EVE vs. Winston? 60% price difference

[goboatingnow]

Originally Posted by CaptainRivet

No 99999 on that list….just finished repairing my FP Lavezzi over 7 month with one of the best fiberglass specialist available…additionally fixed a long list of construction, production and fabrication defects along the way of these French „geniuses“

I think you are mixing up markets Amel , Ovni , CNB , Alubat , Archambault , etc etc and many other French builders yards ( inc the One that built QM2) produce high quality excellent work

France builds the vast majority of leisure boats in the world today with 43 brands built all over France ranging from highly specialised one -offs to mass production

Cats shouldn’t be built well anyway , nasty things , like lawyers, they are built to a price for the med charter market and that’s where they should stay ( or not actually ) there all “ gin palaces “ at best or floating condos , would you take your apartment across an ocean ??

[Simi 60]

Originally Posted by s/v Jedi

Ah not believe it… yours are brand new?

Yes, mine were brand new
Do your research
Don't buy the cheapest expecting A grade cells
and use a reputable reseller

Heres a QR code scan, one of several taken right now using the same app as used in the video you linked to.

What's that I see?
July 2021?
Just as the documentation said.

Order date of batts from my end was 25/07/21
Dispatched 12/08/21
24 X 3.2v cells, 3 X JBD BMS + freight for $3670.00 usd total delivered.
All 280ah cells cells tested at 290+ - hours

[captianjuan]

So you bought the Eve cells and found them to be grade A? can you recommend a seller?

[Simi 60]

Originally Posted by captianjuan

So you bought the Eve cells and found them to be grade A?

If you are talking to me then no, I didn't buy EVE cells and find them to be A grade
I ordered A grade, matched and batched and got what ordered

can you recommend a seller?

Look up

[bhobbs]

Originally Posted by Simi 60

If you are talking to me then no, I didn't buy EVE cells and find them to be A grade
I ordered A grade, matched and batched and got what ordered



Look up

I purchased from the same dealer as Simi, and had the same positive result. My order is about the same age, but has only occasional cruising use.

[PaulCrawhorn]

Language difficulties aside, over generalisation is misinformation.

The country of origin may as well be irrelevant, top notch QA can be implemented anywhere.

As stated many many times, the quality of the vendor is just as essential as the brand.

The maker may have such fantastic QA that only 15% of each production run is true Grade A.

Yes the Chinese military and huge EV makers get first dibs.

The remaining 85% is still getting sold perhaps through completely different channels.

Being able to test yourself on arrival is best.

Combined with a vendor local to you - same continent anyway - willing to honor a warranty.

Filing that, then follow reco's from trusted members and roll the dice.

[wholybee]

Originally Posted by PaulCrawhorn

<snip>
Being able to test yourself on arrival is best.
<snip>

I have doubts that anyone on this forum has the knowledge, equipment, or experience to test a cell to confirm it is Grade A. I also doubt anyone here is capable of matching cells. Few probably even understand what matching is.

At best, we get information on the manufacturing date. Maybe a sheet from a distributor showing "matched" capacity. Most here can do a rudimentary capacity test. Maybe a very few can do an IR measurement. I doubt anyone here can plot IR over a range of voltages. I doubt anyone here is willing to do a multiple month long test for self discharge. Grading a cell involves even more test than those.

Most people seem to think "matched" means cells have the same capacity. That isn't it. More important is that they have the same IR and self discharge rate.

Those other tests, the tests beyond capacity, determine how well a set of cells will age, and how well they will stay in balance. Sure, you might have a new cell. It might exceed rated capacity. But will it in 3-5 years still perform as it does today? Will one cell "run up" when charging? Will they still meet capacity or will it have declined?

I don't know, and no one buying EVE cells really does either.

[Simi 60]

Originally Posted by wholybee

I don't know, and no one buying EVE cells really does either.

Nor does anyone buying Winston, Calb, GBS, Carl, Lishen etc etc

[fxykty]

Originally Posted by Simi 60

Nor does anyone buying Winston, Calb, GBS, Carl, Lishen etc etc

True, it’s the vendor that can provide that trust.

Do sequential serial numbers help to assure that the cells are closely matched?

[Simi 60]

Originally Posted by fxykty

True, it’s the vendor that can provide that trust.

Do sequential serial numbers help to assure that the cells are closely matched?

Ours weren't exactly sequential, but close
Plus this data provided as well

[bhobbs]

Originally Posted by PaulCrawhorn

Language difficulties aside, over generalisation is misinformation.

100%

Originally Posted by PaulCrawhorn

Yes the Chinese military and huge EV makers get first dibs.

The remaining 85% is still getting sold perhaps through completely different channels.

I thought you didn't want to over generalise?

[LeighC]

Originally Posted by Simi 60

Ours weren't exactly sequential, but close
Plus this data provided as well

Hi Simi,

What charge & discharge regime did you use to get those A/H figures please?

How did you measure them so accurately?

Leigh

[Simi 60]

Originally Posted by LeighC

Hi Simi,

What charge & discharge regime did you use to get those A/H figures please?

How did you measure them so accurately?

Leigh

Provided by supplier

[captianjuan]

I would have to disagree about generalization being misinformation. by definition generalization is a broad sweeping statement intended to give a foundation to navigate the waters. Having lived in china I cant tell you something I learned when buying regular AA batteries and this would explain my attempt here (so far without many results) to acquire some good recommendations for quality sellers. So when in China I would often buy batteries for my camera. If I bought them at the local shop, duracell batteries would give me about 3-5 photos. if I went to a high end shop I would get about 15 photos from the apparent same batteries, and if I went to the fancy mall for westerners and rich Chinese then I would aquire standard quality duracell batteries. That's a true story. not misinformation.
Anyway. I would love to hear positive or negative feedback from Lithium venders in china. thanks again all.

[CaptainRivet]

Originally Posted by goboatingnow

I think you are mixing up markets Amel , Ovni , CNB , Alubat , Archambault , etc etc and many other French builders yards ( inc the One that built QM2) produce high quality excellent work

France builds the vast majority of leisure boats in the world today with 43 brands built all over France ranging from highly specialised one -offs to mass production

Cats shouldn’t be built well anyway , nasty things , like lawyers, they are built to a price for the med charter market and that’s where they should stay ( or not actually ) there all “ gin palaces “ at best or floating condos , would you take your apartment across an ocean ??

They just screw up one quality brand after another... Amel Super/Maramus are perfect, the new run

My floating home now without any doubts...
Liveaboard over a year full time, then you want a cat too.
Had before the classic 40ft ketch longkeel pilot house around the world tank and happily switched to a well sailing cat and won't go back for my trip around the world....