That is normal in china.As a chinese,I want to tell you It's not easy for a foreigner,even a native chinese to buy something with really good quality and low prize online.But we still like shopping online.Because the price is really really cheap!Such as this 18650 cells.You can get a real one less than 2€（include shipping fee）in taobao/tmall/pdd/jd（online shopping app for everyone,The express was really fast,If you are fortunate enough,You can get the product less than 6 hours.And the price was cheaper than local shop）.You can also buy a fake one less than 0.8€ in Ailbaba（a app for trader to wholesale,All the products are at wholesale price.They also sell the real product.You have to pay extra fee for shipping,between 1€ and 2€,They will send to you your home in a week） Whats more,ail will never rig the system,but the seller will.However if a shop have fake feedback,they will be banned by ail.But as for fake products,it seems that ail hardly ever care about selling fake products Because every buyer have ability to recognize what is real and what is fake.

That is normal in china.As a chinese,I want to tell you It's not easy for a foreigner,even a native chinese to buy something with really good quality and low prize online.But we still like shopping online.Because the price is really really cheap!Such as this 18650 cells.You can get a real one less than 2€（include shipping fee）in taobao/tmall/pdd/jd（online shopping app for everyone,The express was really fast,If you are fortunate enough,You can get the product less than 6 hours.And the price was cheaper than local shop）.You can also buy a fake one less than 0.8€ in Ailbaba（a app for trader to wholesale,All the products are at wholesale price.They also sell the real product.You have to pay extra fee for shipping,between 1€ and 2€,They will send to you your home in a week） Whats more,ail will never rig the system,but the seller will.However if a shop have fake feedback,they will be banned by ail.But as for fake products,it seems that ail hardly ever care about selling fake products Because every buyer have ability to recognize what is real and what is fake.

What I said "feedback" means Sales and Remark.Some shop will hire many people to buy their products,and give five star remark.The seller will Pay the money back In another way.And send them an empty mail to cheat ali.

Sometimes 18650 button tops have a BMS protection PCB under the covers. If not then you're fine.

eu.nkon.nl/

what happened?

Where they real or fake ?

I just bought exactly the same model from eBay.. what were your results?

No. They rejected the dispute and paid the seller despite video evidence and "Platinum" buyer status.

@@crazytom Thanks, that's something that is good to keep in mind. Over all the years I've been dealing with them, I've had to submit a number of disputes. In fact I just had one resolved yesterday over one of those common battery holders that you use for testing cells. Most of the listings say '21700' as one of the cell types, but you cannot fit a 21700 cell into them unless you take it apart and modify it. So, although it was only $9.75 with the additional shipping, I decided to just submit a picture with the dispute. They accepted it with no further questions. I seem to recall having one or two disputes that they did not accept, and I get the impression it sometimes depends on how well the person viewing it can actually understand the problem. I'm also guessing they look at our purchase history and see if it indicates the account seems to launch disputes that exceed some metric or mean that they have established (I'm guessing that over the last 5-7 years I have spent between 10-15K spread over hundreds of orders, most of which have been fine). It could be as simple as if you account history shows you are below their established mean, they are more likely to allow your dispute?

@@MountainParameters yes I'm sure they have a complaints "dashboard" that helps them decide if you're vexatious and I agree that it depends on who adjudicates... sometimes a refund with little fuss and sometimes rejected despite overwhelming evidence. I really cannot trust this process as I'm pretty confident I'm not the only one complaining about a product fault. Ali knows this and only they know this data. I spend ~$4K each month with them.

@@crazytom Sounds like we have a similar outlook on things, thanks for the comments. Over the years you tend to find some trusted sellers that you patronize. In the meantime you're trying to minimize potential losses by not ordering anything too expensive. And actually, as an update to the previous post where I though I had received a bad batch of NCR18650B cells, I noticed the load tester was not reading voltage properly. I checked the leads and it was not due to them. Once I corrected for the voltage problem, the cells appeared to have 3100 MAh at a 3V cutoff. So in this case the problem appears to be the load tester (from Ali of course), and not the cells after all. Right now it appears as though the only legit way to get cells shipped to North America is via UPS and perhaps DHL, and my supplier has indicated you should aim to ship at least 10kg to make the resultant shipping costs per cell worth it.

@@MountainParameters Yes.. I always check across multiple electronic loads if there is an anomaly. I ask all suppliers to ship DDP (Delivery Duty Paid). About $65 for the first Kilo and around $25 per extra 0.5kg IIRC. That way they sail through customs and import checks.

I dont think there is any

SkyRC MC3000. It's the king of cylindrical testers but it is $100

Yes.

@@crazytom thanks dude, continues charge affect this battery?

Correct. I should have mentioned what the format was.

Yes terrific .. isn't it. Link is in the description.

@@crazytom Thank you very much Tom 🙏

@@crazytom Test this Persian POP music if you wish ...

@@crazytom kzfaq.info/get/bejne/map-d7ml1LDMmZ8.html

Decode 18650

Shocking.

Robert, I have done the same, but got lucky. The one thing I did do was go through the forums such as Budget Light Forum, and there was an Ali Seller on there that many had tried and tested. I've used that seller twice for large orders: one for 21700 cells and one for 1865 cells, and they have tested to spec. Now I am going to go off and test a bunch of the cells that I still have have previous Ali Express purchases based on Tom's information here, and keep my fingers crossed.

@@MountainParameters Well hopefully you gonna be lucky.

@@robertzeman4301 Thanks, I tried an NCR18650B last night before bed. I think it reported something like 2400MAh. It may be about a year old, and has always been charged to 4.2v. I think I need to find a charger that I can set to charge my cells to 4.1V. If anyone can recommend a charger that can do this, that would be great.

@@MountainParameters Well Im using Liitokala Lii 500 and Im pretty sure its the best one. You can see rough inner resistance and do Nor test which is charge, discharge, it never failed and I have bunch of them second year. Btw there is also new clone Fikida F4 dont use it ever! I have 4 of them and 2 burned instantly and last 2 are not working properly at all, only at 300ma loud and even that is very wrong. But if you want specific voltage you can use battery capacity tester ZB2L3 (HW-586) Aliexpress its like 3$ from China (2-3 months if you even get it) or look locally. If is not enough for you look for battery capacity tester 150W or 180W or 200W etc its about 20-40$ from China but the basic version 150W is good.

Less than 6 bucks

lol !

Get ready to get fakes

They're used in Tesla model S (with a modified vent).

They’re used in select Panasonic Toughbooks as well. Lithium ion batteries don’t do well above 45C (despite what Panasonic tells you) so the issue won’t be specific to the NCR.