Yes Narsil on a light like this sound so sweet
But of course there are challenges for hardware / software combo designed for 2,7-4,2V input Fet+1 to run on 5,7-8,4V input.
Thanks for the info. I see your testing in the Lii-500 show over 5000mAh.
The photos on Gearbest and ali express appear to be true flat tops (recessed) that wouldn’t make contact. But the cells you received actually have a raised (protruding) + end? Did you get your LK26650 cells here?: Snow White’s store Electronics
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These are looking good for the money, but with the inconsistencies you mentioned about the flat tops and the reports of lower capacity, I’m concerned there may be some fake/re-wrapped cells out there. I’ll give them a shot, just have to decide where to buy them to hopefully get good ones.
No inconsistencies reported.
They are all flat tops.
All tests by many different members using different analysers have shown over 5,000mah.
The working/not working in series is more down to differences in the lights I think rather than differences in the cells.
In some lights they work in series without spacers in some they don”t.
That could just be down to the lights themselves, maybe having softer springs.
I bought my cells from Aliexpress & Gearbest, I can”t remember the actual stores I am sorry.
I also have Keeppower 5200mah, Basen 4,500mah & Thorfire 5000mah 26650”s & find these Liitokala”s the best performing cell & only about $5 a cell :+1:
Just checked Aliexpress purchase was from Snow White.
Gearbest purchase was here http://www.gearbest.com/batteries/pp_360842.html
I must admit that with the cells being true flat tops I was surprised that they worked for me in series without a spacer, but adding a spacer such as a small magnet or a proper spring spacer that are widely available for peanuts would be no big deal.
Also with the L6 having LVP them being non protected is not an issue & TBH I rarely use protected cells in any of my lights nowadays.
Gearbest seems lowest price at ~$12,50 for 2 liitokala 26650 cells
Think I will order a pair for the L6 if they don’t carry the heters
Edit: Nvm heters are back and I like the S70 and L6 to use the same cells.
Sorry, haven't looked at it yet. Main issue is needing an LDO, and adding support of just a FET (no 7135), then the battery level update. I know I got LDO parts, know I got blank drivers w/LDO support, just no chance to check it all out.
4 hours sleep last night doesn't help (latest Narsil release), plus the work/make money thing... 
I got 4 of those Liitokala 26650's from GB on order now, along with 4 VTC5's and 2 GA cells ($47 order in total, every top notch cell for under $5) - deals too good to not take advantage of. If the Liitokala's actually perform better then the best EFEST 4200's, it makes it the best 26650 cell, given the capacity at a true 5000.
I will be using Shockli 26650 IMR 4200mAh purchased from Mountain Electronics. These batteries have good results from being tested at: Battery test-review 26650 comparator.
For the Shockli, I would not call a 0.6 calculated ohm internal resistance a top performer though. It's probably less high performing than a EFEST 4200. The VapPower 4200 tested better at 0.5 ohms, and higher voltage through-out the discharge curves.
Unfortunately HKJ is not testing the best available cells out there, for whatever reason, so we can't compare the best against the best. He's got a queue of provided cells, and the best ones aren't getting in to that queue.
The better BASEN's are a better deal, though sourcing good ones has been problematic. But of the Liitokala have true 0.4 or 0.5 ohm performance at 5000 mAh, it then would be the best cell I would think. Again, we may never see them tested by HKJ though, just like the EFEST IMR 4200's.
Thank you for the updated information!
I should clarify though - think he's tested more cells than he lists, because of the pair, if the differences between the 2 cells are significant enough, he doesn't post the results, deemed unreliable. I vaguely think this happened with the BASEN's, maybe? Or was that mooch? When he's asked for suggestions, I begged him to test the popular cells we use for high performance, but it didn't happen totally, though did partially - but 26650's didn't seem to be a priority.
Thank you again for this information to be added to what needs to be a bigger data pool for a general public.
I have tried to navigate 26650 batteries and flashlights, but given the inadequate available information it is all to easy to take a misguided turn.
I find it interesting that among 18650 cells there are a few top brand name players that rule the roost. But when it comes to 26650’s there are quite a few reportedly good cells of much lesser known name branding. That does indeed make it more difficult to weed out the good ones and the best deals.
I bought 4 of the Basens when they were all the rage, I use some King Kong cells as well as some older LiNiMnCo cells from Powerizer (think I’m remembering that correctly) and like so many others, I have some EVVA’s as well. But my primary go-to 26650’s are once again Efests. I have far more Efest cells than any other brand, in every size.
In 26650's, I got a whole bunch of EFEST 3500's, 4200's, and 5200's, as well as a bunch of BASEN's, pair of Vappower's, pair of MXJO's, pair of Powerizers (old), lots of KK's in 4000, 4200, and bunch of 26700 5000's, plus EVVA's, plus KeepPowers, plus more I'm forgetting bout. Did some experimental purchasing - always wanting to find something better. Wish I bought more Powerizers - they were already gone by the time I got to my 2nd higher volume purchase.
I’m not arguing with anyone’s cell choice but do keep in mind that some of these cells are significantly shorter than the recommended cells. If you go too short you may need something to act as a conductive spacer such as the one in the picture KawiBoy posted. I’m not a fan of the magnet trick. Too much danger potential for my liking. Some of these unprotected cells come in around 65mm which in the double stack is almost 10mm shorter than the cell stack the light was designed around. Most will be fine and the L6 springs are good but it’s still something to keep in mind.
Ah great I’ll go for these then use all four for the L6 and S70 so still the same cells in both
thanks
Edit sorry J-Dub74, yes thanks
I’ll put a flat magnet with a bit of this stuff on the cells if needed
It cures good, can handle heat, stays rubbery and peels off easy if I want to remove it.
http://s.aliexpress.com/63YzIJrm
I have growing collection of different manufactured or re-wrapped 26650 batteries. and I am ways eager to read about new ones.
For the Convoy L6 with two batteries in series the length and positive terminal height are needed to be considered.
Only certain Keeppower protected 5200mAh are 71mm.
Soshine 5500mAh, Fenix 4800mAh, Keeppower (non-protected) 5200mAh, and Shockle 4200mAh all have positive terminals that make good contact and whose size will fit pretty well in the Convoy L6.
I purchased a second L6 a couple of weeks ago, this time from Banggood. It came in today, the light was in pretty good shape but only one side of the emitter would light up…only two of the 4 die. I had another XHP-70 that I took out of my first L6, which I replaced with a P2 1C…so I replaced the bad emitter and it worked fine. I didn’t reflow anything, the emitters were still on their copper boards.
I wish this light would be available in matte desert tan
Some times if you get lights hot enough with a torch they will turn that color. Seriously one time I got a Type III HA natural Surefire KL4 head so hot it turned desert tan and stayed that way. Cant say I’ve tried it with a black one though…