I’m curious… What’s the purpose of such a short fat cell? Especially for a flashlight? Stacking, for high voltage LEDs?
The main reason I want them is it means we could run 6 volt emitters like XHP-70 in any 26650 light such as HD2010. It would also mean that I have a 5,000 lumen shorty maglite.
Here is my update on progress with that vendor. They did answer me back and agreed to send samples. With the cost of shipping for 4 pc is $45 bucks. I could actually tolerate the gouge to find out if these are any good or not. However looking at that cell I see that its NOT an IMR type. This means no powering up XHP emitters. This has me thinking we need to keep looking.
Why? What light would use it besides custom?
could fuel some serious hotwires with these too.
1/2 d lifepo4 to make magcharger packs with?
possibilities are endless….
Any single-26650 light you wanted to stick a ~6v LED in.
Thanks for trying. I’m looking for 26350 batts to do exactly what you said but they need to be IMR for sure.
However, since there are several factory-made 1x18650 and 1x26650 XHP lights out there now, its just a matter of time before a modder makes an aftermarket circuit to run on one cell. Its just a matter of when……
It would pretty difficult to get a step up DC-DC converter to be able to be small enough to fit into a 26650 light. Look at the 6v xhp-70 say if you wanted to drive this at anywhere near its rated level (around 5amps) using a 4.2-3.0v cell you would need to pull close to 10 amps out of it. That DC-DC current is way to much for small electronics that would fit into a 26650 torch to handle!
Would 2 x 26350 NON-IMR batterys be able to handle 5 amp drain at shorter (pun not intended) run times? This would similar to the NCR18650B which can handle 6.7amps But it doesn’t really like too and Ah drop off dramatically. Would make a great hand warmer in winter though!
rechargeable lithium ion battery 3.7v 26350 battery 2000mah
Minimum purchase quantity is 4:
Typical Capacity: 2030 mAh
Max Discharge Current: 6000mA (3.0C5rate)
Initial Impedance: Max:55mW
I eventually got some 26350ies…
Family picture with big sister:
Detail picture:
Sellers specs screenshot:
Finally a quick tailcap reading comparison. Taken from a Fet driven light with triple Nichias on Turbo and different batteries on hand:
Samsung 30Q: 8.7A
Basen 26650: 9.4A
Noname26350: 7.1A
So they are no high drain cells really! But for “normal” 6V XHP lights with a short tube they are useful. My JM35 works fine, Jax Z1 should arrive any day, and a Supfire L5/XHP50 is a work in progress…
Thanks for the info! I would like to have some too. Where did you order?
Wait! Where did you get those? You post a pic of some 26350’s and don’t give us a source? What kinda sadist are you? 
Is it the alibaba source posted by cncyana above or somewhere else? Those cells at the alibaba site look suspicious. :cowboy_hat_face:
They are from Alibaba! 4 PCs minimum, cheap, but ridiculously expensive shipping to Austria!!
Sadly I’m absolutely unable to extract a hyperlink from the Alibaba App. But I’ll post a screenshot of the offer…
EDIT: same as the link in post #27!
I just checked, my source is the same as the link in post #27 by cncyana!
Well, ok. Thanks for letting us know.
Thanks for reporting on these 26350 cells. If these are actually ~2000mAh, it might make the 6V XHP/single cell tube setup more viable.
I’m asking a shipping quote right now, it will be cheaper if I buy more I guess. If I buy 20 of these with ok shipping costs from China, there will be enough people wanting to try them so I can sell them, right? (extra shipping to other blf members would be 3 dollar)
Oh yeah!
Whats their actualy capacity? Round 2k or something? Could be interesting though….for a high amps XHP 35 build for instance……
I just started a charge test with the small opus. Tomorrow morning I’ll post first results (10pm here!)
This morning I found the Opus bt-c100 with an unexpected reading!
I’ll post the test result of a second cell as its finished…
Edit: here is the second one:
Capacity Test seems OK for 2000mAh rating. Internal impedance readings are 0.071 and 0.067 Ohm for the two cells.