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Which is more future-proof ? 20700 or 21700 ?

E

EZG

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Hey

I need a new dual battery mod, and after a lot of read I still can't chose between 20700 and 21700.

I know I could aim for a mod instead so the battery type is set, but I prefer to aim for a battery type.

What's your experience with both ? Which type has the best reliable batteries ?

And the most important to me, which one will settle as the go to replacement for 18650 ? It's probably subjective, or not, maybe I missed some key informations.

Waiting for your feedbacks have a good day/night
 
H

HondaDavidson

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WHAT BATTERIES ARE USED IN STUFF LIKE FLASHLIGHTS AND RADIOS? The most likely battery OF the future is the ones NOT use ONLY in Vaping devices.

Neither 20 series battery will REPLACE the 18650.
 
r055co

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HondaDavidson said:
WHAT BATTERIES ARE USED IN STUFF LIKE FLASHLIGHTS AND RADIOS? The most likely battery OF the future is the ones NOT use ONLY in Vaping devices.

Neither 20 series battery will REPLACE the 18650.
Click to expand...
I've got flashlights that use 20700 and 21700 batteries ;)
 
The Cromwell

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HondaDavidson said:
WHAT BATTERIES ARE USED IN STUFF LIKE FLASHLIGHTS AND RADIOS? The most likely battery OF the future is the ones NOT use ONLY in Vaping devices.

Neither 20 series battery will REPLACE the 18650.
Click to expand...
But they make adapters to make the 18650 work in place of the larger cells.
Just does not last as long per charge.
 
The Cromwell

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On whether the 20700 or the 21700 will have a longer lifespan?
They are made for auto power packs and vacuums and such not for vapers.
Also I expect that the size capacity race is not over. how about a 22700? If it fits the cordless tool manufacturers size spec and power requirements they might want a 20750? If a company makes a contract order for enough of them the battery makers will run them for the end user in fixed applications.

18650's should be around for quite a while.
Might get more difficult as all loose cells used in vaping could get due to future regulations and such.
 
gsmit1

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I see folks out there calling for the move away from 18650's as if it represents great progress or something.

Maybe it does, but I'm not getting exactly why. Really good ones are now everywhere and dirt cheap (even for me), which makes having extras in a case that costs less than a buck, reachable for anybody. Even a decent charger can be had for cheap too.

Maybe I'm missing something, but I don't see the big rush to abandon 18650's. I do understand the advantages of larger cells, but that still doesn't make me long for them.
 
The Cromwell

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In a couple of months I will have been vaping for 4 years.
I bought an elcheapo on clearance Trustfire TR 2 charger for like $7 shortly after I started vaping.
Been charging most of my 18XXX cells in it. Still works great the slides are still smooth and charges good.
Actually I also have an I2 and I like the Trustfire better the slides are smoother.
 
Vape Fan

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The choices for dual 2xxxx mods are so limited. There's nothing I like. Besides that dual 18650 regulated lasts me longer than a day anyways. No need to up the cost or weight.
 
r055co

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Vape Fan said:
The choices for dual 2xxxx mods are so limited. There's nothing I like. Besides that dual 18650 regulated lasts me longer than a day anyways. No need to up the cost or weight.
Click to expand...
For regulated I don't see going with 2x700 for now. But for Mech's the 21700 is outstanding, especially with the Samsung 30T for they are the hardest hitting batteries available with excellent battery life.
 
Chainvapor

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If you are a regulated mod user, I see no reason to upgrade from the 18650's. Plenty of them are good and cheap. If you like tube mech mods then the 21700 is KING! I run a Samsung 30T 21700 in a single tube mod and it hits harder than a parallel mod with any brand 18650 batteries you can throw at it. The 30T is a KICK ASS BATTERY!

CV :)
 
Vape Fan

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r055co said:
For regulated I don't see going with 2x700 for now. But for Mech's the 21700 is outstanding, especially with the Samsung 30T for they are the hardest hitting batteries available with excellent battery life.
Click to expand...
I agree with both statements. I use 30T in mech also. I run a Golisi 21700 in Mirage because it was a good choice at the time for regulated. Still is.
 
Jon@LiionWholesale

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21700 is definitely the better bet, most companies are going with that on the battery pack side and as others have mentioned you can always fit a 20700 in a 21700 device. The 21700s are quite a lot better for just that extra one inch in diameter.
 
gsmit1

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Yeah, I was gonna say, that's one monstrous battery. 100 amps CDR and 10,000 MAH. :D
 
The Cromwell

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2X700 cells are mostly all power cells since they are pretty much designed for high drain battery packs in autos and vacuums and such.
 
Jon@LiionWholesale

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gsmit1 said:
Yeah, I was gonna say, that's one monstrous battery. 100 amps CDR and 10,000 MAH. :D
Click to expand...

I guess one inch more than a 20700 would be a 46700. Yeah I could definitely see 10 Ah 100A CDR out of that. Would be a chunky battery though. You never know with Tesla though, maybe I just predicted the future of batteries?

The Cromwell said:
2X700 cells are mostly all power cells since they are pretty much designed for high drain battery packs in autos and vacuums and such.
Click to expand...

Actually energy cells are quite popular too. We've been slammed with demand for the Samsung 50E and similar, which is a 5000mAh 21700 which technically is 10A CDR but they don't recommend using it over 5A. But obviously don't use it for vaping unless you vape extremely low watts and know what you're doing, that's a lot of energy inside a low amp battery.

I do agree the 2x700 market is a little more focused on the power cells though.
 
UncleRJ

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I really like the 21700s. You can always get an 18650 adapter if needed
 
hellcatrydr

hellcatrydr

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I'll be honest... I failed here... I thought I might get away with replacing my dual battery 18650 mods with a single battery mod here.

I just Vape (a Crown 3 sub ohm tank) at .5 ohms at about 65 watts. But for me, the difference is ... like totally amazeballs.

2 18650 batteries beats up 1 2170... hands down.
... much to my sadness. :(

.
 
5150sick

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I have absolutely nothing to add to this conversation.:cheers:

You guys knocked this one out of the park.:bliss:

Every suggestion, opinion, or fact that I would have provided about this question had already been posted by post #15
 
Carambrda

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In terms of compatibility, 21700 because adapter sleeves are everywhere, which is pretty obvious. In terms of whether the difference will be worth the sacrifice in compactness/size/weight (and quite possibly also the feature set, the ease of use, the aesthetics, price differences, etc. etc...) of the actual mod choice in question, that's another story that can be debated upon and that tends to be way more of a personal preferences thing. For a regulated mod, aside from the "standard" single 18650 and dual 18650 mod choices, you now have the additional option to go for a dual 21700 mod instead like, say, the Wismec Reuleaux RX2 21700. But the Wismec RX Gen 3 (triple 18650) isn't that much bigger in size, just shaped differently... and so it largely boils down to personal preference like I said... HOWEVER, the RX Gen 3 will give you a bit more vaping time and has a higher maximum wattage capability. Just to give you some idea of what differences can be like.

As for mech mods I just buy/use what I like and that still also includes 20700s despite I own multiple 21700 tube mech setups and a bunch of Samsung 30T batteries. I actually even can stack 4 of these Samsung 30T batteries in series in my Scoundrels Golden Rod (dual 21700) after I attach the extension piece of both my Scoundrels FUK 182021 and my Scoundrels FUK 182021 Hentai just to show you who has the most future proof clouds around here. :)
 
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