Just to let people know the last batch of King Kongs from fast tech were INR. So if you ordered from them check to make sure that you are not mixing and matching battery chemistries. I wrote to let them know.
Just a heads up. Hopefully they have more INR’s and send me some of them as replacements. I’ll update this when they get back to me. I also ask them to put a warning out and to check their stock and update their site.
I understand this has happened at other places as well.
I ordered some as well and they came last week, i just checked them and they are INR, but i only use them in 1 cell lights anyways
Stupid on KK part….Why cant they supply consistent batteries, or at least issue the warning that you went out of your way to refer?!
Lets see how FT handles it! Im sure it will be on par with what we’ve seen so far 
The INR are the better of the two, it’s just that it’s not cool to be sending out both.
I have not had a problem with fast tech so far and I’m hoping they get this one right as well. You are right about KK, this isn’t the first time they have done this.
I just ordered two pair of the ICRs about a week ago. I need them to make up two sets of three for my J18s. This will be a pain if they send INRs. I’ve already been through the “sent wrong product” scenario with them before.
That was why I ordered mine as well. I had four just about new ICR’s and wanted to be able to run two lights at once that both take 3 batteries.
Exactly my situation here. If they send the wrong product they are willing to pay the shipping to send them back. Trouble is they want the item back before they will give you the refund, and that takes weeks if not months to happen. I won’t go through that with them again. The next time it happens I’ll file a PP dispute and go to a claim if necessary.
They have only messed up once with me and they sent me a new item when I sent them the mailing receipt.
How do you know they're INR's instead of ICR's?
the tongue test
They say on them what they are, mine say:
[something in chinese] INR26650 4000mAh 3.7V
if you look on the cell. the model number is prefixed inr or icr, I dont have a cell with me to be more accurate but its pretty clear.
I wanted to give KK more credit. Like they mislabeled it and weren't dumb enough to send out something that's labeled as something else, and you would only know because you tested it. That's sad for KK and FT.
I just got two from FT, and both are clearly marked ICR26650. I had seen this thread earlier, and decided to take a chance. The cells I got are identical to the KingKong ICR26650s I got from IOS.
You may be aware that I just went through this! Also see post #107 for their BS Tech Support response. Support was trying to tell me that "ICR" and "INR" were just date batch codes. I argued and finally got them to agree to send me two that were stamped "ICR". Those should in fact be arriving today. I did tell them via support ticket that even if they had to send raised-tops I would accept that (I had ordered flat-tops). We'll see what I get. I did post on the flat-top ICR product page "discussion" that FastTech was sending out INR's instead of ICR.
-Garry
Guys - INR's suck for single cell XM-L2 high amps, ICR's are much better - just run HKJ comparator and see... If you order ICR's and get INR's, I'd be pissed! The ICR cell is fantastic for it's low resistance.
I ordered 2 pairs of KK ICR26650 4000mAh a couple weeks ago and they arrived a few days ago and all 4 were ICR as they should be. They all tested exactly 3.76v and charged perfectly. I couldn't be happier.
I was a little nervous when I ordered them because I had heard from someone else here (I think it was Garry?) that he ordered the ICR and received a mix of ICR and INR. I figured they had straightened it all out after all mine were correct but perhaps I was merely lucky, or perhaps you guys were merely unlucky. Either way I'm sure you will all get it sorted out. Maybe you'll even get to keep the INR cells if they ship you ICR replacements. Would make the inconvenience worthwhile to me. ;)
Nope, they ask you to RMA them back and they cover shipping cost. Did you order flat-tops or raised-tops? I am guessing the flat-tops are coming INR and raised-tops are ICR.
-Garry
That could well be the answer. I ordered button tops. I sure hope they get this crap straightened out for you guys. 
It seems their button tops are the ICR’s while their flat tops are INR’s.