Well, that MAY be sneaky. You got a non-joyetech battery packed in a joyetech box?
That wasn't fasttech though - was it? (that IS where this started - lol).
I've got several 510's and Egos - some Joyetech, some not. In each case I knew (because I looked carefully) which I was getting.
There MAY be a slight overall quality difference. So hard to tell though, I don't think it matters.
With other products, I'm making a judgement call:
I want a KANGER Evod, not a knockoff.
I bought DV branded, acknowledged knockoffs of the Mini Vivi Nova. A couple times.
That IS pretty random, now that I think about it.

That wasn't fasttech though - was it? (that IS where this started - lol).
I've got several 510's and Egos - some Joyetech, some not. In each case I knew (because I looked carefully) which I was getting.
There MAY be a slight overall quality difference. So hard to tell though, I don't think it matters.
With other products, I'm making a judgement call:
I want a KANGER Evod, not a knockoff.
I bought DV branded, acknowledged knockoffs of the Mini Vivi Nova. A couple times.
That IS pretty random, now that I think about it.
EXACTLY, Yet it came in a joyetech box! See what I am saying?