Going to purchase a Reo

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pdib

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The difference is that they are not safe to use. IMR batteries have safe chemistry that will not explode.

I use AW IMR 18490 in my Mini 2.1 and Panasonic 18650 CH and PD in my Grand, both Panas are also safe to use.

Hey, Blix. I've been wondering about that. I don't know enough about the Panny chemistries. Are they considered safe because of the use of nickel? Is that more stable than cobalt alone? Just fishing, cause I'm curious.
 

LibertariaNate

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Thanks for the warm welcome and helpful responses.

Extra bottles, tubes and springs... Even one of those "sissy" buttons that Supe dislikes. Check...

I'm good on batteries (AW IMRs), juice (I DIY), rebuildable supplies, and the like, but thank you for the reminder. It wouldn't hurt to add some more batts to the rotation or make some juice. :D

This is neither my first mod, nor my first foray into rebuildable territory. For the last year and few months I've been using a Zen standard pretty much daily. I recently picked up some rebuildable drippers and while they gave a decent vape I was looking for that little something extra. That's when I stumbled across Supe's micro coil thread and all I can say is, "I'm hooked." However, dripping while driving isn't the sanest of activities so I hope to remedy that with my next purchase.

Don't get me wrong, I still love and plan on using my genny atomizers. I just want to add another high quality tool to my vaping arsenal. Thanks again for all of your input and pointing me in the right direction.

If only I could decide on a color...
 

Blix

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Some Efest batteries are IMR and are therefore safe.

Whether they are ideal or appropriate for a REO is another matter...

He didn't state they were the IMR's, so I went with the info I had. :) But yes, the Efest are supposed to be good.

Hey, Blix. I've been wondering about that. I don't know enough about the Panny chemistries. Are they considered safe because of the use of nickel? Is that more stable than cobalt alone? Just fishing, cause I'm curious.

As far as I've found, the Panas have "hybrid" chemistry with the CH being pretty much an IMR and the PD have an extra safety layer to prevent it from heating up, even with a short.

Some info on them here:

http://industrial.panasonic.com/www-data/pdf2/ACI4000/ACI4000CE17.pdf
 

Dturp

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Ok sorry we hijacked the thread with this. I have that tropical green reo grand going to be headed my way this week and don't want to wait to start using it lol. I have some Efest 18650's that do say IMR so are they safe or should I just order the AW ones? I don't mind ordering the other ones but need to do it asap if I want them to get delivered while I'm at home. Otherwise it'll be a few weeks before I get back home to get them.
 

NicoHolic

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I'm using a 0.5Ω micro coil with 2000 mAH 18650 AW IMR batteries, well below their 10A current rating (measure the coil voltage under load before calculating the power and current of a coil). I number and rotate 3 now, but may add a fourth with my second Grand. The guys using the 1600 mAH report flatter discharge and more kick, but I focused on capacity when I got my first Grand. I may get a couple of 1600s just for testing (with 3 more RM2s), but will probably go back to 0.7 - 0.9 Ω for daily use.

I started out with a powder coated silver vein, but am hesitant to do anything that might mar the finish (pocket carry, fishing on gravel beds, dropping on concrete, etc). So I'm getting a tumbled raw aluminum for day to day use I can distress without worrying about it.
 
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dhomes

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From my experience with my mech mods & provari the panasonic CGR18650ch are superior in performance, and last longer, than the AW

I don't have my reo here yet (it's on its way, thank rob btw), but with the REO being a mechanical mod the only issue you may encounter is that they are flat top

there are quite a few ways to go around that

on the other hand, I also have some EH that do not hold they charge after 3 months of use

Also have some AW 18500 around, but Panasonic is all I use for now
 

Justice

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From my experience with my mech mods & provari the panasonic CGR18650ch are superior in performance, and last longer, than the AW

I don't have my reo here yet (it's on its way, thank rob btw), but with the REO being a mechanical mod the only issue you may encounter is that they are flat top

there are quite a few ways to go around that

on the other hand, I also have some EH that do not hold they charge after 3 months of use

Also have some AW 18500 around, but Panasonic is all I use for now

The aw 18500 are not the same beast as the aw imr 18490 I had some and first off the compress the spring too much for safety use
 

dhomes

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Uhhh... whoops..

I can't find where I read that, if I did.. 16a would definitely be way more than I need. 24a would be crazy, I can't imagine vaping almost 100w from a battery.

whoops, I have some sony 30A coming along...

But guys, you are talking about amp LIMIT, that's the maximum you can push a given battery. it does not mean that the battery is ALWAYS handling such current.

This would be a concern if you keep doing .5 & below coils

anyone using, say, a .6 ohm coil, IF on fresh battery and having ONLY a .2 voltage drop (say, your device delivers 4 volts to the atty):

from:
Ohm's Law Calculator

.6 omhs @ 4 volts gives you 6.6 amps
.5 is 8 amps
.4 -> 10 amps!!!

I'm fine with .7 ohms and above. I have done the .4 a couple of times, but honestly, other like burning juice by the gallon / puff and extra vapor I don't see that much of a difference in flavor, at least not any difference worth the risk

edit: am i missing something on how batts operate?
 

ChrisEU

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Well, yes, I think you are missing a couple of points. The C rating of a battery actually does denominate the "maximum consistent discharge rate", not the "maximum peak discharge rate" - this is a bit higher, usually, for discharges of a couple seconds with pauses in between.

The batteries themselves have differing voltage stability. When I take a fully charged Panasonic ..CH and a Samsung 20R (or AW IMR or similar), all fully charged, and I use them in the same mod with the same atomizer coil of, say, 0.8 ohms, I will see different voltages reaching the coil. The Panasonic might be around 3.8V, the AW IMR might push 4, the Samsung is around there, too, maybe a tad higher.

If the battery is not new, the values will be worse (Li Ion batteries age from the second they are manufactured and charge cycles add to the age)

The "voltage drop" is a sum of the drop the battery itself causes because of it's inner resistance plus the drop because of resistances inside the mod.

Just stay with the AW IMR 1600. There are reasons for it.
 

dhomes

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Well, yes, I think you are missing a couple of points. The C rating of a battery actually does denominate the "maximum consistent discharge rate", not the "maximum peak discharge rate" - this is a bit higher, usually, for discharges of a couple seconds with pauses in between.

The batteries themselves have differing voltage stability. When I take a fully charged Panasonic ..CH and a Samsung 20R (or AW IMR or similar), all fully charged, and I use them in the same mod with the same atomizer coil of, say, 0.8 ohms, I will see different voltages reaching the coil. The Panasonic might be around 3.8V, the AW IMR might push 4, the Samsung is around there, too, maybe a tad higher.

If the battery is not new, the values will be worse (Li Ion batteries age from the second they are manufactured and charge cycles add to the age)

The "voltage drop" is a sum of the drop the battery itself causes because of it's inner resistance plus the drop because of resistances inside the mod.

Just stay with the AW IMR 1600. There are reasons for it.

Thanks for the info.

My experience with AW was based on the 10A ones, I didn't know until this point that the 1600 have a higher number

That said, even at .4 or .5 ohm I have yet to get one of the Panasonic to get even kind of warm

Also, aren't AWs supposed to be Panasonic cells?

not trying to sound like a smart *ss, there is a lot I don't know about batteries and I just base my experience between 10A batteries.
 

ChrisEU

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There are a lot of battery threads already - no need to add another, and there are better specialist engineers out there than me. The language doesn't really help, either, I can explain it better in German.

I just usually jump into the REO threads when I see someone heading in the wrong direction with battery info - I don't want my fellow REOnuts to have a subpar experience.
 
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