yes same store… same link in fact but different times i think he purchased his a while before me.
liitokala Official Store (Store No. 217753)
https://www.aliexpress.com/item/32845153871.html
Maybe like Barkuti said they just made a mistake at the factory and wrapped the wrong cells… they do list this same 21700 in 4000mah version as well
Time to make NOR tests for all the Lii-50E cells you received, The_Fat_Controller. Example:
When you select 300 or 500mA charge current the corresponding discharge current is ≈250mA. When you select 700 or 1000mA charge current, the discharge current is ≈500mA. Big difference which speed things up. 
Are those real Sony VTC6 in your picture? Or are they “LiitoKala VTC6”? Been thinking about ordering these or 30Q’s, but preferably original ones.
ok, dragged to it’s absolute last. Ignore 2.95v END is flashing and the cell is recovering voltage the test finished at 2.8V
Better than i expected.
Cool, that’s more than I predicted. It still seems like a different cell than Petr J got, but not bad overall. About what you would expect from a 5000mah cell. So it’s not the 4000mah with the wrong wrapper on it.
Yes, we know the Lii-500 cuts off at 2.8V.
Look at the above pictures. These 5000mAh (cough!) cells are measuring under 4900mAh in the Lii-500 (in my experience¹ the Lii-500 measures a little bit low). However, according to the above picture the new Lii-500Sucks' deviation is even higher (one Lii-50E cell measured at 5215.5mAh), and it inflates the figures (in my opinion the Lii-500S is a downgrade).
¹ Let me make a small comment concerning the Lii-500. I once tested two Lii-40A cells bought just after being launched, their NOR test 1/0.5A measured 3865.5 (3922.9mAh channel balanced) and 3898.5 (3879.28mAh channel balanced), for an average of 3901mAh. Henrik measured the Lii-40A cells at 3960mAh with 0.5A discharge rate. According to these figures, my Lii-500 measures ≈98.51% off Henrik's station. Yes, I know this may not be fully accurate due to my cells not being the ones he tested, but since the LS21700SA is an industrial product with excellent consistency (Henrik's cells were within ±10mA at 0.5A), and so it must be.
I think it's the same, Petr J. and The_Fat_Controller's cells are within ±54mA.
So, everything's correct. 
No, the difference is about 850mah.
4800mah to 3950mah when both are discharged down to 3.42v.
Petr J never discharged down to 2.8v, but if he did he might have gotten a total of around 5700mah. This seems very high. Amazing if true, but unlikely.
Bah, mine came today but they can’t connect in series because of the heatshrink… ffs
This is well known. For series use you need to add solder blobs.
I have quite a few of both Blues 5100 and blacks. The blacks (flat-top) were originally better, but the last lot form about 3 months ago (with clamps) was worse than blues. I did not do any multiple cycles tests, only capacity test while checking temperature.
Hi, after some years may I know is this the authentic Liitokala Official Store on Aliexpress?
Are their 26650 and 18650 batteries genuine?
Liitokala Official Store?