Re: [EVDL] miniature train EV project

2020-10-22 Thread Lee Hart via EV
Peri Hartman via EV wrote: Are you sure 24V is safe ? Yes, at low current, and it could be current limited. But in that case there's probably not enough current to be a significant part of running the motor. UL considers voltages less than 24vac and 8 amps maximum as a "safe" class-II

Re: [EVDL] Miles consumed for altitude

2020-10-14 Thread Lee Hart via EV
EVDL Administrator via EV wrote: On 14 Oct 2020 at 6:09, Jay Summet via EV wrote: Regeneration is only about 20% efficient. So they say - at least here on the EVDL. I've read similar declarations for decades. But those statements aren't in accord with the data in the link I provided.

Re: [EVDL] [External] Re: EV drivers locked-out 1+hrs> network down

2020-10-06 Thread Lee Hart via EV
George Mullineaux via EV wrote: Frankly, I use my phone to call people. Of course, it is not a smart phone and all it will do is call people. I thought that was what a phone was for, silly rabbit! No, no, no! People use their cellphones for everything *except* making phone calls. They

Re: [EVDL] Design News: General Motors Slashes Battery Wiring by 90 Percent

2020-09-24 Thread Lee Hart via EV
Mark Abramowitz via EV wrote: How much extra energy does it require? 1%? 10%? 0.01%? Exactly. Who knows? Probably GM; but they didn't say. It could be a lot, or a little. It all depends on what they're using. If it's something like wifi, it's a lot. If it's something like RFID, it's very

Re: [EVDL] Big Oil’s green makeover

2020-09-18 Thread Lee Hart via EV
Mark Abramowitz via EV wrote: I don’t disagree, but neither do I care. I don’t want a company holding on to a business that doesn’t work for them. I’d rather they sell it to someone interested in making it work. The problem with that is that if the business is poor, they can't get anything

Re: [EVDL] Big Oil’s green makeover

2020-09-17 Thread Lee Hart via EV
From: "Mr. Sharkey via EV" >Essentially 100% of photovoltaic production is from China these days. >Without research, I couldn't name a single U.S producer of PV >modules, and the BOS equipment is mostly assembled in China as well. Sunpower is the only US maker of PV panels that I can think

Re: [EVDL] Big Oil’s green makeover

2020-09-17 Thread Lee Hart via EV
From: Mark Abramowitz via EV > Wouldn’t you expect that these large oil companies would have the ability > to weather industry downturns, improve the technology, and remain around > to service warranties, like Siemens, as opposed to a smaller company? One might naively expect it; but history has

Re: [EVDL] Big Oil’s green makeover

2020-09-16 Thread Lee Hart via EV
From: Peri Hartman via EV >But adding ESVEs to existing service areas at >interstate exits is a poor compromise. I can't think of a more >unpleasant place to spend 30-45 minutes: a convenience store with >asphault all around it. No where to go except 2 or 3 other gas stations. >Maybe a diner

Re: [EVDL] keeping LeeH connected: How far ...

2020-09-08 Thread Lee Hart via EV
evln via EV wrote: There are ways around not having a strong internet connecion to view youtube videos. You could use https://x2convert.com to convert the streaming video's audio to a .mp3 file you could download and listen to. If I remember correctly, years ago, Lee held bragging-rights to

Re: [EVDL] How far can you go?

2020-09-07 Thread Lee Hart via EV
Paul Compton via EV wrote: Fell down the Thames TV archive rabbit hole and came across this report on the 1973 oil crisis. Note the fuel consumption of the Ford Thunderbird and its tank capacity. "I'll buy an EV once it can go the same distance as a full tank of fuel"

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

2020-08-27 Thread Lee Hart via EV
Lee Hart via EV wrote: But if you're determined to proceed, I think the modifications were written up and are in the EVDL "files" section somewhere. EVDL Administrator via EV wrote: http://evdl.org/pages/iotamods.html That's it! Thanks, David. :-) Another approach that wil

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

2020-08-27 Thread Lee Hart via EV
paul dove via EV wrote: The DLS-55 is designed to run off of 120V AC... Thus you need an ~170VDC source to equal the rectified 120VAC voltage. 202VDC would be too much and most likely blow something I agree. I've reverse-engineered some of the Iota DLS-supplies, and all of them had a simple

Re: [EVDL] Intimidating public EVSE> crack den on left, cat house on right

2020-08-26 Thread Lee Hart via EV
EVDL Administrator via EV wrote: I say make the car companies put in charging like Tesla. Would you really want this? Would you want GM to build filling stations too? Think about it. Would you want EVs - or ICEVs, for that matter - to be like inkjet printers? Look how much OEM ink

Re: [EVDL] OT: Re: FrankenVolt photos posted

2020-08-25 Thread Lee Hart via EV
From: Robert Bruninga via EV >Regarding making my web pages not need the .html extension... >The right answer for saving a NOTEPAD file without an automatic .TXT added >was provided by Gail and is so obvious now that I see it Ah, good; you solved it! I'm using .HTM for my web page extensions. I

Re: [EVDL] OT: Re: FrankenVolt photos posted

2020-08-24 Thread Lee Hart via EV
Mark Abramowitz via EV wrote: Good for both of you. After a few decades of resisting on that, HTML mail, top-quoting, and my other pet peeves in the computer world, I’ve raised the white flag of surrender. But kudos to those that haven’t. I’ll remain ready to cheer you on. Congratulations

Re: [EVDL] [External] EVLN: Tesla-Y feels like it’s not towing anything

2020-08-20 Thread Lee Hart via EV
paul dove via EV wrote: If your car reports Wh/m then just drive it while towing and record the consumption. The Tesla can do this. Then just divide by the battery capacity to get range. Good point! Most EVs have instrumentation that provides a much easier way to measure power

Re: [EVDL] [External] EVLN: Tesla-Y feels like it’s not towing anything

2020-08-18 Thread Lee Hart via EV
Peri Hartman via EV wrote: Won't it also make a large difference overall, depending on the tow vehicle? If the trailer fits in the trailing vacuum, I would think there would be less resistance than if it were punching a new hole. I suspect this could have a larger difference than the frontal

Re: [EVDL] [External] EVLN: Tesla-Y feels like it’s not towing anything

2020-08-18 Thread Lee Hart via EV
Luke Scharf via EV wrote: We need a way to rate the trailer's drag, as well as its weight. One possibility is a roll-down test. Accellerate the vehicle to speed, put it in neutral, and measure the time and/or distance to coast down to a lower speed. Obviously, do it on flat ground when

Re: [EVDL] [External] Re: Fast Charging Various Companies CCS Chevy Bolt

2020-08-13 Thread Lee Hart via EV
George Mullineaux via EV wrote: Here at work, we have some evs for moving equipment and boom lifts. I was under the impression that the slow charge after the 80% level was for deep charging. We have two trolleys that have been charged in this manner for 6 years on the same batteries. I wonder

Re: [EVDL] Speaking of BB600s

2020-08-10 Thread Lee Hart via EV
David Kerzel via EV wrote: Look at caswell.com for electroless nickel plating kits. If the copper is just a conductor, I don't care about tarnish on the non-mating surfaces. Where the bars meet, or the wires attach, polish the copper and use an ant-ox compound. I like brass bolts and nuts with

Re: [EVDL] Bicycle motors

2020-08-06 Thread Lee Hart via EV
Jay Summet via EV wrote: If you want the fancy expensive in-wheel bolt-on kit... Or, if you're the DIY type (or cheap), it's mighty easy to make an e-bike for under $100. For 20 years, I did school EV projects with 4th-6th grade kids. We called our group BEST (Bridging Engineering Science

Re: [EVDL] 2012 Nissan Leaf available in Boston -- update to my June post

2020-08-05 Thread Lee Hart via EV
EVDL Administrator via EV wrote: From Beth's previous post on this car, we know that the car won't power up. The dealer says the battery has at least one failed cell. We don't know how accurate that evaluation is. I have a Leaf, and must say I don't particularly trust my dealership's advice,

Re: [EVDL] EVLN: Zoe EV converted for use as a micro e-van r:245mi

2020-08-02 Thread Lee Hart via EV
Mr. Sharkey via EV wrote: I would run up against at's 8gb data limit way before the end of the month because today's web pages have so many ads, and auto-stream videos, etc. that eat data voraciously I think this part of your post verifies David's concerns about Yahell very nicely. That's

Re: [EVDL] Leaf Busbar Ampacity

2020-08-02 Thread Lee Hart via EV
Mr. Sharkey via EV wrote: Beware! Copper water pipe is not pure copper, but is composed of alloy, you won't be getting the conductivity of 99% copper. Also, crushing and drilling pipe is time consuming and messy, the drilled holes can't be properly deburred, and the possibility of

Re: [EVDL] prius as generator (two-phase 240 VAC)

2020-08-01 Thread Lee Hart via EV
Robert Bruninga via EV wrote: I was talking about 240V split phase which is the standard in the USA. ANd split phase is the same as two-phase (180 degrees apart). No; split phase is not the same as 2-phase. Split phase is just single-phase 240v with a center-tap. You get 120v each side of

Re: [EVDL] prius as generator

2020-07-30 Thread Lee Hart via EV
EVDL Administrator via EV wrote: On 30 Jul 2020 at 10:58, Robert Bruninga via EV wrote: no mention of 240 VAC two phase? I'm not an EE, but I don't think that such a thing exists anywhere, at least not as commercial power. The US does have 240v split phase, but that's single phase. I

Re: [EVDL] prius as generator

2020-07-29 Thread Lee Hart via EV
John Lussmyer via EV wrote: I have a 5kw on order for testing. Maximum VDC of 450 will, I think, require some adjustment in the way I've been doing things. Except that the 450VDC Max is only for the PV Input which has a MPPT controller. I've read several places that a MPPT setup does not

Re: [EVDL] prius as generator

2020-07-29 Thread Lee Hart via EV
Robert Bruninga via EV wrote: If you can find an off-grid inverter with 300 VDC input then I sure want to know about it! Really... that is the holy grail... Bob, I have an Aerovironment SPC-2000 off-grid inverter. The solar input is 150-600 VDC, 8 amps max, and the output is 115/208/230vac

Re: [EVDL] EV AC cooling efficiency vs ICE

2020-07-29 Thread Lee Hart via EV
Haudy Kazemi via EV wrote: Bob, I don't think anyone other than yourself can give you an 'OK' to change your conclusion, if doing so pleases you :) That said, I think an estimated range of 4-15x is too high. 15x does seem high. But it is obviously "a lot". I've left my Leaf parked with the

Re: [EVDL] EV AC cooling efficiency vs ICE

2020-07-27 Thread Lee Hart via EV
Robert Bruninga via EV wrote: A huge advantage of EVs is sitting at an event (or drivein movie) in AC comfort on a hot day without an engine running. Id like to come up with some numbers to describe the total heat generated by an ICE at idle running its AC compared to an EV. Here is a

Re: [EVDL] diode SR 4180 R 1 / motorola

2020-07-26 Thread Lee Hart via EV
Austin19 via EV wrote: I need to know where i can purchase this diode SR4180R or the equivalent it goes in a golf cart controller If this is the diode in a Curtis controller, I have been using the MUR2020RG as a replacement for it. Contact me off-list if you only need a few. Or you can

Re: [EVDL] Faking out your EV so it will accept solar input while driving.

2020-07-25 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: Commercially available Sunpower cells. Panels will not work. Well, they could. Some of Sunpower's panels are flexible. They also sell the cells separately, but using them is a LOT more work (the sort of things that the solar raycer teams will do). Sometimes

Re: [EVDL] EVLN: $40k Nissan Ariya fwd .jp EV r:300mi

2020-07-25 Thread Lee Hart via EV
EVDL Administrator via EV wrote: So, those are such great cars that sell well - why aren't they being sold in the US? Could it possibly be because the demand for small cars isn't there? Sure. Small cars don't sell well here. They never have. it's cultural. America is the land of the

Re: [EVDL] prius as generator

2020-07-25 Thread Lee Hart via EV
redscooter via EV wrote: I want to do a prius 12vdc battery to 120 vac invertor. which of the prius can do this meaning, turn the car on, turn off all the extra loads, turn on invertor. Which years or gen /s will stay on and keep charging the 12 vdc battery?? some talked about using the manal

Re: [EVDL] EVLN: $40k Nissan Ariya fwd .jp EV r:300mi

2020-07-25 Thread Lee Hart via EV
Mark Abramowitz via EV wrote: OEMs were never “shamed” into bringing EVs into U.S.. Regulations, and the cost of NOT doing so did it. Willie via EV wrote:> Well, "the cost of NOT doing so" is, at least in part, from the threat of losing their ICE market. That, due to Tesla success in

Re: [EVDL] EVLN: $40k Nissan Ariya fwd .jp EV r:300mi

2020-07-24 Thread Lee Hart via EV
From: Peri Hartman >I want a cheaper Tesla, too. But I think Willie is right. If Tesla had >tried to make a cheap model sooner, they would have only sold a trickle. >That's not a good way for a startup to survive. Selling into to the >masses will be a low profit cut throat market. I think that

Re: [EVDL] Faking out your EV so it will accept solar input while driving.

2020-07-24 Thread Lee Hart via EV
jkenny23 via EV wrote: I think what you're looking for is the Lightyear One. https://lightyear.one/ A modern, amazingly efficient EV, with solar roof. But since it's so niche, as described before, it will cost you around $170k :) Maybe more... or maybe less. It all depends on how many they

Re: [EVDL] Faking out your EV so it will accept solar input while driving.

2020-07-23 Thread Lee Hart via EV
From: EVDL Administrator via EV > Lawrence, you really seem to be pining for a Stella Lux... It's clearly > a technical tour de force, and I'd love to see it go into to production. > However, I doubt very much that you or I will ever be able to buy one, > or anything similar. I agree with David,

Re: [EVDL] EVLN: $40k Nissan Ariya fwd .jp EV r:300mi

2020-07-23 Thread Lee Hart via EV
Michael Ross via EV wrote: I always thought they took the buffer from both the high and low ends of SOC%. You don't want to totally deplete or charge a pack to get the longest life from it. I agree. We know that cells are damaged by either over-charging or under-charging. We also know that

Re: [EVDL] Faking out your EV so it will accept solar input while driving.

2020-07-22 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: >> Cars can carry 1,500 watts of solar using Sunpower cells. That means >> every spot. Hood, top and trunk... Alan Arrison via EV wrote: Where are you getting your cells, from NASA? You couldn't get 1500 watts even if you covered the sides and all the windows too.

Re: [EVDL] Solar powered vehicle panel requirements.

2020-07-12 Thread Lee Hart via EV
From: Peri Hartman via EV >Using a small scale wind tunnel just triggered an idea. How hard would >it be to make a 3D printed model of your car ? (Pretty hard when you >have to consider that it's every tiny bump that makes a difference in >wind, but doable.) How about if he finds a plastic

Re: [EVDL] Solar powered vehicle panel requirements.

2020-07-12 Thread Lee Hart via EV
When I put a small flat 4'x6' utility trailer on my Prius, the mileage went from 55 down to 40! And that was with no load or added wind drag other than the trailer. So it is quite silly to think one can add a trailer to get SOlar without losing more in the trade! Aerodynamics is funny stuff.

Re: [EVDL] Solar powered vehicle panel requirements.

2020-07-11 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: I commonly get much better range. My indicator of accumulated data says 4.9 miles per kwh. Your mileage may vary. Lawrence Rhodes-- That's exactly the same as our 2013, Lawrence. We must be doing something right. Lee Hart -- If happiness is on your mind,

Re: [EVDL] Long Range EVs, hybrids trade offs $18k (Corona Discount)

2020-07-11 Thread Lee Hart via EV
Peter Eckhoff via EV wrote: about 4 hours. I visited one dealer in particular and the service tech saw the charger was ICE'd and he ran on it, got the key and moved the offending vehicle without asking! That's a pleasant contrast from our local Chevy dealer. A friend wanted to buy a Volt.

Re: [EVDL] Solar powered vehicle panel requirements.

2020-07-11 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: It's a math problem that can't be solved. At least not with today's technology. I think it is a weight problem that can be solved with today's technology...at least by students in Holland. Of course you can't do it with the piggy Tesla's and Bolts. Something much

Re: [EVDL] LiFePO4

2020-07-10 Thread Lee Hart via EV
EVDL Administrator via EV wrote: Not so fast there. The EV economy of scale we've been talking about for 25+ years is finally happening, at least in Europe and Asia. Thanks for the additional info, David. I liked this reference: Prices of EVs in general are much lower in China than

Re: [EVDL] LiFePO4

2020-07-10 Thread Lee Hart via EV
EVDL Administrator via EV wrote: Elon Musk promised us a $30k Tesla. He didn't deliver one... Get that bloody Model 3 down to the price it was supposed to be, $30k. Then introduce a couple of cheap and cheerful little basic hatchbacks the size of, say, a VW Up and a Peugeot 208. Price them

Re: [EVDL] Long Range EVs, hybrids trade offs $18k (Corona Discount)

2020-07-10 Thread Lee Hart via EV
Mark Abramowitz via EV wrote: Early Leafs were $10,000 not long ago. A hybrid? “Give a hoot, don’t pollute!” Well, my only ICE car is a plug-in Prius. I had to buy it used in Massachusetts to get it, as Toyota won't sell them here. It has about a 20-mile range as an EV, which is enough for

Re: [EVDL] LiFePO4

2020-07-10 Thread Lee Hart via EV
Peter Eckhoff via EV wrote: Okay. I hear you. I splurged. Instead of keeping my cars 16 years and running them into the ground, I went ahead and purchased something that is normally out of my price range. So why? [reasons snipped...] They are good reasons, Peter. Being first always costs

Re: [EVDL] LiFePO4

2020-07-10 Thread Lee Hart via EV
Willie via EV wrote: I assume you have by now looked at the supercharge.info map as suggested. I haven't until now. I have a Leaf (not a Tesla), so supercharger sites are useless to me. My EV also has a range of less than 100 miles, so charging sites spaced farther apart wouldn't help me

Re: [EVDL] LiFePO4

2020-07-09 Thread Lee Hart via EV
Willie via EV wrote: Charging is no longer an issue. Most everyone is within 50 miles of a SuperCharger and SuperChargers are (intelligently) spaced about 100 miles apart on essentially all major routes. Well; if you live in the USA on the east or west coast. But they are few and far between

Re: [EVDL] LiFePO4

2020-07-09 Thread Lee Hart via EV
>From: paul dove via EV >I would say that is only because people fictionally think they need a 300+ >mile range. My i-MiEV goes 40 miles now after 8 years 65 miles new and rarely >will it not go where I need to go... I love that car and while the range cuts >it close sometimes I think With 100

Re: [EVDL] Postal service vans catch fire. Should be replaced by Electric.

2020-07-08 Thread Lee Hart via EV
Peter VanDerWal via EV wrote: Not sure about way back then, but the average Rural postal route these days is around 45 miles. I believe the mail Comuta-Vans had a daily usable range of around 25-35 miles. Lee (and a few others) would know for sure. Hi Peter, 25-30 miles is about right for

Re: [EVDL] Postal service vans catch fire. Should be replaced by Electric.

2020-07-08 Thread Lee Hart via EV
Mr. Sharkey via EV wrote: Similarly, I think that the six SCT Rabbit conversions that were in fleet service for the city of Portland, OR in the 1980's got a similar reception from the city employees that were "forced" to drive them... Designing ~any~ vehicle to be difficultly different from

Re: [EVDL] Postal service vans catch fire. Should be replaced by Electric.

2020-07-08 Thread Lee Hart via EV
Mark Abramowitz via EV wrote: Short range? I thought that USPS vehicles actually don’t go many miles. At the time my dad worked there, the postal vans were only used for "mounted" (rural) routes, which could be quite long in sparsely populated areas. Urban routes were generally done on

Re: [EVDL] Postal service vans catch fire. Should be replaced by Electric.

2020-07-08 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: I was around when a pilot EV program in Alameda was scrapped because the postal workers wouldn't plug in the vehicles. They all died in a week. That's one story. We dismantled the chargers. Vans were auctioned off. Here is the result:

Re: [EVDL] Best Leaf tires.

2020-07-04 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: I am getting an average of 4.9 miles per kwh. Looking for tires that meet or better, surpass this. Lawrence Rhodes On Saturday, July 4, 2020, 09:35:02 AM PDT, Bruce Wolfe wrote: I replaced the tires on our 2013 Leaf earlier this year with Bridgestone

Re: [EVDL] EVLN: Lordstown Endurance pickup e-truck> 4 in-wheel e-motors

2020-06-29 Thread Lee Hart via EV
Christopher Darilek via EV wrote: Are we still laughing at hub motors? Unsprung weight? Or does Lordstown know what they're doing? Wheel motors can work; there are certainly enough real-world examples, ranging from bicycles and scooters, to railroad locomotives and large earth-moving

Re: [EVDL] Electric Truck Cement Mixer

2020-06-25 Thread Lee Hart via EV
>> I would like to see one day an electric garbage truck for metropolitan areas >> (short range needed) that is silent, clean and efficient. Wouldn't it be >> great >> to see a refuse company deadening. From: John Lussmyer >I saw one at a car show in Oregon a few years ago. I saw one in the

Re: [EVDL] Ego vs Greenworks?

2020-06-25 Thread Lee Hart via EV
I've never owned a gas mower. I used a rotary push mower for years, then a "Rally" corded electric mower. I used it with a cord for 5-6 years, then added a 120v pack of Gates lead-acid "D" cells to make it cordless, and used it another 5-6 years that way. In fact, I still have some of those

[EVDL] Supercaps in EVs

2020-06-25 Thread Lee Hart via EV
A surplus house I occasionally buy from is offering these 2600 farad 2.6v "boostcaps" for $36. https://www.goldmine-elec-products.com/prodinfo.asp?number=G24932_source=Goldmine_campaign=9211b9afc8-MAY23-2014_COPY_01_medium=email_term=0_15cb8e0368-9211b9afc8-60186738 They claim they are used in

Re: [EVDL] Iota DLS-55 on a 96v battery

2020-06-22 Thread Lee Hart via EV
Matt via EV wrote: Hi All, I have a conversion that used to run a 144v battery (45 x TS 160AH cells). I have replaced the battery with a 96v nominal battery (32 x CALB CA 130Ah cells) and the DC-DC (IOTA DLS-55) seems to be low on output voltage, due to the input voltage being below 130vdc. I

Re: [EVDL] [External] Re: George's farm truck/van EV project

2020-06-22 Thread Lee Hart via EV
Peter VanDerWal via EV wrote: Toyota has stated that they don't intend to make electric cars anytime in the near future. They claim that hybrids are a better use of battery technology. Is that Toyota *America*, or the head office in Japan? I can see the American division saying they won't

Re: [EVDL] Car-size fire-blanket smothers EV li-ion fire reignitions

2020-06-22 Thread Lee Hart via EV
Bill Dube via EV wrote: This would work for lead acid, where the electrolyte is water based, but li-ion cells have an organic solvent based electrolyte. An additional problem is that the electrolyte is mostly held in the separators between the plates. Depending on the specific type of

Re: [EVDL] Chevy Bolt EV towing capacity NOT!

2020-06-21 Thread Lee Hart via EV
Willie via EV wrote: It really depends on your anal retentiveness or how risk averse you are. EVDL Administrator via EV wrote: And on whether you're willing to discard the warranty on a $30K+ vehicle. Willie via EV wrote: Agreed. The risk averse should not install a trailer hitch on a car

Re: [EVDL] George's farm truck/van EV project

2020-06-19 Thread Lee Hart via EV
Haudy Kazemi via EV wrote: In all this discussion...I don't think I saw using a car + small 4x8 or 5x8 utility trailer mentioned... An excellent point, Haudy. A trailer is obviously a good work-around if your car/truck can't handle what you need to carry. It's less desirable, for the

Re: [EVDL] [External] Re: George's farm truck/van EV project

2020-06-19 Thread Lee Hart via EV
Peter VanDerWal via EV wrote: The most egregious strategy was denying the NiMH battery to BEVs. Perhaps, but it does seem to have encouraged the use of LiIon batteries instead, for EVs, which is a far better technology. Well, I think it is a mistake to deliberately hold back a practical

Re: [EVDL] LRR Tires: Research tips?

2020-06-18 Thread Lee Hart via EV
From: Mr. Sharkey >> Remember that the top of a tire is moving forward >> at *twice* the speed of the car >I was discussing this a short while back with a friend. If the top of >the tire is moving at 2x, the axle is moving at 1x, then the bottom >of the tire would have to be standing still. But

Re: [EVDL] [External] Re: George's farm truck/van EV project

2020-06-18 Thread Lee Hart via EV
Gary Krysztopik via EV wrote: One of the problems is that people expect one vehicle to be able to do everything (except be fuel efficient). That's why we have so many huge SUV's - 4x4 in case it's needed, tow capacity just in case, 7 passengers just in case, and we've created monsters that have

Re: [EVDL] George's farm truck/van EV project

2020-06-18 Thread Lee Hart via EV
Willie via EV wrote: BINGO! Vehicle buyers are generally VERY poorly served by the dealer sales model. A couple of decades ago, I thought I wanted a short cab long bed Dodge/Cummins 3/4T pickup. Dealers referred to such as "work trucks". Dealers had a lot of big cabs but no "work trucks" with

Re: [EVDL] George's farm truck/van EV project

2020-06-18 Thread Lee Hart via EV
Peri Hartman via EV wrote: Rather than have movable panels, wouldn't it be easier to just have a deeper center channel. Or, for crying out loud, a real 4'x8' bed? We've had small pickups and minivans that can do this for 50+ years! Plywood can be inserted vertically. Yes; but drywall

Re: [EVDL] LRR Tires: Research tips?

2020-06-18 Thread Lee Hart via EV
EVDL Administrator via EV wrote: Oversize wheels are a styling gimmick. Once the wheels are big enough to clear the brakes, making them larger has no practical value that I can see. They only add unsprung mass and inertia. They decrease the vehicle's efficiency, and possibly its handling and

Re: [EVDL] George's farm truck/van EV project

2020-06-16 Thread Lee Hart via EV
Peri Hartman via EV wrote: my odyssey 2000 minivan... holds 4 of 4x8 sheets flat on the floor with the tail gate shut... I can even get a limited number of 12' boards inside with the gate shut. Right on point. I had an '87 and '92 Dodge minivans, and they could do it. I had a 2002 VW Eurovan

Re: [EVDL] George's farm truck/van EV project

2020-06-16 Thread Lee Hart via EV
Willie via EV wrote: On 6/16/20 3:12 PM, Peri Hartman via EV wrote: Is it too late to change your design a bit ? If you can get one of the dimensions 48" or more, then it is more useful in construction, for hauling plywood, drywall, and other sheet items. Perhaps they've made provision for

Re: [EVDL] George's farm truck/van EV project

2020-06-16 Thread Lee Hart via EV
Gary Krysztopik via EV wrote: I am working on a small van with a few other guys. We were talking about kits but not sure yet, maybe only turn-key. It is made in the USA, high-power NEV/LSEV with 60 cu ft/1500 lb capacity. Multiple battery and drive options. Attempting under $20K before

Re: [EVDL] [External] Re: [External] Re: Million Mile Battery

2020-06-15 Thread Lee Hart via EV
George Mullineaux via EV wrote: My wife hauls farm supplies with her vehicle and will many times coordinate a trip to the grocery store at the same time. With the rear seats folded away, I have seen her completely fill her Silhouette van from front to rear. I have the same problem, George. The

Re: [EVDL] Million Mile Battery

2020-06-09 Thread Lee Hart via EV
moskowitz via EV wrote: From Bloomberg.com --- Hyperdrive A Million-Mile Battery From China Could Power Your Electric Car Right... I'll wait and see. I wish there was some way to compare all the miracle battery claims over the last century to what actually happened. But my subjective

Re: [EVDL] Variac and diode bridge to charge LiFEPO4

2020-06-08 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: I have 20s by 2p in mind for this pack. What would be the pack charging voltage? I think for safety 71.4 but the BMS seller says 73vdc. Lawrence Rhodes Hi Lawrence, There really is no "precise" fully-charged voltage. It varies with the type of battery, its

Re: [EVDL] Variac and diode bridge to charge LiFEPO4

2020-06-08 Thread Lee Hart via EV
Bill Dube via EV wrote: We have a huge variac with a bridge diode we call "Mongo charge" that we use if we let the magic smoke out of all our on-track chargers. We _never_ leave it unattended. Ever. If you (or we) decided to leave such a primitive charger unattended, we would probably use

Re: [EVDL] Variac and diode bridge to charge LiFEPO4

2020-06-07 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: I think I found an inexpensive 20s 60amp BMS. I am still not sure what charger to use. Is it possible to experiment with different voltages starting with 71.4 and going to 73vdc using my old standby variac with a diode bridge. Could this be dangerous if set and

Re: [EVDL] Question about charging small LiIon batteries

2020-06-03 Thread Lee Hart via EV
Justin Kenny via EV wrote: Not sure if you understood the previous 2 messages, the Zener diode will drain your battery, and a diode will not stop it from overcharging. I really suggest to use the right tool for the job, $3.25 for a constant-current constant-voltage converter isn't much cost to

Re: [EVDL] Question about charging small LiIon batteries

2020-06-02 Thread Lee Hart via EV
jkenny23 via EV wrote: Another very important note; diodes don't drop voltage the same at all current levels. Meaning; they will NOT stop your 4.5V panel from overcharging your battery to 4.5V if you don't have a dedicated charging IC. If you want to charge your battery to an unusual voltage, I

Re: [EVDL] Question about charging small LiIon batteries

2020-06-02 Thread Lee Hart via EV
Peter VanDerWal via EV wrote: Wouldn't it be better to have a 3.9V zener across the battery? Unless thay have leakage current when off? If I'm going to put it across the panel then I'd probably want a 4.3V zener, and then drop ~0.4V between the panel and the battery? The result doesn't have to

Re: [EVDL] Question about charging small LiIon batteries

2020-06-02 Thread Lee Hart via EV
Peter VanDerWal via EV wrote: Correction, My panels have 2x12 cells. ~5.5V at VMP, ~7V VOC Now that I think about it, I don't think just using diodes will work. The VMP and VOC are two far about to make it practical. How about a zener diode across the panel to limit its peak voltage? Then

Re: [EVDL] Clean Motion and Mahindra introduce/register TukTuk mopeds to California

2020-05-28 Thread Lee Hart via EV
Lawrence Rhodes via EV wrote: A Mahindra Treo and a Clean Motion Zbee were registered as moped or off highway vehicles in California with the help of the Golden Gate Electric Vehicle Association and Lawrence Rhodes. These classifications are the most inexpensive ownership registration

Re: [EVDL] : V2g for DIY EV's (economics)

2020-05-28 Thread Lee Hart via EV
Mark Abramowitz via EV wrote: Without energy storage, you actually need *more* energy infrastructure. Yes... But they already *have* the infrastructure. The utilities want to keep getting money for it. Never mind that it was paid off decades ago. Sort of like wanting to keep driving your old

Re: [EVDL] : V2g for DIY EV's (economics)

2020-05-27 Thread Lee Hart via EV
Robert Bruninga via EV wrote: I disagree. When you make a $10,000 investment in a solar array, any sun that falls on it and does not give you retail value in return for the electricity is truly a wasted economic value. I guess it's wasted if you consider money as "waste". And, if your

Re: [EVDL] : V2g for DIY EV's

2020-05-27 Thread Lee Hart via EV
Willie via EV wrote: BTW, I believe someone mentioned that the not produced power when an inverter "cuts back" must be dissipated somewhere as heat. I don't believe that is the case; I believe the inverter can just not produce the available power with no heat generation. I agree. It would be

Re: [EVDL] : V2g for DIY EV's

2020-05-27 Thread Lee Hart via EV
Jay Summet via EV wrote: It is technically possible, all you would need is a current sensor on the main house feed. If the current is going in, your inverter would start adding current to the house wiring until the current flow reached zero. With modern electronics you could react very quickly

Re: [EVDL] V2g for DIY EV's

2020-05-26 Thread Lee Hart via EV
Willie via EV wrote: On 5/25/20 10:25 PM, Robert Bruninga via EV wrote: Even mechanical meters now have a ratchet that wont let the kWh go backwards even if the wheel goes backwards. Which means you get no credit for anything you backfeed. I dont konw when those models came out, but at

Re: [EVDL] V2g for DIY EV's

2020-05-25 Thread Lee Hart via EV
Robert Bruninga via EV wrote: all meters except NET meters will charge you kWh no matter which way the disk goes. ...except for the old mechanical meters, which ran backwards when you generated power. The utilities have "fixed" that little problem with their smart-aleck meters. They

Re: [EVDL] 3people rescued from inside after EV power failure

2020-05-13 Thread Lee Hart via EV
From: paul dove >I remember when I went to test drive a Prius. The salesman couldn’t get the >door open because the 12v battery was dead and the battery was under the back >seat. They had to get the mechanics to break in to the vehicle. That's funny! The salesman didn't know that there's a

Re: [EVDL] Battery pack sizing.

2020-05-12 Thread Lee Hart via EV
paul dove via EV wrote: For range... take the weight of the vehicle and divide by 10. 3200lb car 320 watt hours per mile. That's a good rule of thumb for typical cars. It will be different for much smaller or much bigger vehicles, or vehicles that have efficiency enhancements, or power

Re: [EVDL] Musk throws another tantrum

2020-05-11 Thread Lee Hart via EV
Willie via EV wrote: Yes, surprising. I know the people on this list have worked diligently for decades to hasten the adoption of EVs. Through both personal example and public advocacy. Yet, we have not had the success that we desired. Then, Tesla came along and did the deed. Tesla has been

Re: [EVDL] POTH, Renewables and Nuclear

2020-05-11 Thread Lee Hart via EV
Peter Eckhoff via EV wrote: It maybe that we have 512 "captains" and a Commander McBragg. All thinking they are right and everybody else is wrong. https://en.wikipedia.org/wiki/Commander_McBragg Certainly, we have an excess of Commander McBraggs running many of the "ships of state" around

Re: [EVDL] Musk throws another tantrum

2020-05-11 Thread Lee Hart via EV
paul dove via EV wrote: 54 violations in 5 years does not constitute not caring about employees. No; by itself, that may or may not be unusual. But David Roden said Tesla had 3 times as many OSHA violations as Nissan, Toyota, Ford, Kia, and Mercedes all put together. *That* is worrisome. When

Re: [EVDL] OT: motor/generator

2020-05-10 Thread Lee Hart via EV
steve sawtelle via EV wrote: So, as a thought exercise, do you think a motor-generator could be designed to start these engines yet fit within the physical constraints? Hi Steve, It's possible; the question is whether it would be practical (buildable; affordable). It would take a pretty

Re: [EVDL] POTH, Renewables and Nuclear

2020-05-09 Thread Lee Hart via EV
EVDL Administrator via EV wrote: I suppose I should read or see the source, but it's a very old game. Essentially all of these are 100% propaganda. Trying to calculate where we'll be 100 years from now or even 50 years fro now involves a huge number of variables, and few of them have much

Re: [EVDL] POTH, Renewables and Nuclear

2020-05-06 Thread Lee Hart via EV
Paul Dove wrote: The reason I don’t like Moore is because of an interview I saw where he said his movies weren’t meant to give the other sides message they only show the facts that support his opinion. He said I don’t lie but I don’t presents facts that contradict my point. I don't know if he

Re: [EVDL] Small EV Truck Availability

2020-05-04 Thread Lee Hart via EV
mark hanson via EV wrote: I’ve heard of the bloated/pricy Cyber Truck and Rivian but does *anyone* plan to make a small EV truck, like a old 4-cyl size Ford Ranger, Chevy S10 or Toyota? My 99’ Ford Ranger (4-cyl 5-spd) is probably not going to last much longer & need a ½ tom payload, about 2K

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