Re: [EVDL] Do EVs make green sense?

He's definitely interesting to listen to but keep in mind that he is selling a book or 3. His analysis seems a bit simplistic but makes for great sound bites. In one video he claims solar panels will get more expensive due to labor cost increasing, and according to him you just can't automate pane

Re: [EVDL] Electric motor breakthrough

So there's an inner rotor, outer rotor and two side rotors. My question is how do the get power to the stator and what holds the stator in place? How do they cool the stator? Smells a bit like snake oil but the seem to be hiring the right kind of engineers so they might be serious. On Thu, Aug 15

Re: [EVDL] Products with temperature sensing in the AC plug?

Thanks Lee, I'm trying to find some prior art on this very obvious idea due to a recent patent on it. Would you happen to remember which brand used this feature? On Tue, Sep 25, 2018, 7:25 PM Lee Hart via EV wrote: > Peter Gabrielsson via EV wrote: > > Can any of you oldtimer

[EVDL] Products with temperature sensing in the AC plug?

Can any of you oldtimers think of any product that had temperature sensing in the AC plug? Preferably from before 2011. Thanks -- next part -- An HTML attachment was scrubbed... URL:

Re: [EVDL] Voltage spikes

UL requires EVSEs to go through pretty serious surge testing, 6000V 3300A if I recall correctly. All the EVSEs I've torn down have MOVs installed. The vehicle has additional MOVs and protection. On Wed, Dec 13, 2017 at 3:00 AM, Peter Eckhoff via EV wrote: > We live in an area with a fair number

Re: [EVDL] EVDL: Hydrogen - here we go again? (or maybe?)

It's still a waste. Round trip efficiency for splitting water, compressing it for storage, extracting energy through fuel cell is very low: from wikipedia " Practical electrolysis (using a rotating electrolyser at 15 bar pressure) may consume 50 kilowatt-hours per kilogram (180 MJ/kg), and a furth

Re: [EVDL] Another J1772 L2 purchase

No, it's horsepucky. The car will throttle back to what the evse can supply. On Sep 24, 2016 13:08, "ROBERT via EV" wrote: > The statement shown below was posted. Can someone answer the question > does a 6.6KW charger demand all or nothing? > > > I would think that all well designed, UL or CE

Re: [EVDL] Another J1772 L2 purchase

No experience with the Duosida but I saw no UL or other agency marks on it. On Thu, Sep 22, 2016 at 8:33 PM, Robert Bruninga via EV wrote: > I need another L2 J1772 EVSE... > I just checked Amazon and there are two L2 EVSE for $299. > > One comes with a dryer plug and is called Ebusbar BEV-H02A1

Re: [EVDL] Cut-EVSE-cord-vandalism (pull-out cord)

Well, the safety agencies require it at the plug, or no more than 1 foot from the plug. It kind of makes sense since the primary purpose of the EVSE is to be a ground fault interrupter, it can only detect ground faults downstream so you want it as close to the source as possible. But the requireme

Re: [EVDL] French man electrocuted while trying to steal petrol from an EV> a burning smell was noticed

The BS detector is going wild on this one. On Thu, May 26, 2016 at 12:40 AM, brucedp5 via EV wrote: > > > % He problably tried to punch a hole into what he thought was the gas tank, > but found out the hard-way it was the EV's high-voltage pack ... Protester > blocked refineries, panic-buying,

Re: [EVDL] OEM EV charging on 120V with no ground?

The safety concern is that you have no protection ground so a ground fault inside the vehicle may result in the body of your vehicle becoming live. I've never seen an RV pedestal without ground though? I though that was required for any outdoor outlets. If this is a permanent thing you might want

Re: [EVDL] Polarity Reversal (duh)

I hooked up a power-supply to my 120V pack once, backwards. The arc was bright, the bang was loud, leads were vaporized. On Mon, Jul 6, 2015 at 9:35 AM, Robert Bruninga via EV wrote: > Sharing my mistakes so others can avoid them. > > > > Wife was outta town so I hauled over the Honda Civic DC

Re: [EVDL] Good data or bad? How do you know? Or is it the interpretation?

He proved that putting parasitic loads on some cells in a series string vill cause the string to go out of balance. Nothing else. On Jun 27, 2015 1:37 PM, "Paul Dove via EV" wrote: > https://www.youtube.com/user/jlghardy/videos > > John Hardy's YouTube channel is extremely interesting (here) he t

Re: [EVDL] "Zero self-discharge"

it's all physics On Wed, Jun 24, 2015 at 9:11 AM, Paul Dove via EV wrote: > A battery is chemical not electrical > > Sent from my iPhone > > > On Jun 24, 2015, at 9:31 AM, Lee Hart via EV wrote: > > > > Roger Stockton via EV wrote: > >> I think that it is possible that people are confusing *the

Re: [EVDL] Tesla plugs into new market with home battery system

I don't see TOU shifting quite working out financially, almost though. Example, my utility charges 46c/kWh peak rates and 11c/kWh off peak rates. so essentially I save 35c per kWh that I shift, or $3.50 if I use the 10kWh full capacity every day, ignoring losses. That's $100/month which gives a p

Re: [EVDL] Aluminum battery from Stanford

You may be confusing power and energy On Apr 7, 2015 2:59 PM, "Bill Dennis via EV" wrote: > Their current version of the battery has only 40 watts of electricity per > kilogram compared to lithium's 100 to 206 W/kg power density--so you'd need > more of them to get the same power. That might get

Re: [EVDL] Aluminum battery from Stanford offers safe alternative to conventional batteries

It sure looks interesting, more information here: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature14340.html If I did the math correctly it seems like it's in the 120-140 wh/kg range. Certainly usable for EVs. Hopefully it makes it out of the lab. On Tue, Apr 7, 2015 at 1:11 PM, B

Re: [EVDL] EVLN: Is a piddling $8/mo Extra Electricity Worth a Tesla over an i3?

Such useless drivel. BMW I3 = $40k Tesla = $75k On Fri, Mar 20, 2015 at 3:39 AM, brucedp5 via EV wrote: > > > > http://motoringcrunch.com/news/tesla-model-s-vs-bmw-i3-8-extra-electricity-is-worth-it/1009927/ > Tesla Model S vs BMW i3: $8 Extra Electricity Is Worth It > March 15, 2015 > > When

Re: [EVDL] Grid Solar kits?

I'm contemplating this myself. There are cheaper kits though, http://www.renogy-store.com/category-s/1872.htm The only thing I worry about is the building department and permits, the mounting and wiring looks easy enough. On Mon, Dec 22, 2014 at 10:07 AM, Robert Bruninga via EV wrote: > > Has an

Re: [EVDL] Police.cn warn of dangers> long scarves & e-mopeds don't mix

No capes! Seriously though, what does this have to do with electrics specifically. Doesn't it apply to all mopeds, motorcycles and bikes? On Wednesday, December 10, 2014, brucedp5 via EV wrote: > > > > http://www.wantchinatimes.com/news-subclass-cnt.aspx?id=2014120612&cid=1103 > Long scarve

Re: [EVDL] Q about using an electronic load.

Yes absolutely, you need large inductors and a mosfet or IGBT based controller. Large inductors are cheap and easy to make though. Vicor modules is a good solution too. On Fri, Nov 7, 2014 at 11:16 AM, Lee Hart via EV wrote: > Peter Gabrielsson via EV wrote: > >> One relatively

Re: [EVDL] Q about using an electronic load.

One relatively cheap way of doing high power cycle testing is to cycle power between a large battery bank and the test battery using a bidirectional DCDC converter. The DCDC is simple since it's just a switching pole with an inductor and some controls. A DC motor controller with regen capability c

Re: [EVDL] Range vs Speed

There's definitely a huge reduction in consumption when I drive at a steady ~30-40mph in traffic compared to 65mph+. Some days, when the charger fails me, I pray for traffic so I can make it home. Surface streets with all the stop signs and lights however don't reduce my consumption nearly as much

Re: [EVDL] Batteries that can be recharged to 70 percent in just 2 minutes

This is the same stuff Altair Nano was pushing a few years back. We recharged them to 80%in less than 10 minute IIRC. They made a higher power/lower capacity prototype cell also that probably could have been recharged even faster. The drawback was always energy density, at 80Wh/kg it's just slight

Re: [EVDL] Dissimilar metals on Headyways?

Wow, I can't believe they actually used steel in those connections. I had heard about it but presumed people were confusing nickel-plating with steel. Nope, that is steel with rust an everything. Stay away! On Thu, Sep 18, 2014 at 9:21 PM, EVDL Administrator via EV < ev@lists.evdl.org> wrote: >

Re: [EVDL] Gabrielsson Approval Items

Please ignore previous email. Need coffee On Fri, Sep 12, 2014 at 8:32 AM, Peter Gabrielsson < peter.gabriels...@gmail.com> wrote: > > See below email. > > > -- Forwarded message -- > From: Poindexter, Julianne > Date: Fri, Sep 12, 2014 at 7:24 AM

[EVDL] Fwd: Gabrielsson Approval Items

See below email. -- Forwarded message -- From: Poindexter, Julianne Date: Fri, Sep 12, 2014 at 7:24 AM Subject: RE: Gabrielsson Approval Items To: Peter Gabrielsson Cc: "jle...@remax.net" , "Severino, Brandon" < bsever...@homedirectmortgage.com> Hi

Re: [EVDL] Ride an EV, Skip the Exercise?

The device might be sensitive to the electromagnetic fields your car emits. On Thu, Sep 11, 2014 at 6:07 AM, Bill Dennis via EV wrote: > My wife has been wearing a Fit Bit device, which tracks both the number of > steps she takes and the number of floors she climbs daily. An odd thing is > happ

Re: [EVDL] Vacuum Switch

I used something like this: http://www.ebay.com/itm/SMC-ZSE4-LCD-Readout-Digital-Pressure-Switch-for-Vacuum-ZSE4-01-25-/181468926790?pt=LH_DefaultDomain_0&hash=item2a40641346 The set-points are adjustable. You can find a wide variety of them on ebay. Mine had transistor output so I had to add a r

Re: [EVDL] Stud type fuse block needed

at thrift stores for $1, but they usually > make you take the skis with them. :-) > > Jan > > On 2014-09-08, at 13:33, Peter Gabrielsson wrote: > > > Ah, an incendiary device! It seems to me replacing the burnt out car > might cost more than the fuses. > > > &g

Re: [EVDL] Stud type fuse block needed

Ah, an incendiary device! It seems to me replacing the burnt out car might cost more than the fuses. On Mon, Sep 8, 2014 at 1:30 PM, Jan Steinman via EV wrote: > > From: Lloyd Wayne Reece via EV > > > > I have purchased a fuse for an EV in the making and now I need a fuse > > block that I can

Re: [EVDL] Charge Cable Theft Idea (boots on the ground)

Unlikely to help, stripped wire fetches more money than insulated so the cable won't be recognizable. On Wed, Sep 3, 2014 at 6:35 AM, Robert Bruninga via EV wrote: > IM going to ask our local EVSE MFR to give me some 6” samples of his EVSE > charge cables. > > > > Then I will mount them on a s

Re: [EVDL] CALB bolt terminals getting hot -

You need a very expensive spot welder to weld lithium cells in cans without damaging them. Bill Dube is the expert on this topic but I don't think he's on the list anymore. There's some info on this page: http://www.hightechsystemsllc.com/pt_Batterypacks.html The harbor freight welder is a good wa

Re: [EVDL] Phys.org: Could hemp nanosheets topple graphene for making the ideal supercapacitor?

Ultracaps and drag racing comes up quite frequently. It's been tried and it's not a good match. Dragsters need more power the the further down the track they go. Ultracaps ability to deliver power drops the more you discharge them due to their voltage dropping. (E = 0.5CV^2) Essentially you run ou

Re: [EVDL] CALB bolt terminals getting hot -

Two years of constant thermal cycling is plenty for aluminum connections to develop serious resistance issues. Sand and grease (noalox worked for me) the terminals and the issues will go away. On Wed, Aug 13, 2014 at 2:20 PM, Danpatgal via EV wrote: > I am using 38x130 ah CALBs in my Lectric

Re: [EVDL] Nightmare at the CA DMV

I also had to take my EV to the referee. He looked under the hood and scratched his head, made a phone-call to someone and essentially said he had no idea what he was looking at but it sure doesn't have an engine. Then he typed something into a computer and that was it. On Wed, Jul 30, 2014 at

Re: [EVDL] BMW 24kw DC fast charger

$0.27/W is cheap for power electronics, they are practically giving it away. It also comes in a NEMA 54 enclosure, has 1772 interface, is probably isolated and UL listed so comparing it to PFC75 ($0.25W) is not really fair. The 24kW may come from a desire to stay below the demand charge that usual

Re: [EVDL] Hybrid Mustang: batteries

http://www.a123systems.com/ On Thu, Jul 24, 2014 at 8:59 PM, Ben Apollonio via EV wrote: > Too bad A123 went under. Their cells would have been PERFECT. > > You could consider the EnerDel high-power modules carried by evolve > electrics (and possibly others, but I haven't seen them elsewhere).

Re: [EVDL] Batteries as thermoelectric generators

Interesting. It must be a pretty low discharge rate to offset the increase in internal resistance. Reminds me of this: http://phys.org/news/2012-03-efficiency.html On Wed, Jun 4, 2014 at 12:13 PM, Lee Hart via EV wrote: > Here's an interesting idea (sorry for the long URL): > > http://powerele

Re: [EVDL] EV Digest, Vol 19, Issue 19

Because the resistance of copper changes 4% for every 10 degree change in temperature. Manganin, which shunts are made of, barely change at all. Typically it's less than 0.05% in the normal temperature range and 0% around 30-40C. Here's a graph http://images.elektroda.net/89_1304228034.png Copper

Re: [EVDL] software for wiring drawing diagrams

ExpressPCB is very simple and easy to use. It's geared towards PCB design but useful for any kind of schematic. http://www.expresspcb.com/ KiCAD is free and open source. http://www.kicad-pcb.org/display/KICAD/KiCad+EDA+Software+Suite gEDA is another open source package, haven't tried that one late

Re: [EVDL] HACKED PRIUS RUNNING ON MUNI POWER LINES

Published April 1st On Wed, Apr 2, 2014 at 8:20 AM, Ing. Marco Gaxiola wrote: > Not sure if I saw this on EVDL or FB, but in any case it is interesting: > > > > http://www.thebolditalic.com/articles/4717-hacked-prius-running-on-muni-powe > r-lines > > > > > HACKED PRIUS RUNNING ONMUNI POWERLINES

Re: [EVDL] How can regen be a reason to buy or not? : EVLN:Fiat500eEV> close to perfect

80% regen efficiency * 80% drive train efficiency = > 64%. Cor hypothesized up to 72%. > > 20%: several people mentioned a hypothetical 20%; don't remember who > without > looking. > > -Original Message- > From: ev-boun...@lists.evdl.org [mailto:ev-boun...

Re: [EVDL] How can regen be a reason to buy or not? : EVLN:Fiat500eEV> close to perfect

%: several people mentioned a hypothetical 20%; don't remember who > without > looking. > > -Original Message- > From: ev-boun...@lists.evdl.org [mailto:ev-boun...@lists.evdl.org] On > Behalf > Of Peter Gabrielsson > Sent: 19 March, 2014 2:05 PM > To: Electric

Re: [EVDL] How can regen be a reason to buy or not? : EVLN:Fiat500eEV> close to perfect

And how do you come up with that number? On Wed, Mar 19, 2014 at 2:03 PM, Peri Hartman wrote: > Yes, I completely realize that the effectiveness of regen, and range in > general, depend on many factors. Yet, in theory one should be able to > achieve 65-75% effective range improvement. I'm onl

Re: [EVDL] Adding a 5-15 inlet to a Production plugin for regular ext. cord use

I suspect the EVSE will go the way of the Dodo eventually due to pricing pressure. The auto industry (GM) put the J1772 into law to make their expensive inductive charger competitive. Now it is hitting their profit margin and sales numbers. We're already seeing the requirements being softened, it

Re: [EVDL] Getting Around Energy Density by Tethering - EVs For Agriculture

Out of curiosity I looked up the diesel fuel consumption of Combines. It ranges from 1-1.6 gallons per acre. Which roughly would translate to 12-20 kWh of electricity per acre. So for a 100 Acre field you'd need 15 to 25 tesla battery packs. Yikes. On the other hand you'd need a 1200 ft long cord

Re: [EVDL] Turbocord EVSE

The argument against putting the guts in the coupler is that it's likely to get run over and dropped in puddles etc. You also want to interrupt the electrons as close to the source as possible, in case hose is compromised. You could however argue that the utility end is also likely to be dropped

[EVDL] Turbocord EVSE

The turbocord EVSE is finally out: http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=aerovironment+turbocord&rh=i%3Aaps%2Ck%3Aaerovironment+turbocord I know about the rules regarding product placements but I find this worth mentioning due to its size and plug integration

Re: [EVDL] J1772 Thoughts

My solution was to use a 4pin twist-lock connector, it's in parallel to the J1772 socket. The pilot from the J1772 is connected to the neutral pin on the twistlock through a diode and load resistor. In order to enable the EVSE there has to be a dummy plug with a jumper from Neutral to GND in the tw

Re: [EVDL] RE, zoom zoom

Your first paragraph pretty accuratly describes an LA freeway, except for the pea-sized bit. Not much driving joy there, I'd rather close my eyes and get some more sleep while the car deals with the traffic. On Mon, Jan 13, 2014 at 8:16 AM, Electric Blue auto convertions < electricb...@embarqma

Re: [EVDL] Keeping LiFePO4 battery terminals tight every 10k miles

lated steel is a very poor > idea! MW > > > On 8 Jan 2014, at 16:32, Peter Gabrielsson wrote: > > > Here's a picture of what Toyota use in their prius battery terminals: > > http://techno-fandom.org/~hobbit/cars/batbox/80corropen.jpg > > > > Notice the nut

Re: [EVDL] Keeping LiFePO4 battery terminals tight every 10k miles

Here's a picture of what Toyota use in their prius battery terminals: http://techno-fandom.org/~hobbit/cars/batbox/80corropen.jpg Notice the nut with the captive bellville washer. They used the same type in their RAV4 EVs. On Wed, Jan 8, 2014 at 7:48 AM, Michael Ross wrote: > Martin, > > I hav

Re: [EVDL] Looking headway completed packs

I've measured self discharge, I've got access very expensive equipment for doing so since I work in the EV industry. Lithium cells self discharge, all cells do. It gets worse with age, wear and tear, cheapo Chinese cells are not exempt from this. What Cor is doing is a valid way to estimate self d

Re: [EVDL] Issues using a Leaf Pack in a conversion.

No, it's somewhere around 400Vdc On Tue, Dec 17, 2013 at 9:03 AM, Lawrence Rhodes wrote: > So the Leaf Pack is 182vdc. That leaves out my Curtis rebuilt. It might > take 170volts. Looks lIke I'd also have to upgrade to some sort of Zilla > that could take that voltage. Question is what real

Re: [EVDL] EVLN: Kia Soul EV goes global and aims for 120-miledrivingrange

Going a mile on the map, a hilly road is obviously a longer distance. Hilly also requires higher power when going up hill which usually means less efficient. Other than that it's about the same On Wed, Nov 20, 2013 at 3:51 PM, Michael Ross wrote: > I am not talking about regenerating. The net

Re: [EVDL] Involuntary disconnect

That's definitely a shitty thing to do. Most if not all couplers I've seen has a hole that you can put a pin/padlock through in order in order to lock it in place. Locking the coupler is kind of shitty too since it prevents plug sharing but in some locations it might be necessary. On Mon, Nov 1

Re: [EVDL] EVLN: EU-funded Volvo project embeds batteries into bodypanels

It doubt work in the south either. Embedding batteries in panels that are exposed to solar loading is not a good idea. If you can fry eggs on it, a battery will not be happy in it. On Fri, Oct 18, 2013 at 9:51 AM, Paul Wujek wrote: > > On 13-10-18 10:08 AM, Peri Hartman wrote: > >> For exa

Re: [EVDL] Resistance

On Thu, Jun 20, 2013 at 1:33 PM, wrote: > Bill & David and all > > I am in total agreement and understand about the flow of current in series. > > Each cell is delivered an equal amount of power. > Not the case. The higher resistance cell is delivered more power when charged > The electrons go

Re: [EVDL] Did Tesla steal my battery design?

You were probably one of the first but AC-propulsion converted their t-zero to laptop cells in Aug 2003. Considering where Tesla got their first drive-trains I'd say they probably got the ideas for the battery from the same place. On Tue, Jun 18, 2013 at 8:25 AM, Cruisin wrote: > In 2004 I con

Re: [EVDL] Resistance Jack Rickard of EVTV.me

While I agree that resistance is important you are unfortunately not really correct that it causes imbalance due to energy loss in series strings. Batteries are primarily electron storage devices, that's why their capacity is measured in Ah (1Ah= 5767*10^19 electrons). In a series string the amou

Re: [EVDL] Water damage to MiniBMS board

On Wed, Apr 24, 2013 at 2:45 PM, Lee Hart wrote: > > > I believe that is an acrylic. These are cheap and easy, but barely do any > good. They are mainly useful when you want it dirt-cheap, and the conformal > coating is mostly for marketing. > Depends on the application. They offer no resistance

Re: [EVDL] voltage sag solution

t; Proxim Wireless Corporation http://www.proxim.com > Email: cwa...@proxim.com Private: http://www.cvandewater.info > Skype: cor_van_de_water Tel: +1 408 383 7626 > > > -Original Message- > From: ev-boun...@lists.evdl.org [mailto:ev-boun...@lists.evdl.org] On > Behalf Of Peter Ga

Re: [EVDL] Water damage to MiniBMS board

Humiseal con-formal coatings. http://www.ellsworth.com/humiseal-1a33-polyurethane-coating-340ml-aerosol/?gclid=CLbjuZeX5LYCFTBxQgodXE8AHA Or in pinch, Crylon crystal clear supposedly works. On Wed, Apr 24, 2013 at 1:39 PM, wrote: > I drove my Spitfire (evalbum.com/4498) during the heavy rain

Re: [EVDL] voltage sag solution

> The interesting thing is... what would an electroplater say if you brought > him some lithium cells and asked him to plate the aluminum terminals? Tried that with pouch cells, they wouldn't touch them. Something about immersing high energy/power flammable cells into conductive liquid gave them

Re: [EVDL] Is this the future in AC Multphase EV Motors

“As I was designing the motor, whenever I ran into a problem, I would just shove in another micro-processor with the idea that I would come back to that problem later,” Sounds like quality engineering On Fri, Mar 15, 2013 at 6:28 PM, fotajoye wrote: > This article talks about a prototype non-inv

Re: [EVDL] Cal Battery

/www.anl.gov/articles/argonne-and-calbattery-strike-deal-silicon-graphene-anode-material> > > So while you can rent space at Argonne, which I did not know, this second > article says Argonne did develop the material which I thought put some legs > to the PR. > > > On 3/12/20

Re: [EVDL] Cal Battery

AFAIK any company/institution can rent time and space at Argonne to do testing/development. I see no mention on their website they are in a joint venture with Argonne. On Mon, Mar 11, 2013 at 4:43 PM, Peter Eckhoff wrote: > re: http://www.clbattery.com/ > > This company is a joint venture betwe

Re: [EVDL] MagnaCharger. Can it be modified to conform to the J1772 standard?

no,they are very different from J1772. On Sat, Jan 19, 2013 at 7:02 AM, Lawrence Rhodes wrote: > I've seen a few Magnachargers for sale. Cheap. Can they be used with a > J1772 > plug easily? Lawrence Rhodes > > ___ > UNSUBSCRIBE: http://www.evd

[EVDL] VCO or PSK IC for high speed communication

This is slightly off topic so don't reply to the list. I wanted to ask the gurus on here if they know of any simple AC modulation ICs. I need to transmit a 1Mbps intermittent digital signal over a 100Mbps fiber transceiver. The fiber transceiver has a high pass input on it's receiver so I need to

Re: [EVDL] EVLN: $25k 2012 Coda EVs ...

Firesale is right They furloughed their employees in December according to my friend who works there. On Thu, Jan 17, 2013 at 1:30 AM, brucedp5 wrote: > > % Looks like a fire-sale price % > > > http://www.greencarreports.com/news/1081723_2012-coda-sedan-electric-car-price-slashed-to-25000 >