20700/21700 mods. Are they worth the hype?

[Susaz]

For a while now I've seen an increase of 20700&21700 mods. Sincerely, for a one battery or two battery regulated mod the increase in size battery is not worth the investment. I still have 26650 mods that were a fluke, really. What do you think?
PS: I use most of my regulated mods with Samsung 30Q batteries. Plenty of power for my style of vaping, moderate subohming and mtl.

 

[sonicbomb]

Do I think improved battery technology and therefore performance is a good thing? Yes.
Are there people who's vaping style requires a mod that takes larger more powerful batteries? Yes
26650s offer more mAh, but not higher amp limits and watt hours. 2x700s offer more of all three.
18650s suit your power requirements, cool. That doesn't have to mean that is what suits everyone.

 

[stols001]

I have one 26650 single battery mod and I like it a lot. For me, usually the added weight is not a concern. But, I will likely buy one for a mech I have coming because I won one and liked it but my kid did too so I gave it to him. LOL, I ordered another and will probably get the larger battery for that, just for more capacity although I am so MTL I'm not sure I really need it. In a regulated mod, my puny MTL vape settings make it unnecessary.

But I think it's great to have options and I think as time passes manufacturers will learn how to use it better, I think. Some of the initial options were a bit flimsy (IMO) but I'm sure they are improving all the time. Etc.

Anna

 

[bombastinator]

For a while now I've seen an increase of 20700&21700 mods. Sincerely, for a one battery or two battery regulated mod the increase in size battery is not worth the investment. I still have 26650 mods that were a fluke, really. What do you think?
PS: I use most of my regulated mods with Samsung 30Q batteries. Plenty of power for my style of vaping, moderate subohming and mtl.

By not worth the investment do you mean not ditching all your current mods and batteries to switch to 2x700? I wont do it till my current mods wear out or I sell them or can no longer get batteries. If metallic lithium comes out in only 2x700 that might change the equation. It’s still several years out though.

 

[Letitia]

I'm wanting a single battery device but also want more battery life than a single 18650 would give me...so yes obtaining a 2x700 device is worth it to me personally. I still love my dual 18650 devices and see no reason to switch to one or the other. I will use all of them as needed like I do now.

 

[Zaryk]

When i was getting rid of all my old mods and getting new ones, i discvered the 2x700 batteries and gave it a shot. Now I only have 2x700 battery mods in my daily rotation, and rarely use my 18650 mods. Mostly because I don't have to pack around extra batteries with me unless I want to, not because I need to. My mods might be a couple mm bigger, but my overall bulk from the extra 18650 battery case and such makes it much more combersome. In my single battery mods one 21700 lasts me all day, where with 18650s I would be swapping out at least once or twice a day (depending on which 18650 battery).

 

[score69]

Most of my mods are 18650 duel battery mods. I'm not a high wattage vaper, I just prefer duel battery in 18650 since I get more life out of a pair. I'm pretty happy with a duel 18650, when I get disappointed is when I go back to single 18650 devices. I primarily use singles now, only when doing MTL and wattages under 15w.

I've recently picked up some 20700 and 21700 mods, and in all honesty, I haven't charged a pair of 18650's in a while. I just haven't been using them. It's nice to have the option, but I prefer single 2x700 mods.

If you are using the 30Q, you're probably not a high wattage vaper, neither am I. I usually stick under 30w. The Sanyo 20700B is a 4000mah 15A battery. I can vape all day on one at 30w. I've gotten used to that the past month or so. 18650's kind of seem like a hassle now, at least a single battery device.

Everyone will find a different value and preference. I wasn't expecting to be so pleased with the 2x700 mods I've been using. I stocked up some on 18650's before I used 2x700s that I probably will need to PIF rather than sit on them and have them go bad.

I like my 18650 mods, they just don't get much use these days. Something new that is 2x700 capable is much more desirable. That's just my take on it. YMMV.

 

[puffon]

It's great there are more options for everybody now.
For me, I have no use for 2x700 batteries.
I always have 2 mods with me, so never carry extra batteries.
Also never "carry" the 2 mods, they ride in the car or cart, cup holder.
Currently a 2x700 is about double the cost of an 18650, for only 1000mah more.
If a 20amp 6000mah 21700 is developed, I might make the switch.

 

[score69]

It's great there are more options for everybody now.
For me, I have no use for 2x700 batteries.
I always have 2 mods with me, so never carry extra batteries.
Also never "carry" the 2 mods, they ride in the car or cart, cup holder.
Currently a 2x700 is about double the cost of an 18650, for only 1000mah more.
If a 20amp 6000mah 21700 is developed, I might make the switch.

And there you go. A perfect example that we are not a one size fits all community.

Agreed, I think it's great that there are so many new options available to us all. I'm definitely hanging onto my 18650 mods. They will most certainly get used. Right now, I'm just enjoying the 2x700's. Who knows, in another year or so I might be back on the 18650 train.

 

[ShaneR42]

They have their usage scenarios and will benefit those who need it. So, from that point of view, yeah...they are a good thing.

For me, personally, I have no use for them. I'm a 90% MTL guy at 10watts,or below, in a single cell mod, so a 18650 is more than enough with 24 hours use on that one cell. For the other 10% of the time, when I'm DTL, it's the same story. 50 watts or below, usually on a single cell, but just as often dual, and 18650s are more than enough for my scenario.

 

[madstabber]

I think 21700 & 20700’s are great in single battery mods. I find 18650’s lacking in a single mod and the slightly bigger and increasing power of the 2&700 batteries just what the doctor ordered. I’m a doctor in this scenario and I ordered the bigger batteries.

 

[Hightech Redneck]

I squonk mostly.
By the time you add a bottle, most dual 18650 mods get quite large.
I have two 20700 single batt squonkers I carry thru the day and get a full day from both with no issues(maybe 1.5-2 bottles in each, so I vape a lot lol).
So in my experience they do help a lot compared to my single 18650 mods.
With the right battery of course, the new Samsung 30t 21700 is supposed to be great. I don't have any, yet lol.
But as mentioned to each their own and ymmv.

 

[chellie]

Is there any difference in safety from 18650 vs 20700? or the same basic precautions? I've been looking at different mods and see more and more that take 20700 and some come with an adapter for the 18650. I vape low to medium wattage.

 

[stols001]

I think it's the same general precautions but if you build a bigger battery, well, there's more battery to explode and etc.

With that said, I haven't heard of any 207--series or 266-- series batteries exploding but that doesn't mean it hasn't happened. I think that getting a decent cell that's not a rewrap is harder, per Mooch testing? So I guess that may be a concern, there are some well rated batteries but since they're all rewraps (that I know of, I may be wrong and I think more are coming out all the time) well, it's harder to know what the specs really are, so there's that.

I stand ready to be corrected on the last part though. I'll be getting a 20700 battery soon so I will be taking a closer look at testing.

Anna

 

[Zaryk]

There is no difference in safety procedures from 18650s to 2x700s. The only difference is they are a little larger (5mm taller and 2mm wider for 20700 and 3mm wider for 21700) so you may need to get a charger that accommodates the larger cell if your current charger cannot open far enough. I run Samsung 40T 21700s in my mods, my wife runs Sanyo 20700As in hers. Both perform better than any 18650s I have used, but get treated exactly the same as all the 18650s I used.

 

[Susaz]

I squonk mostly.
By the time you add a bottle, most dual 18650 mods get quite large.
I have two 20700 single batt squonkers I carry thru the day and get a full day from both with no issues(maybe 1.5-2 bottles in each, so I vape a lot lol).
So in my experience they do help a lot compared to my single 18650 mods.
With the right battery of course, the new Samsung 30t 21700 is supposed to be great. I don't have any, yet lol.
But as mentioned to each their own and ymmv.

I love my Pulse 80w. But I sqonk at home, throwing a squonker into a purse is a sure way to make a mess. At home I usually have plenty of batteries to spare, and I have quite a stock of batteries. Now I have to do it all over again... And as for extra oomph, nothing a Samsung 18650 30Q or the brown LG can't give you... I still can't quite see it. Still the Pico 21700 is SOOOO cute!

 

[flavourchaser]

My Pulse 80w is capable of 20700, but I just stick with 18650, I use Sony VTC6 batteries. I also stick with single coil low profile builds as it's enough for me. I got heaps of 18650 batteries for my other mods, I'm happy with it. YMMV

 

[RayofLight62]

I bought some single 21700 battery mods (Espion solo, Pico 21700 and Puxos) and I didn't noticed any noticeable difference with the batteries they were provided with.
Two weeks ago I were able to purchase here in the UK one Vapcell 21700 3000 mah cell, which is a rewrapped 30T. Only then, with this 10 milliohm battery, those mods started to shine, behaving like a dual 18650 mod.
Problem is, this proper battery is hard to source and is expensive, as I paid 15 British pounds for it.
The bulk of commonly available 21700 batteries is 20 milliohm internal resistance, so they bring to the plate the marginal advantage of increased runtime.
Until good 21700 cells become the norm, the newer class of vape mods will remain, IMO, a novelty.

 

[gpjoe]

...

If metallic lithium comes out in only 2x700 that might change the equation. It’s still several years out though.

Maybe for vaping, but I don't believe at any point in time that 2x700 batteries will become the only option, certainly not in "several years". Remember vaping is not the only use for other size batteries - you have power tools, laptops, flashlights, etc and those aren't going anywhere. It's true that vaping equipment is evolving very rapidly, but there are many other uses of lithium batteries that drive the market and demand.

 

[mimöschen]

For mechanical mods and my style of vaping the added runtime of 21700 batteries like the Golisi S35 or Samsung 40T is a huge plus in my book.
Mods that take only 20700s are nonsense however, because the readily available 21700s perform much better than 20700 cells.