Well, I was also going to point out what Agro did.
Related search I made, more adequate for european buyers I believe: “14500” search in DURNERGY store
Hope we can see a 7 to 10A continuous discharge rate cell delivering 750+mAh. 
P.S.: Mmmkay…
There are new Keeppower batteries:
http://www.keeppower.com.cn/products_detail.php?id=554 (Shockli 5500 mAh + protection? Too narrow for that!)
UH1835P Keeppower imr 18350 battery 1200mah flat top Li-ion rechargeable battery (Yongdeli 18350 rewrap that’s cheaper than Aspire?)
P1835C2 Keeppower 1200mah 18350 protected li-ion battery (Same as above, but with protection)
Would be great to see them tested.
Personally I’ less interested, but have to note other news:
P1830R protected 18650 battery 3.7V 3000mAh 15A for high power flashlight
P1831R protected 18650 battery 3.7V 3120mAh 15A for high power flashlight
27700 Agro, ∅27×69mm, if that is narrow for you, so be it. I bet a lot of flashlights designed by @#$% won't be able to fit them.
If it is the 5.5Ah PLB cell, they've felt free to “raise” the specification.
I neither like KeepPower's rewrapping policies, nor their jacked up 
prices.
27 mm, not 26 mm. My bad. So it actually looks like Shockli. And yes, it won’t fit many lights.
LiitoKala’s 18650 Lii-35A
It is already in queue.
Nothing new here I bet. At best, the Lii-35A will be a rewrapped Samsung INR18650-35E, highest capacity cell and one I'd rate as “3300”, at most.
It’s actually marketed as NCR18650GA. If they are, they are among the cheapest way to get this cell delivered to south america
By the way, is the new LiitoKala Lii-50A cell in the review queue? 
People is reporting slightly higher current flow to the emitter(s) in their DD-FETted torches versus the old blue cell. A very slight capacity drop, too. Looks to me like they switched their cell provider, smells like Hengji Battery (?).
It is somewhere in the mail.
Looks like something I want to review, I just need to find out where to get it (US is a no-go).
Interesting: Allmaybe 9V 1200mAh Li-MnO2 PP3 primary battery.
This should provide high voltage and top notch capacity for low drain applications (if figures are not inflated, of course).
The company is chinese, they've been promoting their LCD equipped Quick Charge 3.0 PSU recently.
Cheers ^:)
Originally posted on Fri, 09/15/2017 - 15:07; little typo fix.
They are available on FastTech now:
https://www.fasttech.com/products/0/10041027/8874502-samsung-inr21700-48g-3-6v-4800mah-rechargeable-li
I have ordered them. I will be reviewing a 4800mAh 21700 very soon (from a rewrapper).
This iJoy 21700 40A :facepalm: 3750mAh was recently reviewed by Mooch. At just a bit below the capacity of an NCR20700B and up to 24A continuous, great cell.
Cheers 
Ok, I have just used some more money.
My queue is fairly long, this means it might be some time before I test this cell.
How about the PKcell 14500?
Seems to be more than 800 mAh and lower Ri than good old Sanyo.
You reviewed the BTY NiMH cells a few years ago as junk.
Have they or any of the other cheap NiMH sources produced anything worth buying?
They’re still really big on eBay, no surprise.
Jerommel, HKJ has answered this already: