26650, best batteries

[Crispycritters]

26650s were, and are, notoriously shit. Nobody makes 26650 mechs anymore because the batteries are so notoriously shit nobody wants them. The only way you can get any reasonable performance out of a 26650 mech is to use an 18650 with a sleeve inside it.

Even though good high Amp 20700s have been available for around 6 years, and 21700s for around 5 years, 18650 mods are still around - because there are plenty of really good 18650s that are still being manufactured and easily available. There aren't any good 26650s and if you see a 26650 mod for sale you can guarantee it will be a fucking relic.

No.

 

[Mbsun]

Lol



Well that kind of explains why my Google searching results forced me to ask the question on here then

 

[oORobOo]

If I had to get one i'd probably go for the Hohm Tech as it's accurately rated, Aspire do a 26650 aswell.

*I'd avoid vapcells and other companies that rewrap.

 

[MetalVape90]

The last pair of 26650s I had were just Efest ones. Lasted for a year with constant use but began to sag very badly after 11 months. 26650s hate been pushed beyond 35w - 40w

 

[PacMan20]

Still use my pair in a vapedroid. Had them for years seem ok to me.

 

[Crispycritters]

Lol



Well that kind of explains why my Google searching results forced me to ask the question on here then

Apparently the problem with 26650s is they are an obsolete size... The batteries we use (particularly in mechs) are designed for high Amp drain in things like power tools and vacuum cleaners (we just get our hands on spare inventory) and basically the size and weight of 26650s makes them less unsuitable. In large battery packs for cars where storage capacity is of far more importance than outright Amp drain capability of the cells ((because the current drain is shared between thousands of individual cells high Amp cells aren't needed in EV batteries), 26650s can store 5,000mah which seems good. but you can fit more 3,500mah 18650s in the same battery pack casing and the same sized battery pack using 18650s will have considerably higher storage capacity than if 26650s were used. The same applies for 20700s and 21700s. You get the same results in smaller, high drain battery packs for power tools etc - high Amp 18650s, 20 and 21700s are just better

Basically because of the limited demand for 26650s there has been zero development and the (few) 26650s around today are basically the same as they were 10 years ago, and it makes no sense to invest money into a cell that basically nobody wants. So basically they're shit - and even the 'good' ones are a bit shit. Just don't bother.

 

[Mbsun]

@Crispycritters
You have me convinced in terms of the post.
To play devils advocate, though

Surely the problem is not so much that 26650 are crap, just that they haven't been developed at the pace of 18650 and 21700

I am going to assume that battery capacity increases with volume in a linear fashion, so a 26650 is 13% bigger than a 21700 which in turn is 20% bigger than an 18650. And amp draw is equal. Yes I probably shouldn't but tbh I don't know what comprises the internals of a battery

What I do think I know, but should check first is in a given area of a square, 3.14/4 is the circle that fits inside it (this is what pi is), I can then subdivide this area into smaller squares, each square then has a circle that fits inside it, of 3 14/ 4 of that squares area
My point being is I could have a battery 20 cm wide in a 20cm wide square box, its area is 314 cm2 , I could put 4 batteries 10cm wide into the box, the total area is still 314cm 2.
So battery pack is as efficient (if things are infact linear) and the volume of material is the same, therfore weight is, no matter if you use a few big batteries or lots of small

So either the reason is the big 26650 is not efficient because its not been developed

Or its not linear, though 18650vs 21700 tells me it possibly is

If you see my point

To play devils advocate here, though in terms of the use of a 26650 for vaping you have convinced me

In

 

[CzesiuB]

26650s were, and are, notoriously shit. Nobody makes 26650 mechs anymore because the batteries are so notoriously shit nobody wants them. The only way you can get any reasonable performance out of a 26650 mech is to use an 18650 with a sleeve inside it.
...There aren't any good 26650s and if you see a 26650 mod for sale you can guarantee it will be a fucking relic.

Actually I do have (not mechanical but regulated) mods:
Ultroner Thor DNA75c and Ultroner Thor II DNA75c. apart from the semi-cosmetic changes, the difference is that the 1st generation can use the 18650/26650 batteries, while the gen II uses 18650/20/21700.
to be fair, all batteries from fogstar and I would say that 26650 stays longer than 20700?

 

[Crispycritters]

Actually I do have (not mechanical but regulated) mods:
Ultroner Thor DNA75c and Ultroner Thor II DNA75c. apart from the semi-cosmetic changes, the difference is that the 1st generation can use the 18650/26650 batteries, while the gen II uses 18650/20/21700.
to be fair, all batteries from fogstar and I would say that 26650 stays longer than 20700?

Maybe, but at what power levels? If you vape at typical MTL or restricted DL wattages then 26650's make sense if the extra bulk and weight isn't an issue, but if you need more than 35 to 40 watts then you'll probably find 21700s with lower capacity will give longer run time because they don't suffer as badly from voltage sag under load.

 

[Rob]

Still use my pair in a vapedroid. Had them for years seem ok to me.
View attachment 320014

Still one of my favourite Mods of ALL Time . Sadly I never could replace my one after we were burgled and lost all vape gear. One day, One day.