Massive fraud on 18650s in the Littokala Aliexpress stores!

Sounds like the shipper they used will no longer accept lithium-ion cells. Does your new tracking number indicate a different shipper this time?

What’s the max possible capacity for an 18650, 21700 and 26650.

Click here

The 9900 mAh 18650’s at $1/piece, are obviously a hoax.
But what about 4000 mAh 18650? Is that possible?
I’m looking for a few extra 18650’s, I currently use the black 3500 mAh Liikota cells, which were tested as very good by HJK on this forum. And yes I like them, but I’m always on the look for something better.

Approximately:

3500 mAh for 18650

5500 mAh for 26650

21700... (?) mAh somewhere in between above capacities.

As of June 2018, the highest capacity 18650 is 3600mAh.

LG 18650 M36 3600mAh (Cyan) @ lygte-info.dk Not even 3200mAh minimum down to 2.8V between 0.5A and 1A.

By carefully following the discharge graph lines down to 2.5V, this cell meets 3200mAh minimum down to 2.5V.

No.

Best high capacity cell (I believe and not by a lot) is Samsung INR18650-35E:

Quite well matched cells delivering above 3350mAh minimum down to 2.8V at 0.5A - 1A, and surely 3400mAh minimum if down to 2.5V.

Still no 3500.

Cheers ^:)

There is the Panasonic NCR18650G though:
https://lygte-info.dk/review/batteries2012/Keeppower%2018650%203600mAh%20(Black)%202014%20UK.html

Down to 2.5V, it could do 3500-3600mAh without a protection circuit.

If I had one, I could test it myself, but it does cost a LOT of money for a single 18650 cell.

The problem with the NCR18650G and all others 3600mAh legit cells is that they tend to have more internal resistance than their 3500mAh counterparts.

Looks like I’m not the only one.

“Hello, because your package was returned as undeliverable, give you change the other logistics today sent to you, in the 17th website can query. This is the new tracking number:”

So I guess another 3 weeks minimum. :frowning:

Damn it. They changed lithium ion shippers.

This cell would hit 3.4+Ah minimum down to 2.5V at 0.5A - 1A, even without the protection circuit burden (≈40mV at 1A), maybe 3.5Ah at 0.5A, but 0.5A is below the 0.2C official discharge current rating. Totally l00ks like a rewrapped Sanyo NCR18650GA (go check it out with the battery comparator).

Cheers ^:)

Got the same returned and new tracking number message. The new one seems usps traceable

Finally! I had to look at a useless EKC (South Korea) website until now.

Try tracking here: https://track24.net

Hope it is of any help. In eBay fake tracking numbers are usual.

Cheers :-)

In Track24 it tells me the estimated delivery dates are between July 6 and July 26. Hopefully it won’t be that long.

I bought 26650 battery from aliexpress before, normally take 15 days…

I think mine from Ali took about 2.5 months. Very slow shipping, but at least it was free.

Just got my six 30Q delivery. Ordered through the link in the OP. The batteries have the 4 legs to the positive post, not 3 as my other 30Q cells.

Going to test voltage, then drain and then charge in a VC4 to see about capacity. Will report back with more info.

Update: All six were at 3.62V

I would no doubt open a dispute. I'd recommend choosing “product is not as described” or “counterfeit goods”. If you choose counterfeit goods and the seller doesn't cooperate you'll have to convince the AliExpress Case Management Team with proper evidence, at least like photo-comparing the cells with known good 30Q samples.

YMMV, though.

Cheers :-)

If only I coule order one without paying huge shipping costs.

Using my 20A constant current tester, it would have been easy to see if these were real Samsung 30Qs, by capacity and internal resistance.

It’s interesting that the original link now shows the 30Q cells with 3 legs, not 4 like they used to show and the version you received.

Anyway, it’s very likely you got fakes. Whether they’re still sending fakes remains to be seen.