Re: [EVDL] Leaf battery replacement ?

I also have a 2013, original battery was 10 bars when I bought it in 2019, done 25K km since then, battery dropped to 7 bars this year. I found another 2013 battery with 10 bars, had dome more kms than mine. So far it's still at 10 bars. Here in NZ 2013 is the worst for battery degradation, almost

Re: [EVDL] Mid drive bicycle regen: how to.

I have bikes with ev conversions I bought before the dedicated e bikes were available, but hub motors. I don't use gears, I keep it in top gear. Can you ride a centermotor bike only using top gear? Then you can do away with derailleur? -Original Message- From: EV On Behalf Of Bill

Re: [EVDL] HV DC input -to- 120VDC output inverter???

At 400V battery voltage it will probably be "transformerless", in which case the power side would be capable of running at 200V for 120V output. The control would need to be "hacked". I have a UPS I bought for $300, 225V battery and 240V AC out. Not grid tied though, these are available 2nd hand,

Re: [EVDL] regent seaglider (Electric Eel - partway there)

Seems to have worked ok to me! https://youtu.be/V8Nu94khHoo https://youtu.be/_Cq0ffFiJUY https://youtu.be/4pd8SFCuFpk https://youtu.be/Vbjorr_FIko There are more than you will want to watch! In the early 60's there was a article in "popular Science", I tried it with a sheet of paper on the floor.

Re: [EVDL] hydrogen isn't green, after all

I actually think hydrogen from solar and wind is a good think, ICE trucks pickups etc can be converted to run hydrogen in the ICE engine, just stop making new ICE cars. Hydrogen helps in a few different ways. With petrol, it can run on a 5% mixture, so you can almost run without a throttle

Re: [EVDL] From my nissan leaf .com: Why the Leaf 12v system undercharges the 12v battery.

Original Message- From: EV On Behalf Of Lee Hart via EV Sent: Thursday, 22 April 2021 6:46 am To: George Tyler via EV Cc: Lee Hart Subject: Re: [EVDL] From my nissan leaf .com: Why the Leaf 12v system undercharges the 12v battery. George Tyler via EV wrote: > An alternator is ve

Re: [EVDL] From my nissan leaf .com: Why the Leaf 12v system undercharges the 12v battery.

An alternator is very different to a Dc-Dc converter in this respect. Modern high frequency DC-DC conv. Have very small inductors storing very little energy. An Alternator has a HUGE inductor storing a lot of energy, and this is not on the output but in the control side! So has much more effect!

Re: [EVDL] From my nissan leaf .com: Why the Leaf 12v system undercharges the 12v battery.

I think that's normal, there has to be some electronics one for remote to work? My hybrids did this too, in fact, even my old 1994 estima does this, no remotes. -Original Message- From: EV On Behalf Of Glenn Brooks via EV Sent: Wednesday, 21 April 2021 4:46 pm To: p...@ingineerix.com;

Re: [EVDL] From my nissan leaf .com: Why the Leaf 12v system undercharges the 12v battery.

The leaf battery behaves much like the 12V Prius battery in my experience. They both seem to fail earlier than they should, but when should they fail? That is "opinion". The failure mode is different, probably because they don't fail by not turning a started motor? So you don't know capacity is

Re: [EVDL] J1772 vs Nema flat blade insertion cycles for EV

I have converted one, the older wide body leaf charging cable has a 200V 60hz transformer. Here, the frequency is 50hz so already 20% higher flux density from that. They burn out on 240Vac 50Hz dure to transformer saturation. I took the transformer out, could have got it rewound for the required

Re: [EVDL] Updating old EV truck with genset?

yes, on yoytube. - Original Message - From: "EVDL Administrator via EV" To: "Electric Vehicle Discussion List" Cc: "EVDL Administrator" Sent: Wednesday, February 3, 2021 7:36:00 AM Subject: Re: [EVDL] Updating old EV truck with genset? On 2 Feb 2021 at 13:26, paul dove via EV wrote:

Re: [EVDL] DC - DC Iota DLS-55/IQ4

Many devices are 88 to 264V, that will just work. -Original Message- From: EV On Behalf Of paul dove via EV Sent: Friday, 28 August 2020 6:30 am To: ev@lists.evdl.org Cc: paul dove ; David Delman Subject: Re: [EVDL] DC - DC Iota DLS-55/IQ4 The DLS-55 is designed to run off of 120V

Re: [EVDL] EVLN: Audi V2H/Home-charging tech> 12kW DC wallbox &9kW storage

They must have an AC battery. -Original Message- From: EV On Behalf Of evln via EV Sent: Sunday, 9 August 2020 5:10 pm To: ev@lists.evdl.org Cc: evln Subject: [EVDL] EVLN: Audi V2H/Home-charging tech> 12kW DC wallbox &9kW storage

[EVDL] Leaf battery

Hi all, I am considering getting a battery for my leaf, I think there will be many more in USA than NZ, and hopefully at a price I can afford. Does anyone know of a source there? Problem is, it needs to be good, not stored for long and not at or near 100%. Then, I would need to get it

Re: [EVDL] Pune.in EVSE-infrastructure-weakness> e-Bus genset-recharging (v)

"> Consider hybrid cars; they generally get better fuel economy. I'm not an engineer, so I'm treading hazardous waters here, but I'm not so sure I agree." A clue comes from the fact that EV's get their best consumption around town, and ice cars on the open road. As ice can get 35% efficiency,

Re: [EVDL] FW: PowerWheels idea (Vehicle-to-home)

I have been considering this too, seems silly to convert the solar panel power to 50/60Hz AC, into the Leaf, then to DC to charge the batteries again! I am thinking it would be better to have solar always below 360V (lowest leaf battery voltage) and a boost converter or isolated topology to

Re: [EVDL] Leaf BMS

ely, but I look fwd to hearing what others have to say about this... Sincerely, Bob Bath Note: any misspellings of the contents of this message are due to 54 y.o. vision, hyperactive spell check changing what I typed, or fat fingering— not cluelessness. On Aug 13, 2019, at 9:14 PM, George Ty

[EVDL] Leaf BMS

    Has anyone had a good look at the operation of the Leaf BMS. Circuit is very different, and so is the operation. First thing I noticed when I got leafspy was that the BMS works ALL the time, not just above a certain voltage. Leafspy also shows it working on the lowest cells, so it's not

Re: [EVDL] Prius forum question: Prius pack rebuilding

really? I just got rid of 7 Priuses for high self discharge, NHW10's, I still have a number of packs, now 20 years old, only ever found 1 cell with low capacity, and 1 with high internal resistance. They still have over 5 Ah capacity, but i have seen up to an amp self discharge, well some

Re: [EVDL] Buying a leaf, SOH, GID etc

I am thinking, it all depends on what is acceptable range? 50% loss over 5 years, so in a year it's 40%, 2 year 30%, so probably not worth paying NZ$10k (US$6,600) for? -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Willie via EV Sent: 13 December, 2018 11:39

[EVDL] Buying a leaf, SOH, GID etc

Hi all, I am considering buying a used import from Japan Leaf, can someone please explain the terms they use for battery, they advertise like this: " 9 BARS, SOH 68% ", and some people talk about GID and Ah, I do understand electronics, but I don't know what they talking about in relation to

Re: [EVDL] poor 2011 Leaf performance

I know my Prius computers draw a total of 250W standing still. if the leaf was similar, whats 250Wh consumed in an hour even if you did not move. On 07-Dec-18 5:24 AM, Peri Hartman via EV wrote: So, Steve, are you inferring the the 3.2 miles / kWh number could be inaccurate? If it's reasonably

Re: [EVDL] Large Format Cells vs. Small Format Cells for EVs

>From my experience, we had an in-house test company that ran independently, we wanted to know the truth, results are not released to the public but used to improve reliability. The name of the company is at stake. When I see something like a cell phone company that has battery fires I know it's

Re: [EVDL] Large Format Cells vs. Small Format Cells for EVs

It is not a test done on 1 product, it is all work out statistically, it will be something like, "if you test 100 batteries with acceleration factor X for 3 months, then you will be 97% confident it that it will last 10 years in the car." At Gallaghers (electric fence manufacturers) we had 1

Re: [EVDL] Large Format Cells vs. Small Format Cells for EVs

It is the meaning of "lifetime" i think, that is in question, of course not every battery will last 10 years, i should have said "expected lifetime", i guess. On 12-Sep-18 10:48 AM, Jan Steinman via EV wrote: From: "George Tyler" it is all proven science, you can prove a lifetime of 10

Re: [EVDL] Large Format Cells vs. Small Format Cells for EVs

Also worked on SONAR, really interesting stuff. Had a 1,8m high bay full of processors, detecting ship's propeller noise. Each one had the sound of a known ship's prop stored in ROM and did a correlation to find which ship it was. Also did some work on the fire control for the torpedo's. those had

Re: [EVDL] Large Format Cells vs. Small Format Cells for EVs

From a Electrical engineering perspective, the mean time between failures of 6800 cells is terrible but you can lose a lot and still have a functioning car, so I recon he is probably right, but it depends of the MTBF of the 2 types of cells too. I used to design electronics for military,

Re: [EVDL] Honda Insight Lithium Upgrade

I have been considering this too, but for some old Priuses I have. It is not easy! Equallisation is done by overcharging the full cells at 10-15A, can't do that with Lithium! With these cells, which are the same as my prius ones, overcharging is allowed. Also, even with Ni-Mih they are degraded by

Re: [EVDL] Lithium drop in replacements.

I have some headway cells in the original boxes, charge them every few months, if I wait too long some will be 2V and others 3.65, from being equal the time before. I have jigs to measure self discharge directly, a 4 wire very accurate charger with a current measurement, I calculate the self

Re: [EVDL] Lithium drop in replacements.

Another thing, I see the ebike chargers have 2 voltage pots, I think one is for the ballance charge, at reduced current. Have anyone seem this? On 12-May-18 6:47 AM, paul dove via EV wrote: Thanks that was interesting. It’s more likely that the Dakota BMS was causing the imbalance with

Re: [EVDL] Lithium drop in replacements.

I have used headway cells, headway specs them as 5% per month self discharge! so have close to zero, worse is 5 in practice. found it to be a big problem, if you charge every day it's ok, but the ebike i got them for may go a while without charging, also, If it is not left on charge long

Re: [EVDL] Genset range extender

He only wants 30 kw, many engine could do this at lower rpm. Low rpm is not a problem as long as it is high enough to keep the oil pressure up and not cause vibration that may cause crankshaft failure. -Original Message- From: "Lee Hart via EV" Sent: ‎5/‎03/‎2018

Re: [EVDL] 3 phase range extender?

I have done something like this, but on a smaller scale. Simple approach, run engine at 1/2 or 3/4 throttle, control excitation to control engine revs, if you want more power, REDUCE excitation! No regulator. Use 3 ph bridge, ripple frequency is 360 Hz depending on speed, and alternator

Re: [EVDL] Suspicious calb cell

Sounds reasonable, but surely the charge current is much less than the discharge, so voltage drop on discharge will triggrer low charge cutoff for the pack long before this becomes an issue with charging? I have had problems with high self discharge on headway cells, still within spec of 5%

Re: [EVDL] EVLN: e-NV200 campervan on 3week road.nz trial

I saw it! at the charging station in Cambridge  NZ, opposite the town hall, which is the nearest town to me. Green "Jucy" van, very small for a campervan. On 09-Feb-18 6:46 PM, brucedp5 via EV wrote:

Re: [EVDL] Anybody interested in 2012 Leaf minus battery and Airco?

Pity it is left hand drive, I would buy the whole car and ship to nz -Original Message- From: "Cor van de Water via EV" Sent: ‎3/‎06/‎2017 08:24 a.m. To: "ev@lists.evdl.org" Subject: [EVDL] Anybody interested in 2012 Leaf minus battery and Airco? I

Re: [EVDL] Most efficient hub motor for 20" wheel

If you use that ebikes.ca calculator, set the controller current limit well above what the motor can handle, you will see maximum power at close to 50% of maximum RPM, this is at full throttle, and current only limited by the motor resistance. At that 50% speed efficiency is also around 50%.

Re: [EVDL] Most efficient drive system for a bicycle/tricycle.

Have a look at ebikes.ca , they have a setup that is basically a hub motor used like mid motor run at a higher voltage and RPM than it is normally used at, called the "strokemonkey". A 24V, 1kw motor used at 48V gives 2kw. There is a calculator on there that is very helpful. Verne Pavreel who

Re: [EVDL] EV to Hybrid Trailer

How about using a front end cut from a Prius as a trailer? Keep the drive shafts etc, everything just as it is. Then, it is a pusher trailer plus charger with extra regen braking too. There would be a number of ways of doing this, if you want it simple, don't use MG2 Just MG1, and control the

[EVDL] FW: Video with new music.

Verne has problem posting on here, although I set up an account for him some years ago. He is blind, so working a computer is not as easy as for sighted people. You can see him in this video. From: verne.pavr...@gmail.com [mailto:verne.pavr...@gmail.com] Sent: 16 February, 2017 7:04 PM To:

Re: [EVDL] Any truth in these claims?

Some time ago I discussed a system on here this was similar in a way, trying to reduce the number of cells. I talkinged about going all the way, ONE cell. 10,000 Amps at 4V for an exercise. There are fets now that are 1mOhm or below, I had many phases in my proposal, so does this. Many phases

Re: [EVDL] Generator?

oprietary information of Proxim Wireless Corporation. If you received this message in error, please delete it and notify the sender. Any unauthorized use, disclosure, distribution, or copying of any part of this message is prohibited. -Original Message- From: EV [mailto:ev-boun...@lists.evdl.or

Re: [EVDL] Generator?

Verne Pavreal asked me to post this: Some time ago he and I were discussing a range extender generator for an electric Nissan NV200 van he wanted to buy, came up with the idea of using the front end of a Toyota NHW10 Prius, I have a few. A friend of both of us in Auckland, George Spratt, has used

Re: [EVDL] AC induction motor, rotor heating up..

If there is no slip then the current in the rotor is zero, no matter what the current is in the stator. Rotor has a L/R ratio, and has an amount of slip that produces the maximum current, more than this slip and the current in this rotor drops off due to the rotor inductance. Talking about motors

Re: [EVDL] 2nd life for lithium batteries

Accelerated life testing is a science on it's own. A friend of mine has made a career out of it, runs a network of Labs for a huge medical electronics company. We worked for the same company twice through the years, he did the testing for a lot of the electronic products I designed. What

Re: [EVDL] Current limiting

In the early days of switchmode PSU's it was common to use N.T.C. resistors for inrush current limiting, later on we went away from that. Look at PC power supplies from the '80s and '90s at least, they have a 1 Ohm, 5 W resistor in series (for a 230Vac PSU. The problem with an NTC is they stay

Re: [EVDL] EV-Spotting in London

If you drive through the countryside (like I did last year) you will see solar huge farms. One was a fiels of solar panels about 1km long by 500m wide. Thought UK was the worst place for solar due to the weather -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf

[EVDL] Japanese leaf charging cable

Hi, here in NZ many people are importing used Nissan Leaf's from Japan. Japan has different voltage and frequency to the supply here, leaf charging cable: 200V 60hz, NZ voltage 230V 50Hz. There is a small transformer in the cable that has to be changed, but opening the cable means that it has to

Re: [EVDL] EVLN: Eloise is the cutest solar + electric vehicle ambassador (v)

Makes perfect sense, after every hour they are producing 2 kW more, so after 10 hours they are producing 20 kW, after 1000 hrs, 2 MW! In NZ we have this kind of mistake on TV, from our energy conservation authority, EECA! They just seem incapable of understanding the basic science, They employ

Re: [EVDL] Bicycle battery

Have you guys heard of lithium-sulphur cells? http://www.oxisenergy.com I am travelling in the UK at the moment, and the friend I am staying with told me that this company is not far from where we are, we are going to arrange a visit. -Original Message- From: EV

Re: [EVDL] Watch Malfunctioning meter. on YouTube

It is clearly the sun causing the problem. Some years ago I was designing RFID readers for cow tags, I found that the tags themselves were sensitive to sunlight! In fact, any chip that does not have sunlight positively excluded is this meter will probably have a chip bonded to the bottom of

Re: [EVDL] co-operation

via EV ev@lists.evdl.org wrote: - Original Message - From: George Tyler via EV ev@lists.evdl.org To: 'brucedp5' bruce...@operamail.com, 'Electric Vehicle Discussion List' ev@lists.evdl.org Sent: Thu, 25 Sep 2014 14:43:05 -0600 (MDT) Subject: [EVDL] co-operation In this forum we

Re: [EVDL] co-operation

Yes, so take it out of the realm of DIY by having a world wide not for profit company that does it, all you guys shareholders. In this company an individual can make profits on conversions done for others. It's the same in NZ, incentives are only for registered companies. These

[EVDL] co-operation

Elon Musk says that America is the easiest place to get any new thing going, and he is probably right. There are more EV conversions in USA than anywhere else, and there are people doing it commercially. Why has this market not taken off? In this forum we have all the skills necessary to set up

Re: [EVDL] Dissimilar metals on Headyways?

I had a look at the headway factory interconnects, they are plated steel I think as they are magnetic, could be nickel but they were strongly attracted to a magnet so I think steel. 1mm thick, 20mm wide. ___ UNSUBSCRIBE:

Re: [EVDL] co-operation

September 2014 8:58 a.m. To: EV Subject: Re: [EVDL] co-operation - Original Message - From: George Tyler via EV ev@lists.evdl.org To: 'brucedp5' bruce...@operamail.com, 'Electric Vehicle Discussion List' ev@lists.evdl.org Sent: Thu, 25 Sep 2014 14:43:05 -0600 (MDT) Subject: [EVDL] co-operation

Re: [EVDL] Dissimilar metals on Headyways?

Why not just buy the link plates that headway sell, made for the purpose. Get the cell mounts at the same time? -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Michael Ross via EV Sent: Tuesday, 23 September 2014 11:41 a.m. To: EVDL Administrator; Electric

Re: [EVDL] Lithium batteries direct from China

Have you ever tested Enerdel batteries? Lee Hart wrote: My earliest ones were from a group buy organized by Victor Tikhonov in 2003. They were white prismatic Lithium-Cobalt cells, in both 90ah and 100ah models. Some of the 100ah cells were OK (maybe 3 out of 4 worked, but didn't meet specs).

Re: [EVDL] Hybrid Mustang: motorcycle drivetrain?

Also, the Prius uses a drive chain from the power split device to a shaft carrying a gear which drives the diff. -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Lee Hart via EV Sent: Thursday, 7 August 2014 5:18 a.m. To: Electric Vehicle Discussion List

Re: [EVDL] Dissimilar metals on Headyways?

Are you sure the ends are aluminium? Without the screw terminals they are connected by nickel strips spot welded to the ends, not sure you can spot weld nickel to aluminium. I think they are plated steel. -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of via EV

Re: [EVDL] Dissimilar metals on Headyways?

I have both types, just checked them, no sign of aluminium anywhere -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Michael Ross via EV Sent: Thursday, 18 September 2014 11:43 a.m. To: evdragra...@email.com; Electric Vehicle Discussion List Subject: Re:

Re: [EVDL] BiPolar NiMH (was: Kawasaki Concept J 3wheel GIGACELL powered EV)

I can only talk about the D Cell battery of the original Prius, I have worked on many of those, changed many cells, tested them to see what is wrong, etc. I have not seen ANY lose capacity. What happens is some cells suffer from increased self discharge. I measure at 1.270 V, this is about where

Re: [EVDL] Electric bike information

-Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Peter Eckhoff via EV Sent: Thursday, 28 August 2014 5:50 a.m. To: Larry Gales; Electric Vehicle Discussion List Subject: Re: [EVDL] Electric bike information Hello Larry, This is a nice summary and I did not

Re: [EVDL] EVLN: Vehicle-apartheid! RI law punishes EV hybrid drivers

Funny, I phoned the council not long ago to ask them to do something about speeding cars in the rural dead end street past my house. They said they would only do it if someone was killed or injured. I know of other similar events where people were killed before they changed anything. It's all

Re: [EVDL] Hybrid Mustang: AC or DC?

That Mustang is probably worth more than a new electric car in some parts of the world. Sell it and buy a car that would make a better electric with the money? http://www.trademe.co.nz/motors/used-cars/ford/auction-748754922.htm -Original Message- From: EV

Re: [EVDL] EVLN: BMWDaimler developing 3-Hour Wireless Inductive EVSE for i3 EV

I have done a lot of transformer and inductor design over the years, always said you can't focus or direct a magnetic field, apart from ordinary magnetic materials of course. On day I found something that someone had put together on the web: He pointed out that if you have a resonant coil in a

Re: [EVDL] How crazy am I?

I have been looking at this, seemed to me that for the capacity, smaller batteries can discharge a higher current, I guess that's why Tesla uses 7000 small cells? R/C batteries are often rated at 90C or even greater, I have seen 300C. Look at this:

Re: [EVDL] EV LCD Dashboards

I thought this was something that I would have liked to be the designer of! Wireless Advisor http://elithion.com/diyelectriccar.php#Demo http://elithion.com/bms_user_interface.php http://elithion.com/diyelectriccar.php -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On

Re: [EVDL] Trailer type Range extenders

If I was in America I would consider making something like that to hire out to Tesla owners. or leaf, Mie v etc -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Larry Gales via EV Sent: Thursday, 10 July 2014 6:27 a.m. To: ev@lists.evdl.org; SEVA Subject:

Re: [EVDL] Gas tax is not working to cover the entire road maintenence budget

Amazing thing is that even though your fuel tax is so low you still have so may EV's historically, done more for the development of EV's than any other country. It must be a great place to live in. -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of EVDL

Re: [EVDL] [EVADC Listserve] Exploding cell

Was the module you were charging in a pack? i.e. was it compressed mechanically by the end plates? There modules will explode if you charge them without pressure being applied to the sides. I have also seen modules that are properly mounted that have had an internal explosion in a dead cell.

Re: [EVDL] Exploding cell

Cell voltages actually drop after they are fully charged, less so at high rates like the 3C of the in-car equalisation charge of the early prius , charge termination often involves detecting a -delta V. the Ni-mih cells in a Prius often suffer from differential high self discharge currents and get

Re: [EVDL] Thermistor to use with 7cell Nimh pack.

The original Prius (NHW10, the one only sold in Japan) used 2 different thermistors, there is a string with 1 thermistor per cell and another 4 thermistors per whole 1/2 pack of 120 cells. The 1 per cell thermistors work very suddenly, almost like a switch and are all in series so are monitored as