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Docan 280 EVE cells - 2023 Quality check (update: Bad experience - scam beware)

houseofancients said:
18650batterystore is us only, this forum is not
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Yup I am from the EU, I could use NKON and buy 100% Grade A cells while getting VAT invoice and be 100% safe, unfortunately I saw that they sell EVE cells after I bought them from Docan. NKON is not perfect but for sure they are not scammers, they sell grade B cells cheaper than Docan when you deduct VAT. Docan not only lies, but you pay a premium for something that others sell cheaper

There should be a sticky post on this subforum for reputable sellers around the world and keep it updated when lots of people report problems with a seller, just a thought to help others.
 
xristostsilis said:
Yup I am from the EU, I could use NKON and buy 100% Grade A cells while getting VAT invoice and be 100% safe, unfortunately I saw that they sell EVE cells after I bought them from Docan. NKON is not perfect but for sure they are not scammers, they sell grade B cells cheaper than Docan when you deduct VAT. Docan not only lies, but you pay a premium for something that others sell cheaper

There should be a sticky post on this subforum for reputable sellers around the world and keep it updated when lots of people report problems with a seller, just a thought to help others.
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I think it's too hard to keep up with who is reputable. Many times a seller will start off reputable and sell a bunch of really good cells and then later on start dumping a bunch of bad cells
 
MrM1 said:
Many times a seller will start off reputable and sell a bunch of really good cells and then later on start dumping a bunch of bad cells
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Thats not a coincidence, that is the plan all along! Get people to start chattering and ranting and raving and then flood the remaining orders with the BS stock. If it gets too bad then start up another company.

As long as people think they are getting a deal this will continue, this is what happens when you live in a High Trust Society like the West and engage with a Low Trust Society like the East.

Sorry but I called this one: First it was Xuba, then it was Basen, and now we have Docan. I'm sure there will be another one to take there place soon.
 
Alkaline said:
Thats not a coincidence, that is the plan all along! Get people to start chattering and ranting and raving and then flood the remaining orders with the BS stock. If it gets too bad then start up another company.

As long as people think they are getting a deal this will continue, this is what happens when you live in a High Trust Society like the West and engage with a Low Trust Society like the East.

Sorry but I called this one: First it was Xuba, then it was Basen, and now we have Docan. I'm sure there will be another one to take there place soon.
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“As long as people think they are getting a deal this will continue, this is what happens when you live in a High Trust Society like the West and engage with a Low Trust Society like the East.”

No it’s the opposite we in the west do not trust so we question everything, the Chinese trust each other and there are unscrupulous types in every society and that’s why their quality control is so shitty
 
So it seems that I waited 3 days for nothing. They finally replied with some videos showing perfectly fine batteries while we all know they ship scratched barcodes on top of grade B batteries. They told me I can return them for a refund only if the batteries are in the state they shipped it.

These guys might try to not even refund me and claim that I damaged them or something.

I asked them to ship real Grade A cells, and then I will return them but they denied.

Unfortunately I can’t upload videos here to show you guys what they sent me.

What would you do in my case? I haven’t test them yet I don’t know if they pull capacity either
 
xristostsilis said:
So it seems that I waited 3 days for nothing. They finally replied with some videos showing perfectly fine batteries while we all know they ship scratched barcodes on top of grade B batteries. They told me I can return them for a refund only if the batteries are in the state they shipped it.

These guys might try to not even refund me and claim that I damaged them or something.

I asked them to ship real Grade A cells, and then I will return them but they denied.

Unfortunately I can’t upload videos here to show you guys what they sent me.

What would you do in my case? I haven’t test them yet I don’t know if they pull capacity either
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use them...
simple as that
 
xristostsilis said:
So it seems that I waited 3 days for nothing. They finally replied with some videos showing perfectly fine batteries while we all know they ship scratched barcodes on top of grade B batteries. They told me I can return them for a refund only if the batteries are in the state they shipped it.

These guys might try to not even refund me and claim that I damaged them or something.

I asked them to ship real Grade A cells, and then I will return them but they denied.

Unfortunately I can’t upload videos here to show you guys what they sent me.

What would you do in my case? I haven’t test them yet I don’t know if they pull capacity either
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Most people here will say, well its the Chinese... Its ok for them to commit fraud.

If I were you, and you paid with paypal or cc, I would take photos of the scam qr code, demand a full refund and keep the cells as well. No payment company is going to force you to return counterfeit items, you can tell them you do not want to get into legal trouble shipping counterfeit merchandise.

Seems harsh, but unless you hit these companies in the wallet they will keep doing this, I go back to my very first experience with Alibaba and a counterfeit IWATA spray gun, long story short I submitted photos of a real gun and a fake gun and I ended up getting to keep both as well as my get my money back. The counterfeit gun worked fine btw, but, the fact that the seller stated it was genuine when it wasn't basically entitled me to force the seller to forfeit the sale and issue a refund.

Not sure what the law is in the EU, but I don't think you are under any obligation to return counterfeit (and yes fake qr code on grade B usually will classify as counterfeit) items. You can check.


Now if you paid with bank transfer, then yes you are stuck with them, use them no other choice, you can vent your frustration but it will achieve nothing.
 
xristostsilis said:
So it seems that I waited 3 days for nothing. They finally replied with some videos showing perfectly fine batteries while we all know they ship scratched barcodes on top of grade B batteries. They told me I can return them for a refund only if the batteries are in the state they shipped it.

These guys might try to not even refund me and claim that I damaged them or something.

I asked them to ship real Grade A cells, and then I will return them but they denied.

Unfortunately I can’t upload videos here to show you guys what they sent me.

What would you do in my case? I haven’t test them yet I don’t know if they pull capacity either
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i have been beating this drum for about 6 months now... nobody get new cells. you have received cells that came out of a public bus or a forklift or whatever the CCP government prescribed as a vehicle that needed its batteries changed. the used batteries were sold to a second hand dealer who then claims they are new.

Why? because you cannot sell or ship hazmat between developing nations and other nations. this is to prevent the shipping of hazmat (hazardous materials between rich and poor countries for disposal purposes). The CCP has decided to allow them to sell to other countries used batteries.. claiming they are new and screw the end user. nothing more nor less.

the minute you think the CCP cares about you is the minute you made your mistake.

Asians in general do not care about other countries laws. they flaunt it daily. i live in japan, one of the better countries over here and I can tell you their only purpose is to circumnavigate the rules... any else is a side line issue.

so you have a set of used cells, from a bus, or other prime mover... you are not drawing at 1C or 2C, you are drawing at .2C or in that area.... they will last as long as you want

so just give it up, you do not have new cells, you do not have automotive grade. you have cells coming out of a E Bus or E Forklift or something of the same ilk...

CCP= Communist Controlled Party IE what the US is becoming....

They control production, sales any metric you care to map out... and they control exports as well... Think about it.
 
Daddy Tanuki said:
nobody get new cells
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Sure you do. They just failed some part of the QA process that made them not be a good match for EV use. Cells manufactured in late 2022 or early 2023 definitely did not come out of a vehicle. Would I use these in an EV? No. Would I use these in a solar power system powering my house? Absolutely, and have done so for the past three years with these kinds of cells.
 
If they are reprinting QR codes, they could make any code up!!!

That’s why I also question people who wave a “test report” as being “EV grade A”, I can make test reports all day long with what ever numbers I want on it, slap an “Eve Offical test lab” stamp on it and rake in the cash.

But any cell that was assembled into battery bank that was then placed in use in a harsh environment of EV use will take some effort to break the bank up, you’d see west and tear on the cells.

I agree these didn’t meet specs to end up in an EV and then reterminaled to be sold on the 3rd party market.

IMO No EV will use threaded terminals, welded all day long.
 
I've read through this thread and not sure what the issue is?? Unless you've done a capacity test and it turns out it has way below normal range capacity then I don't see what the issue is.
 
rhino said:
I've read through this thread and not sure what the issue is?? Unless you've done a capacity test and it turns out it has way below normal range capacity then I don't see what the issue is.
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The thing is, even if they pull full capacity at first they might not last in the long run or they may be a hazard as they don’t come up to the manufacturer standards. As I said I will do a capacity test very soon and I will keep you guys updated. However it is a big concern that they scratch the real barcodes and laser fake ones.

What if a sold you a meatless/impossible burger and told you it has meat in it?

Most people will test these cells on day one or not even test them at all, however these should last 20-25 years or 6.000 cycles at max but when they are grade B I doubt that.
 
Think of it like an iPhone battery health, some phones drop their health really fast and other keep up more. Some batteries are better than others.

These Grade B batteries haven’t been tested for 10-20 years so as a buyer I deny to pay Grade A and receive B while gambling quality in the long run.

I guess some of you are ok if they pull capacity but I can assure you that this might not be the case in 5 years. Don’t forget the manufacturer says 6.000 cycles for 80%
 
As others have explained the "grade" is a made up marketing term. There is no standardization into what exactly that means because it is made up. How long do you think it would take you to go through even 1000 cycles?
 
rhino said:
As others have explained the "grade" is a made up marketing term. There is no standardization into what exactly that means because it is made up. How long do you think it would take you to go through even 1000 cycles?
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You know what? I don’t know how long these batteries will last, all I know is that manufacturers like Victron use these type of cells and claim 10 year warranty plus they claim 6.000 cycles out of them. Many other brands also expect at least 10 years of good working batteries.

These Chinese guys claim 5 year warranty but we all know that they might not even exist in 5 years.

I have nothing to do with Docan nor I am associated in any way with them, this is my pure experience. If anything changes I will keep everything updated here.

I am not saying that these cells should last 25 years but if they were really up to the manufacturers standards therefore “Grade A” these might have the chance to last that long. My cells don’t meet EVE’s standards so I might not be able to make the most out of them.

To answer your question 1000 cycles would be 3-4 years for my use case. However if these batteries don’t hold a charge after 1000 cycles I would be better off buying AGM ones
 
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rhino said:
I've read through this thread and not sure what the issue is?? Unless you've done a capacity test and it turns out it has way below normal range capacity then I don't see what the issue is.
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How do you know they are even 280K cells? What if they are poorly performing 304 cells re-lasered to appear as 280K. They did this with the CATL 302 cells selling them as CATL 280 and people were pulling 294AH from them thinking they hit the jackpot, hell I almost bought some.

Once you start putting fake QR codes on a cell, you are done as far as I'm concerned, enough is enough.

Fogstar in UK
NKON in EU
18650batterystore in us
currentconnected in us
Luyuan for most of the rest of the world

Sell grade B, state its grade B, everyone is cool with it they know what they are getting.

No excuse for this and if you don't see what the problem with putting a fake qr code on a cell is, then you are part of the problem.
 
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xristostsilis said:
all I know is that manufacturers like Victron use these type of cells and claim 10 year warranty plus they claim 6.000 cycles out of them.
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While I do like my Victron gear, I didn't go with the Victron batteries. I'll also point out that Victron does not provide a 10 year warranty on the LiFePO4 batteries.

6.3. Warranty
This product has a 3-year limited warranty. This limited warranty covers defects in materials and workmanship in this product and lasts for three years from the date of original purchase of this product. To claim warranty the customer must return the product together with the receipt of purchase to the point of purchase.
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They also spec out to only 5,000 cycles.

 
I don't want you to get me wrong.. I agree with the basics of what you are saying but purchasing LiFePO4 is like navigating through the fog of war. You need to go with sellers who have a history of providing quality cells like @Alkaline provided.
 
HRTKD said:
While I do like my Victron gear, I didn't go with the Victron batteries. I'll also point out that Victron does not provide a 10 year warranty on the LiFePO4 batteries.




They also spec out to only 5,000 cycles.

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My bad, I have seen many manufacturers give 10 year warranty on their batteries like these guys here: https://www.phocos.com/product/ess-l-lfp-energy-storage-system/

That also say 6.000 for 90%

So I guessed Victron did the same on their batteries
 
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