Why 21700...?

So, I recently purchased the Gaur-21 with the Valyrian II Pro, and the mod is 21700 and 18650 compatible. I was curious as to the benefits of the 21700 batteries, because I’ve only used 18650s.  


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Eleaf Ijust 21700 Mod

Hey everyone! I recently bought an Eleaf Ijust 21700. I did my research on it to see of it was up my alley before I did. I love it! I know it is a regulated device, and has a max of 80 watts. But I'm curious as to how it works. Specifically, how it reads coil resistances and adjusts the power output accodingly. If anyone can enlighten me on this particular query I would greatly appreciate it. Thank you!  

21700 Mods

I am looking for a dual 21700 mod. The available ones, I probably will buy but, there aren't many to choose from. There are several single 21700 mods. My question is how long (on average) will a single battery mod charge last (I know this question is subjective). I vape around 65 watts, most of the ones I have seen online are rated 100 watts. I do not want to leave home and my mod die out because it was a single battery mod. I know I could carry a spare charged battery around, I just do not want to have to. Thanks  

When To Charge 21700 Battery?

Hi

I'm using Samsung 21700 T40 batteries.
Trying to figure out..
Is it best to charge a battery when it's discharged or nearly discharged?

I like to keep things simple with a routine of charging once a day, but then the battery will be set to charge even when there's 15-30% power left.

Is that bad for the battery?  

35a Battery

I ordered a SXmini SL class with the sx485j chip and it recommends a 35a battery. I only use .15ohm coils at 60 watts so I should be good with a samsung 18650-35E right? Going to buy 21700 batteries once these start losing their charge because I just got them recently..  

Can You Charge A 21700 In A Pila Charger?

Since I started vaping over a decade ago I've been using Pila chargers and hadn't seen a reason to buy anything else.

I'm now looking at a mod that ideally wants a 21700. Will it fit into the Pila? If not, what's a good charger to use with it?  

Is My Battery Calculation Correct? + Questions

Hello—am I calculating correctly? I now have a Jackaroo mod that takes a 21700 so I ordered the Molicel 21700 P42A. Someone on the forum helped me out once before and here is the calculation I used. I figured in at 30 watts –I am usually between 23 and 30 watts

30 watts/3.2 battery cut-off voltage/.9 - 90% efficiency = 10.4 Amps
(30)(3.2)(.9) ---max wattage to be used is 86.4

What about my 2 battery mod --is that calculation for each battery. For example, I ordered a Geekvape Aegis X that takes 2 batteries so If I had that same calculation would my wattage be 86.4 per battery?  

Wrap 20700 With 21700 Sleeve?

I have a couple 20700 batts that need rewrapping but I'll never buy 20700 batts again so I don't want to buy a bunch of 20700 wraps.

Will a 21700 wrap fully shrink on a 20700?  

Higher Wattages (50+ Watts) Useless On Voopoo Drag X Plus?

I've been using only twin-18650 mods for some time, and before the shipping ban came into effect, I bought a backup of my most-used mod (a Geekvape Aegis X), but since the 100W single 21700 / 18650 Voopoo Drag X Plus was only $35, I also picked up one of them as another backup.

I vape exclusively on RDA's, typically with a 3mm dual coil twisted build with 24 or 26 gauge Kanthal or nichrome-80. 5 or 6 wraps with 24 gauge, 6-8 wraps with 26 gauge. I typically vape these between 90 and 110 watts.

I did not expect to get a 'true' 90-100 watts out of the Drag X, so I set a target of around 60 watts. I mounted a 3mm dual coil twisted 28 gauge build with 6 wraps, which on my Aegis X vapes great at 60 watts, and very good at 50 watts. It measures at 0.45 ohms.

But on the Drag at 60 watts, it only vapes at what feels like 30 watts on my Aegis. Setting it higher makes no difference either, it seems to 'top out' at ~30 watts regardless of the setting. 60 watts @ 0.45 ohms is only around 11 amps, so I doubt I'm hitting an amperage limit.

I am using 18650 batteries (VTC5A), and it is about time to replace them, as I am only getting around 70% the battery life as I did when new. I will be picking up some 21700 batteries at the same time, which hopefully help with things on the Voopoo.

Does anybody have any good experiences with ~60 watt builds on a Drag X Plus?  

First High-end Mod




Waiting for my 21700 batteries to get delivered today so I can start using it..  

Uwell Crown 5

IF you were to improve on the Crown 4 kit how would you do it? what would you add or take away from that? would you make the Checkmate 21700 compatible? would you change the colours?