21700 batteries will replace 18650 in electrical cigarette industry!

[Steamer861]

@KenD Guess I cant blame you for not trusting the rewraps. The Sanyo "B" has a fantastic run time!
But only 16 real amps, thats low for my needs.
I'm running 4 of them, but only in simple round wire single coil atty's.

Ijoy seems to be leading the way with available, high quality 2X700's.
I would have never thought that would be the case. I stumbled on them, I ordered an Ijoy Captain that came with 2 included 20700's. Not really expecting too much from a mod that cost $47 with 2 cells included. I was extremely surprised when the battery life was better than my 25c 3S 1300mAH Gens Ace lipos!
I have been running 3 married sets, alternating one set each day for the last 7 or 8 months now. They are holding up spectacularly!
I cant speak for all the Ijoy 20700's but the 6 I have, all 5 prong are Excellent!

I, just like most haven't had any thing good to say about 26650's! I ordered a few "MNKE's" & they were Crap! Huge battery that didn't even work as good as an 18650!
Since the Ijoy 2X700's were so good for me, I took a chance on the IJoy INR26650, & it lived up to the hype!

At this point I feel I can trust the Ijoy Brand/Wrap when it comes to batteries

 

[stols001]

I live in the Saudi Arabia of the US, so our internal temps are usually on the high side. I think that might be of use, especially in summertime. Sounds like it couldn't hurt though....

Anna

 

[Ryedan]

According to Mooch:

• Storing batteries in the refrigerator doesn't make much of a difference in battery life unless you live in an area with high temperatures year around. It's not dangerous to refrigerate them but be sure to let them come to room temperature before opening whatever airtight wrapping/container you have them in. - How can we extend the life of our batteries?

Hey Baditude, been a while. Hope all is well with you these days!

It's hard to get accurate and dependable info on it. My numbers are from Battery University. They don't get everything right, but generally they are on the right track.

The difference between 2% a year vs 4% doesn't seem like much, but add it up over 5 years and it becomes 10% vs 20%. In a cool home it might be 10% vs 15% and I'm likely not going to store them for 5 years anyway. OTOH, I've got the space in the fridge so it's free for me to do it, and that works for me

 

[Baditude]

Hey Baditude, been a while. Hope all is well with you these days!

Hey Ryedan. Don't see you on here much anymore. I'm doing well. After almost three years with no income, my disability was recently approved, so at least my attitude and outlook on life is most improved. After limited visits here on ECF the last couple of years, I'm starting to spend more time on here again.

I did try to find some info on Battery University, but couldn't find what I was looking for. I seem to remember that batteries should be stored at room temperature, at about 60% charge. I tend to look for Mooch's opinion on things nowadays, anyway. He's been a blessing to the vaping community. I still remember when we had PM conversations with Mooch when he was considering doing battery testing for the community.

I probably wouldn't keep batteries longer than 3 years, regardless of what condition they seemed to be in. But that's me. Batteries are pretty cheap all things considered.

Good to see you my friend.

 

[Ryedan]

Hey Ryedan. Don't see you on here much anymore. I'm doing well. After almost three years with no income, my disability was recently approved, so at least my attitude and outlook on life is most improved. After limited visits here on ECF the last couple of years, I'm starting to spend more time on here again.

Great to hear things are going well for you Bad! I haven't been online much the last year or two, but I'm recovering from a hip replacement so I have too much time on my hands lately . It's been nice to get back on ECF more again.

I did try to find some info on Battery University, but couldn't find what I was looking for. I seem to remember that batteries should be stored at room temperature, at about 60% charge. I tend to look for Mooch's opinion on things nowadays, anyway. He's been a blessing to the vaping community. I still remember when we had PM conversations with Mooch when he was considering doing battery testing for the community.

I probably wouldn't keep batteries longer than 3 years, regardless of what condition they seemed to be in. But that's me. Batteries are pretty cheap all things considered.

Here's the BU page I have bookmarked.

Yup, Mooch knows what he's talking about and has done a heck of a lot for the vape community. It was neat to be involved at the start and to see how he has developed since. His data is the only thing I look at when I chose a battery these days. Do you remember the Dampfakus.de site? Haven't gone there for a while now

Good to see you my friend.

Same back at ya!

 

[PAL 702]

I don't know if the 18650 battery will ever be "replaced" but I do agree that we are going to see some mods using this more and more. I have no issue with it but I doubt I will ever retire some of the mods I have (as a tootle puffer) but it's nice to know what may be coming down the pike I do think it may take a while for some manufacturers to really get a handle on formfactor and weight in those batteries but what do I know? Thanks for the informative post though.

Anna

I totally agree. The market is flooded with 18650's , they're good enough (the sony VTC5a's come in close enough to these bigger batteries), loads of people have MILLIONS them and devices that take them. Eventually most devices will have adapter's for 18650's so it can use 20/21700 with them. I already have several devices like this. It's just a simple sleeve that cost them pennies and problem solved) The 20700/21700 out performs the 18650 across the board, but NOT enough manufacturers, and like I said the market is FLOODED with 18650's so people with only those battery don't have to worry...they aren't going anywhere for many years. Devices will change to accommodate both, but it will many years due to limited manufacturers and and the ease of just adding an adaptor sleeve until the 18650 is not used anymore.

 

[PAL 702]

Well, just like I won't be trading my Tesla S in just to get one that will fit 21700 batteries, I'm not going to dump my current mods that use soon to be obsolete 18650s. I also doubt I'll limit purchases in the near future to 2000 series batteries only.

However, in the long term there will probably be a move in that direction and that's fine. My charger can accommodate the new size so no added expense there. If only they made proper plastic boxes to store them in like are so common for 18650s we'd be all set.

YES!!! I have so many makeshift 20700 carying cases lol....and wraps...have fun finding wraps. I re-wrap all of my batteries once a year, more if needed, and I have al these new 20700 and am beginning to wonder when somebody will start to make cool carrying cases and wraps for them. Can somebody make some money and get us these things..we will all buy them and you will make some serious cash!!! Got cool wraps for 20700, post a link and I will buy them write now. Got some dope ... carrying cases, post a link and I will buy them write now!!

 

[DaveP]

Right now, the push is smaller dual 18650 mods if the Eleaf Invoke is an indication of trends.

Around the house watching TV or working outside where I can set it down and pick it up I like dual and triple battery mods no matter what the size. If I want stealthy I'm looking for pocket sized mods.

I still used my old 40W istick often. The 2600mah Lipo in it is impressive for vape time and in a pinch I can plug it into USB in a vehicle in a pinch.

OTOH, the more 21700's that are sold, the cheaper they will get.

 

[ScottP]

Just as car makers often make ground breaking design changes to improve the race track performance of their cars involved in various Pro races and then apply those new designs/ideas in their production consumer cars, why does no one seem to think they will find a way to incorporate the new 2x700 technology into smaller form factors such as 18650 batteries?

 

[440BB]

Because they're bigger?

 

[mimöschen]

I don't see 20700 batteries as a technological jump ahead. As expected, they perform better, but at the price of a larger size. Innovation however is doing more with less.

 

[Speigel42]

The only mod I have that takes the new cell size is smaller than all my other mods haha..but still I wouldn't buy a regulated single battery mod just for the voltage drop on the draining cell..as far as internal resistance which determines higher amp run time and "hitting," I think the vtc5a is lower than any ijoy. For the time being I think18650 is better suited for high amp cycles like we use them.

 

[Frenchfry1942]

Heck, AAA, AA, C, and D are still around.

I did move my flashlights to 18650s. Great upgrade.

 

[sonicbomb]

20700s 21700s have pushed things forward by having a better chemistry and using a bigger form factor.
What I'm waiting for a is an advancement that can give us more amps and mAh in a smaller form factor than an 18650.

 

[stols001]

I must agree. We don't need a bigger battery but a more efficient one.... I own a couple single 21700 mods and they're heavy, they feel heavy in comparison to many of my two battery 19650 mods, and I can't imagine carting around two of them in a mod that is required to be made of the lightest material possible so that it can be effectively vaped... Me and that would not be a good combination, I don't think. (I won them and they were given away to vapers that enjoy them). It was an interesting experience, but really not suited to my low wattage needs....

With that said, were I a super sub0hm vaper, I might feel differently about it, but I much doubt that I'll be doing the dual 21700 any time soon. I just don't need it.

Thankfully, batteries of various sorts seem to stick around. I mean, I think I have a triple AAA battery in my external mouse for the moment. The amount of force needed to move it around would likely not result in sufficient "energy savings" to justify replacing it with a 21700 battery mouse... Just sayin'.

Anna

 

[mimöschen]

The specs on your cells seem a bit too high. I think Mooch would be happy to do his own tests to confirm the ratings.

 

[BreSha6869]

I have far too much $$$ invested in 18650 mods to even bother to look at 20700 and/or 21700.

Plus I vape at 50-100w and never get a full day out of dual 18650’s in a mod anyways. Unless a new battery was a REAL 5000mHh+ and 25-30A, I can’t see any advantage.

 

[Robin Becker]

I don't see 20700 batteries as a technological jump ahead. As expected, they perform better, but at the price of a larger size. Innovation however is doing more with less.

Yes and No If you are a manufacturer like Bosch, that use one Li-Ion battery inside a small driller, You can raise capacity and power with the 21700 just with small adjustment in the housing of the device. So you have a big improvement.
When you want to have single cell mod and you vape at 70W-80W, the 21700 can be a big improvement in running time and power.

 

[mimöschen]

Sure. I think 2x700 are great for what they are, but I just don't see the true technological innovation here.
And if we look at the advances Sony/Murata makes with their VTCxA line of batteries, the advantage of the larger 2x700 cells is not so big as some claim it to be.

 

[Violetti Usva]

The fact that the 2x700 batteries most highly regarded are by IJoy is kinda scary to me. I had a zenith for two days before realising that it fires randomly by itself - 3 batteries in series makes it kinda terrifying even if it was regulated between 2.5-6.5V. It even lit up, indicating firing, when there wasn't a mod attached. Trying to trust the company with the most dangerous aspect of vaping - the batteries - when they made that unsafe a mod is a little difficult for me. I hate buying into branding but I know I wouldn't have these doubts if LG/Samsung/Sony were chucking them out.