This forum (and this thread in particular) has been really, really informative to me. It's a shame I didn't find it before. I bought some AA Eneloops from DX some years ago (2 packs of 4), and both backs, as I could check by the information provided in this thread, are fake. The batteries from one of the packs (that I bought first) look very well built, so I really believed those were genuine until this week (similar to the ones in #20), but the batteries from the other pack are clearly fake, as they diameter are slightly larger than the standard for AA, which makes it impossible to use them in some equipment, as they can get stuck. I quit buying Eneloops from DX since then. I've bought from eBay (many AAA packs) always and have had no issues. One hint for shopping in eBay (this is based solely in my personal experience): not sure if it is coincidence, but everything I have bought from South Korean vendors look genuine and I have had no issues with late delivery or anything else. Thus, when the prices have little difference, I usually prefer to buy from Korea, even paying a little more.
Cheers,
Zorzi