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

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

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 oldtimers thi

[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

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

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

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

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

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

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

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 ev@lists.evdl.org wrote: Sharing my mistakes so others can avoid them. Wife was outta town so I hauled over the

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 ev@lists.evdl.org wrote: https://www.youtube.com/user/jlghardy/videos John Hardy's YouTube channel is extremely

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,

Re: [EVDL] Aluminum battery from Stanford

You may be confusing power and energy On Apr 7, 2015 2:59 PM, Bill Dennis via EV ev@lists.evdl.org 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.

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 ev@lists.evdl.org 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,

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 ev@lists.evdl.org

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 ev@lists.evdl.org wrote: http://www.wantchinatimes.com/news-subclass-cnt.aspx?id=2014120612cid=1103

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

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

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: On

[EVDL] Fwd: Gabrielsson Approval Items

See below email. -- Forwarded message -- From: Poindexter, Julianne jpoindex...@homedirectmortgage.com Date: Fri, Sep 12, 2014 at 7:24 AM Subject: RE: Gabrielsson Approval Items To: Peter Gabrielsson peter.gabriels...@gmail.com Cc: jle...@remax.net jle...@remax.net, Severino,

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 jpoindex...@homedirectmortgage.com Date: Fri, Sep 12, 2014 at 7:24 AM

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_0hash=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

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 ev@lists.evdl.org 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

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 ev@lists.evdl.org wrote: From: Lloyd Wayne Reece via EV ev@lists.evdl.org I have purchased a fuse for an EV in the making and now I need

Re: [EVDL] Stud type fuse block needed

You can find leftover amptrap fuses on ebay for quite cheap. I'd rather trust those than some skipole/solder contraption. There's a reason those fuses have 1/8inch thick shells and are filled with sand. Anyway, good luck. On Mon, Sep 8, 2014 at 1:37 PM, Jan Steinman j...@ecoreality.org wrote:

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

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

Re: [EVDL] Hybrid Mustang: batteries

http://www.a123systems.com/ On Thu, Jul 24, 2014 at 8:59 PM, Ben Apollonio via EV ev@lists.evdl.org 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

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 ev@lists.evdl.org wrote: Here's an interesting idea (sorry for the long URL):

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