on eBay
Ran across the following....
This seems like a AWFUL amount of money ($6,500) for a 12V 125AH
battery!
Matt Parkhouse
Colorado Springs, CO
BMW m/c-Golf Cart trike - 48 volts, 30mph on the flat, 35 mile range
Battery Panasonic (C-3) M-95 Rav4 EV Rav4 EV-95
You can not get a better EV-95 BATTERY anywhere
BATTERY
Manufacturer: Panasonic
Type: Nickel Metal Hydride
Weight of Module: 18.75 kg
Shipping weight 41 pounds each
Nominal Module Voltage: 12.5 V
Nominal Capacity (C/3): up to 125 Ah
Auction # 150070755901
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James Massey wrote:
I keep seeing on Ebay Curtis controllers in voltages up to 36 volt,
at 400A or so. Assuming that Curtis only use one type of diode,
would it be possible to upgrade (for example) a 12V 400A controller
into a 120 volt, 400A controller?
Possible? Yes. Practical? No.
If you compare a Curtis 1209 36v golf cart controller to a 1231 EV
controller, you'll find that the control logic board is virtually
identical. You could change a few parts on the boards, and interchange
them. The 36v board would have weaker gate drive and other limitations,
but would more or less work.
The big challenge is that all the parts in the power section have to
change. All the capacitors, all the diodes, and all the MOSFETs; over
100 parts. The new parts will be too big to fit on the old board. Plus,
they increased the number of parts. Thus, you need an entirely new PC
board. The new board won't fit in the case, so you need a new case, too.
Unless your time is free, and you get all the new parts for free, you
might as well buy a new controller.
--
Ring the bells that still can ring
Forget the perfect offering
There is a crack in everything
That's how the light gets in -- Leonard Cohen
--
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net
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If they are marine batteries, that rating is at a 20 Amp discharge rate. At
400 A, the cycle life and capacity will be very poor. That's if they are what
I think they are.
Steve
[EMAIL PROTECTED] wrote:
Check out Walmart for EverStart part number MAXX-29, 120 AH 12 volt marine
battery that weighs 57 lbs for 64.96 this is the cheap battery I am going to
use in my VW Bug for now.
They are a little heavy but with that amount of amp hours I should have a
very long range in a light car.
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
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--- End Message ---
--- Begin Message ---
I have used the MAXX-29 as a deep cycle on my camper van.
While lacking any objective numbers, it's a pretty crappy battery in my
experience. I have been through 3 or 4 of them IIRC. Like the last
one, after a year it had like 20% of the rated capacity. That was
primarily accidental discharges when I forgot to plug in the charger,
most shouldn't have been really deep and there's a low voltage shutoff
so it never would have been dragged under 10.5v or so.
I've gotten mixed results from Wal-Mart's 18-mo ful (non-prorated)
warranty. One time I fought them because even though after floating to
14.6v on the charger it only showed like 2 amp-hrs before dropping to
10.5v, they put this dinky hand meter on it and they say it reads good,
hundreds of cranking amps, much more than the battery's spec'ed
minimum. The manager insisted that since it tests good they wouldn't do
anything. I drained the electrolyte and took it to another Wal-Mart.
That stupid meter still said it was good! I told them it was leaking
acid and they said ok, they'll just swap it.
The latest time I just told them it was bad and they swapped it no
questions asked, they didn't even break out that meter.
The interesting part is that if you get one replaced under warranty at
17 months, the new one will still be warrantied and that's 18 months
from that date. As such, the warranty can be perpetual since it usually
breaks in much less than 18 months.
But again it appears this is a monumentally crappy battery for
durability. I bet that under EV duty it's going to yield very little
life. I think if you bring in 10 batteries every few months to swap
them out for new, somebody's gonna say something.
Danny
[EMAIL PROTECTED] wrote:
Check out Walmart for EverStart part number MAXX-29, 120 AH 12 volt marine
battery that weighs 57 lbs for 64.96 this is the cheap battery I am going to
use in my VW Bug for now.
They are a little heavy but with that amount of amp hours I should have a
very long range in a light car.
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Does anyone here have one? If so, how reliable do you think it will be? From
what I read in this site's archives, the vehicles have been in production for
around six months. If anyone has one, what is it's practical range? The
manufacture says 40 miles, but I figure it probably has a practical range of
around 20 on level terrain.
Thanks,
Lawrence
of Glendale, CA
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
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--- Begin Message ---
I am planning to increase my battery pack from 108 volts to 120 volts. The
DC/DC isa Curtis 1400E model #1201. The input voltage is listed as 72/96
output is 13.5. The current input measures 106 volts and the current measures
13.7 The question is what will happen when the pack voltage is increased to
120 volts. Will the input voltage be damaging to the DC.DC unit? Will the
output voltage increase? If so, how can I prevent this?
As a newbie I keep finding questions that I cannot answer. Thanks for your
help!!!!
--
In Friendship, Ted
//ted.sanders.home.comcast.net
//ffni.home.comcast.net
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Just wanted to repost and remind everyone of the offer on the table,
particularly the 40 people of which I've not heard from.
I realize before xmas not many are thinking of spending thousands on a
battery pack, but this offer will expire at some point.
Jack
Jack Murray wrote:
The poll results are in, almost 40 people saying they would spend over
$4,000 for a NiMH battery pack,
and 6 saying they would spend over $10,000. While not overwhelming, it
looks like enough interest to proceed.
For the pack specifics this is the current plan:
Built as 100-cell 120v 9aH blocks that would sell for $900 ea for the
first 10 customers. For a 90Ah pack, you would buy 10 blocks for
$9,000. The blocks would stack on top of each other.
The parallel connections would be solid copper bar interconnects. Each
block would be approximately 24" x 18" x 1.75" and weigh 43 lbs
Blocks will be liquid cooled/heated, the plumbing for each block will
parallel also.
A block can output a 90amps continous, and 180 amps for 10 seconds.
The expected life is 700 cycles with at least 75% capacity.
Every cell will have its temperature monitored.
Cells can be replaced by customer with at least a 10-cell granularity if
found to have poor performance identified by temperature monitoring and
reported to user.
A block can be recharged from its power connection with 160vdc from
regen or otherwise, but would not have
a cutoff from this method and be intermixed with discharge.
To recharge in full with cutoff would need a 160vdc input using
charging input connections.
The motor controller would be responsible to cut-off discharge when
voltage falls below 90v.
My current thinking is to get 10 people willing to buy a pack. The
interesting deal is that the first 10 early adopter risk takers will get
rebates on their pack purchase when the next 10,20,30,40,50,100 packs are
sold, $500 each 10. So if 100 packs are sold after the first 10, you
would get back $5,000 of your initial purchase price.
If you are seriously interested as a first 10 customer, please send me a
direct email, and let me know
your feedback on the above specs and pricing proposal. It will likely
be at least Feburary before they will be available for delivery,
I will likely require a 50% deposit.
Jack
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At 07:17 AM 17/12/06 -0800, Jim Husted wrote:
Hey James
First off just get me some measurements of the pole
shoes and the housing length before sending anything.
Will do, I'm picking the motor up in a couple of days since I've got to do
a job the other side of those guys (2 1/2 hour drive each way). I'll let
you know more info off-list then.
As to the other options, I've only seen a few types
but I hate Lansing Bagnalls, so I say "bag" the nalls.
OK.
Hitachi makes an awesome motor though and even if it's
bigger than you need it will take a lot more abuse
than any of the other motor options you have.
I'm more concerned about the abuse that motor would do to the driveline.
The truck only had a 27hp 2-cylinder petrol engine, and the driveline is
suitably light.
I remember even telling you a long time ago that the
motor you had chosen tended to burn up the coils
(least I think I did).
Nope, you said "Ransomes Sims and Jefferies Ltd, Ipswich, England - never
seen one" or something to that effect.
Every Hitachi I've seen has
been built like a steel mule and if someone's killed
one they worked hard to do it.
By the look of it they jammed something under the CE housing and picked the
forklift up by it, breaking the CE housing and putting the rotor off-line
allowing it to rub the pole shoes (meggers fine still, at 1kV, after I
cleaned it up). They then ran it like that until it broke off the output
shaft. At some point the fan got some chunks smacked out of it, too. So the
plan if I use this motor is a rebuilt CE assembly with an external blower,
a new shorter DE plate and move the DE bearing back to where the fan was
(yes, it's gone now) and outlet the air through the DE plate face into the
space behind the flywheel coupler.
Anyway sorry to hear you've run into a wall here, lets
see what's the best way to fix this. Why scale a
hundred foot wall if it's only a block long, just go
around it, ya know, hehehe.
Anything for an easier solution! Lets hope you can find some fields that'll
fit the pole pieces.
Anyway I'll be waiting for some pics and lets see what
you have to work with. With what I've heard so far
I'd make a new comm plate and go with the Hitachi and
have a happy workhorse of a motor to push you up those
hills, but it'd be nice to get more info.
Hope this helps
Jim Husted
Thanks and Regards
[Technik] James
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Hmm I have been using one of them for a year now to power my 4 1000 WS
strobe lights, laptop, hair dryers, curling irons and anything else while out
on a
model shoot for my photography and it has been working well for me. I used
to have to drag around a 3500 watt generator until I used this setup.
Jeffrey
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Hi Jack an' All;
$ K for a Battery pack of NiMH's sounds good, but ywe haftas think of a
Fancy Charger, to go with the pack? No more Bad Boys, Smokin' 'stench chords
and all that, anymore. Rich Rudman working on this??
Interested, IF they do a hellova lot better than 300 cycles.
Bob
----- Original Message -----
From: "Jack Murray" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Sunday, December 17, 2006 8:58 PM
Subject: Re: NiMH Battery Pack Proposal
> Just wanted to repost and remind everyone of the offer on the table,
> particularly the 40 people of which I've not heard from.
> I realize before xmas not many are thinking of spending thousands on a
> battery pack, but this offer will expire at some point.
> Jack
>
>
> Jack Murray wrote:
> > The poll results are in, almost 40 people saying they would spend over
> > $4,000 for a NiMH battery pack,
> > and 6 saying they would spend over $10,000. While not overwhelming, it
> > looks like enough interest to proceed.
> >
> > For the pack specifics this is the current plan:
> > Built as 100-cell 120v 9aH blocks that would sell for $900 ea for the
> > first 10 customers. For a 90Ah pack, you would buy 10 blocks for
> > $9,000. The blocks would stack on top of each other.
> > The parallel connections would be solid copper bar interconnects. Each
> > block would be approximately 24" x 18" x 1.75" and weigh 43 lbs
> > Blocks will be liquid cooled/heated, the plumbing for each block will
> > parallel also.
> > A block can output a 90amps continous, and 180 amps for 10 seconds.
> > The expected life is 700 cycles with at least 75% capacity.
> > Every cell will have its temperature monitored.
> > Cells can be replaced by customer with at least a 10-cell granularity if
> > found to have poor performance identified by temperature monitoring and
> > reported to user.
> > A block can be recharged from its power connection with 160vdc from
> > regen or otherwise, but would not have
> > a cutoff from this method and be intermixed with discharge.
> > To recharge in full with cutoff would need a 160vdc input using
> > charging input connections.
> > The motor controller would be responsible to cut-off discharge when
> > voltage falls below 90v.
> >
> > My current thinking is to get 10 people willing to buy a pack. The
> > interesting deal is that the first 10 early adopter risk takers will get
> > rebates on their pack purchase when the next 10,20,30,40,50,100 packs
are
> > sold, $500 each 10. So if 100 packs are sold after the first 10, you
> > would get back $5,000 of your initial purchase price.
> >
> > If you are seriously interested as a first 10 customer, please send me a
> > direct email, and let me know
> > your feedback on the above specs and pricing proposal. It will likely
> > be at least Feburary before they will be available for delivery,
> > I will likely require a 50% deposit.
> >
> > Jack
> >
> >
>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.409 / Virus Database: 268.15.22/590 - Release Date: 12/16/06
>
>
--- End Message ---
