Well I have just done the magnet test on my D4, which passed the authentication code test when I bought it about a year ago & both the positive & negative contacts attract a magnet ?
It passes the other things mentioned by freeme, such as spelling, type face, spacing etc.
CORRECTION.
My positive contacts do not attract a magnet but the negative contacts do
EDIT : Looking at freeme”s pic again although he states that the positive & negative contacts & the sliders “do not attract” a magnet his picture of a “real” D4 shows that the positive contact & sliders do not attract a magnet but the negative contact does.
Confused ?
Going by his written word I have a fake but going by his pictures I have a real D4 ?
As my charger passed the verification code test properly, has no spelling, spacing mistakes etc & conforms to his pictures of a real D4 (but not his written description of a “real” D4) I am going to go with I have a genuine D4.
PS. how the hell do we insert smilies on this new format forum ?
They are voice operated, just say "insert smile". :D
hmm this seems to work. :diablo:
Taobao store: 白金宫殿 DO NOT BUY FROM THEM
I believe they are not the only one supplying fake NITECORE chargers. I am not surprised if they are been sold in eBay or Aliexpress as well.
Thanks for the warning!
Still I am not buying any at all since Nitecore states copper yet no copper where they claim it and that makes even the genuine not as advertised. Bye bye nitecore for future buys for me.
I understand that you may be doing this on principal. With that said I don’t think it’s normal to use pure copper on sliders like that, regardless of what Nitecore states.
Sure and if they would just say “non magnetic metal” I would not have any issue with it 
Fair enough.
I think the problem,as Wight points out, Nitecore are possibly not describing their products correctly and if you contact them to clarify, they don’t reply. So I understand The millers point.
My D2 is fake according to the magnet test, 240v input socket, verification number doesn’t exist and it won’t charge AAA eneloops without taking them to 1.59v. But when I emailed Nitecore, 3 times, I didn’t get one reply.
I now avoid Nitecore products.
I just received 8 Nitecore UM10 chargers ( for gifting ) and found the negative slide contact instantly grabs a magnet, while the positive contact does not. I have done some researching to learn if “all” Nitecore chargers use non-magnetic metals, without any success so far. I was going to contact Nitecore until reading a members post mentioning Nitecore did not reply to his correspondence, so I hope to save time and learn the answer here. If they are fake I of course need to contact the shipper right away,and also update you who the supplier is.
Thank you
I got a (really good) fake i4 from EdisonBright on amazon, but that was about 2 years ago so no refunds, and the packaging is long gone.
It fails the magnet test and there aren’t any nitecore caps.
Edit: 3/3/16, since I’m officially in the OP reporting a fake, I thought it would be a good idea to say that the purchase date from EdisonBright was 11/11/13. I believe this to be one of the earliest fakes to be reported.
Freeme,
Thanks for the illustrations!
Your post prompted me to check my charger. Fortunately, it passed all the visual and magnetic tests. 
Here is a link to answer the magnet question for “all” Nitecore chargers.
http://charger.nitecore.com/identification-guide-nitecore-charger-users
I just received Fake UM10’s. What would be the best solution to resolve this, viewing it as a BLF member and satisfied Banggood customer? Is there a BLF member that is also with BG?
I took mine apart all of my parts are labeled with Nitecore on them but i did buy mine in 2014
My D4 has internal parts labelled Nitecore & my positive contacts are non magnetic (as Nitecore say they should be), however my negative contacts/rails are magnetic which Nitecore state shows a fake ?
My unit also passed its authentication code test so I believe it to be genuine even though my negative contacts/rails are the complete opposite of what Nitecore state they should be.
I do not think that their magnet test advice is 100% correct.
My D2 fails the magnet test, the verification test has a 240v figure 8 like freemes fake. And it HAS killed 6 AAA cells. 2 eneloop, 2 energiser, 1 Panasonic and a Recyko. In all cases it has taken them to 1.59 volts. The fist couple of times I did not realise what it had done until I saw 1.59v on screen.
We may not have seen anyone house burn down yet and it is unlikely but, if I pay for a real item I expect a real item otherwise people would not be complaining about fake Cree LEDs.
- If there are “fakes” that work the same, what is the problem ? We don’t know that they work the same.
- And where did they come from? The manufacturer’s location is unknown.
- Same factory, same parts? We don’t know about the factory. Definitely not the same parts.
- Now, if someone has had a bad experience with a shoddy “not Nitecore” charger that has burned down their house, or killed their batteries, I don’t think I have heard about it. Somehow, that thought isn’t very reassuring. :weary:
- Nitecore don’t seem to be interested in following up “fake” allegations. I think they are interested in following up on fakes. [Reference Link]
- I suspect it is FUD. I suspect that it is a genuine concern. People deserve to get the bona fide product that they paid good money for.
- They are not expensive. Does the low purchase price in any way change the fact that the buyer didn’t get a genuine product?
- Why bother to clone and cheat? I think they clone and cheat to make more money than they otherwise would if sold under their own brand.
- The design is good, and the cost of parts add up to a decent amount. I’m not aware of any testing of fakes to ascertain whether their design is factually good.
- Show me a fake with rubbish inside and I would worry. Hmmm… I don’t have an anwer to that one. O:-)
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Awww… you don’t need no pic’s to mock, you’re doin’ jes fine! 