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My batteries arrived today and appear to be identical as yours. In my balance weighs 98 grams. One battery came with 3.8V, and the other with 3.79V.

Now i am testing capacity with Opus BT C-3100.

I am very interested in the exact diameter. could anyone measure this for me?

They seem to be the “good” ones as well.
Please let us know the capacity at 1A discharge.
When did you order ?

Just finished the test, the capacity of my Basens at 1A discharge has been 4939mah and 4898mah, im very happy.

Ordered on April 9th

Fantastic! Is it easy to maintain a good contact in the charger bay for the anode end?

Nothing contact problem, the charger is designed for that.

they might be good batteries anyway, but obviously the wrappers with the typo are fake. “someone” just found out which factory is making 26650s and had some basen wrappers made for them, because mooch had a good review of basens. we’re lucky the batteries are good, but i bet we could have gotten a lot better deal than we did.

They don´t seem, they are the good ones ! Lucky you !

Took forever (…well 47 days in shipping), but finally got mine today. Ordered on March 2, shipped on March 3.

Big button, 88 g version, so probably the lower capacity units. Came in plain white boxes with an SKU barcode sticker. ‘Pluse’ typo on every cell. Every cell measured 3.81 V.

The package was typical banggood style, foam wrap inside grey plastic bag. Two of the cells got out of the foam wrap, but made it without damage. Inconsistent, random packaging like this is not acceptable for li-ion cells.

Right, the lower capacity version came in white boxes with SKU barcode sticker.
Can you test them ?

I do not have an easy way to discharge-test for capacity.

Loaded one up and it took only 1200 mAh from 3.8 V to full - not promising. I have some radioshack 3500 mAh 26650s, (protection boards removed), beats any 18650 in a DD light for current drive. That may still be these Basen’s redeeming value.

I have the cells with 88 gr. and the capacity of mine are 4566mAh, 4745mAh, 4653mAh and 4431mAh tested with opus-bt.

Robert

They are 26.25mm in diameter. Compared to the Efest purple 3500mAh the Basen is the clear winner.

I got the fake ones, lighter weight, white box.

Edit: I scanned the thread too quickly, there not fake, just a different run, everything OK.

I don't think it is a fake... could be older batch/ revision. Please take a photo and forward to me. I did ask Neal at the beginning of April after it was highlighted by JPlight. He claimed that he was not aware of the white box version.

I don’t know what all the fuss is about. This sale has been a win, or win win, for everybody involved. Worst case scenario, if you get a so-called “fake” cell. It’s output will be as good as the label claims and likely exceed The capacity of any 26650 cell that you currently own, and it cost you less. Best case you end up with a cell that is slightly over what the label says. Either way you’re a winner.

Did a kind of discharge test with one of my under-weight white-box samples. It seems to be OK.

Running it down to 3V into a 5 ohm resistor, using the USB power bank function of a VP2 charger, yields 13.3 Wh. Doing the same with a 3000 mAh SS 30Q yields 8.5 Wh.

So it is 1.56x ahead of a well-respected 3000 mAh 18650.

I just received the white box version with the typo as well. I’ll pop them on the charger in a bit.

Received these today:


Ordered 3/21/16, delivered 4/21/16.

Weights (grams):

I’m checking their capacities on my Liitokala Lii-500. But they are almost certainly going to be around ~4400mAh.

sigh

EDIT: Surprise! Surprise!

Test tesults: 4750mah and 4665mAh. :smiley:

Now, the question is why such a big difference between my first pair of Basens and this second pair? They all weighed 88-89 grams.

Can these work in series?