Maybe I missed it but did you say which seller you purchased from? Lots of fakes out there and some sellers who want a faulty unit returned (which would cost more than the product.)
Thanks
They used type A screws. Maybe I will find some time and try to inspect the circuit a bit more and try if that was the problem. I guess these are handassembled and someone slipped the screwdriver. They were quite hard to unscrew with a small screwdriver with metal handle.
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I ordered from banggood.
AFFILIATE LINK TO PRODUCT
The smaller10000 Powerbank can be purchased from the xiaomi shop directly, but this didn’t worked for my city because they have a dumb drop down menu which didn’t list every city for my zip code.
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You can easyly identify fakes once you have it, there is a 20digit number on the packaging which you first have to scratch free. You can enter it on the xiaomi webpage and than they confirm if it is genuine and how often your code has been checked until now.
Thanks for the teardown 
Is there still a valid discount code for these?
The picture in the BG listing is the 3.75v version, but I guess it could be random as to what you end up getting.
Midyear6
It is a 6% code which is currently working.
Thanks, that knocks off a couple of $$
Wow! In classic power banks all we can expect is XXX fire battery but panasonic cells in this makes this buy almost as must.
An excellent review!
My replacement arrived last week and it is the other one with the LG batteries inside.
It even is marked as LG on the label. 
It works perfect I cycled it a dozen times with different loads and stuff and I am amazed.
Battery protection kicks in on a bit over 3V and it charges them to 4.35V. Discharge capacity over 10Ah.
The only thing Someone could not like is it does not charge on a 1A USB power supply it pulls down the voltage and then stops charging.
I have not found a test of this battery yet but HKJ did a test on one which is named the same with a green wrapper. LGABE11865 Review
I (of course) got some fake Xiaomi 16000mAh power bank also.
The sign was clear from I opened the package with 3x power banks in it. They had not the security tag that you can scratch and check on Xiaomi website.
The plastic wrapping on every power bank was open at the seal.
The front had “big” holes to the lights, The colors of the USB ports was wrong. Then I opened one up, and I found 5 pink batteries without any marking at all. I also took of the plastic wrapper of one to see if there was any other wrapper under, but it’s just a metallic battery.
I took the PCB and the “chips” has no markings, except a little one with the marking: SS84.
And you can see how little my PCB is compared to the real Xiaomi power banks. It missing the whole right side.
Here is my pictures. Somebody know what type of batteries thees are? No marking except a date 2015.07.03
I’m currently have put 4 of them on my BT-C3100 to test them, but of course, it’s fake. What do you bet the battery capacity will be? It’s around 3-5 hours before the testing is over.
looks like samsung ICR1865026F:
Same color, I will check (I have the 26 F M batteries), but they are totally unmarked. And then my test will show max 2600mAh = 13.000mAh.
But if it’s samsung 26F, it’s not so bad deal. But of course, how safe to use it? With that small PCB board compared to the real ones. No safety there I bet.
Any cell can “look like” a 26F: https://www.fasttech.com/products/0/10012801/2157400-18650-battery-sleeve-pvc-heat-shrinkable-tubing
The OP did not receive a counterfeit - he received a defect. The girlfriend has the earlier version of this and she loves it!
That genuine samsung wrapp really scares :) But I got lot of genuine ones from FT and they are probably the best bang for buck... Why would anyone buying xxx fire cell when they can get genuine samsung?
The color matched perfectly. So maybe some B or C grade Samsung batteries then?
I was referring to this is yet another fake product I have got the last week. Not to the OP. But instead of opening my own thread I used this one, since they had tore down their power banks also, so we had pictures of the real deal, and mine, that is not real.
Where did you purchase yours from?
[quote=Rolz]
Aliexpress. So I will get full refund I’m sure of.
[quote=myhken]
Thats good news
do you have batter doctor with mah ?
is it able to put 2 A ?
[quote=myhken]
[quote=USSR]
do you have batter doctor with mah ?
is it able to put 2 A ?
Not yet, I’m waiting for a package with that hopefully this week.