Edit
Some of them will be tough to know. For the mainstream sizes, like 18650 and 21700, one can probably figure it out by comparing discharge curves to well-known models of similar ratings.
Other sizes tend to be made by smaller companies - this is also why we don’t get the same kind of performance/capacity per volume out of “uncommon” cells like 10440, 14500, 16340, 18350, 26650 that we do from 18650/21700. The companies with the most money and R&D behind their construction/chemistry seem to only produce the highest volume cell sizes.
What’s nice is that we have seen improvement from brands like Vapcell and Shockli cells in some of those sizes. The recent 14500 comes to mind (Vapcell , Shockli ). But we don’t know who the manufacturer of that cell is.
Vapcell Dennis is on this forum quite frequently. Pretty easy to see when it’s at the top
You can set up macros to alert you when a “X” or “Y” keyword is mentioned on “Z” forum. I’m sure many company reps use that or a similar method.
1 Thank
OK, just struck me as odd…. looks like spam or a shill. Sorry and I apologize if it is on the up and up
You’re not wrong to be wary of it these days. That sort of thing I think “guerrilla marketing” is the term for it? is very common.
Cool! Thanks for finding that.
And it goes back quite a ways…
See? Quite effective.
Very good batteries.
Yes, I posted a post on Samsung battery. I just saw this post and replied
Hi ，do U use vapcell 18650 3000mah 25A VTC6A rewarpped battery?
Thanks
Now Discontinued :weary:
We are looking forward to releasing a better 3000mAh 25A battery
Maybe next month 
Who specifically makes the Vapcell 18350 currently offered?
Probably Yongdeli New Energy Co., Ltd. in Shenzhen.
I am partial to Japanese products when it comes to electronics. What reputation does this place have?
Their 18350’s seem to be one of the best available on the market. They might not be consistent. But they’re probably suitable for most 18350 flashlights that don’t have a >10A current drain.
Reviews by HKJ and Battery Mooch might help in deciding whether to try out a particular cell.
What do you mean by that? Is the construction shoddy or something that would lead to cell to cell variance or failure?
Orbtronic makes no claim of ownership of the cell, they tell you the cell is Panasonic and they provide the protection circuit. How can vapecell take a Samsung battery, put their purple vapcell wrapper on it and call it a vapecell? Sounds illegal no? Can I do the same thing, just rewrap batteries and put my name on it?
Toyota put their badge on cars built by BMW and Mazda. Does that make it illegal? No.
Does Orbtronic make their “18350”: 18350 battery 15A 1200mAh Flat Top Li-ion ORBTRONIC or is it a rewrap from some other company like YDL?
The specifications looks similar to a “KeepPower IMR18350 1200mAh”: https://www.keeppower.com.cn/products_detail.php?id=567 and a “Vapcell M11 18350”: https://www.vapcelltech.com/index.php/Show/index/cid/73/id/82.html