AW IMR 16340 vs Ultrafire...

[Trox.Shawn]

I have 6 ultrafire 880mah batteries in preparation for my new toy (P16), but I was looking at the AW IMR 16340 batteries to possibly use in it. My question, however, is are these batteries worth it? I mean they are only rated for 550mah vs the 880mah. Not too mention I am not 100% sure if the lower internal resistance will make all that much difference running at 3.7v with a normal 2ohm 510 atomizer.

 

[Vaporologist]

I am not an expert in this field but here's what I've learned from experience and reading different threads.

I don't own any Ultrafire batts but I do have AW16340 IMR 3.7V batts as well as AW16340 Li-Ion 3.7V. They both work exceptionally well at 3.7V with a standard 510 atty. I don't think you are supposed to notice much or any difference.

However, while using LR atties, IMRs are supposed to last longer (max charges) and be safer because they don't get "stressed" like Li-Ions due to their lower internal resistance.

AW's mah rating is a true rating while other manufacturers may exaggerate. The AW 550 mah may last you as long as 880 mah battery from a different manufacturer.

I hope this helps a little until someone more knowledgeable steps in.

 

[Switched]

I have 6 ultrafire 880mah batteries in preparation for my new toy (P16), but I was looking at the AW IMR 16340 batteries to possibly use in it. My question, however, is are these batteries worth it? I mean they are only rated for 550mah vs the 880mah. Not too mention I am not 100% sure if the lower internal resistance will make all that much difference running at 3.7v with a normal 2ohm 510 atomizer.

For starters the 880 mAh is exagerated. With regards will you notice the difference? You bet! It is a 6 cylinder compared to a 4 cylinder. If you need a more technical explanation I can do that to. But a little light reading might help you along future endeavours and questions

Welcome to Battery University

 

[BrockJ]

The AW IMR 16340's are far superior to anything else I've put in the T1.

The current flow is much higher. The increased vapor production is very noticeable.

It's all I use in the 16340 size batts for right now..

I'm sure they will evolve again in 6 or 8 months.

 

[New_World]

hmmmm....I need to try these IMRs.

will there be a difference with a 510 joye (not LR) at 3.7v compaired to protected aw 14500
any reason to use IMR in this application?

I've read the IMR high drain batts are "safer"

where can I read up on these IMR high drains?
just looking for info on them.

 

[KonaNeil]

hmmmm....I need to try these IMRs.

will there be a difference with a 510 joye (not LR) at 3.7v compaired to protected aw 14500
any reason to use IMR in this application?

I've read the IMR high drain batts are "safer"

where can I read up on these IMR high drains?
just looking for info on them.

Its noticeable on normal impedance atomizers. When you first get your IMRs it feels like you've picked up a firecracker.

When I smoked, I would light up a cigarette and quickly take two hits. When I went to e-cigarettes I figured that a second quick strong puff wasn't possible because the atomizer couldn't absorb enough liquid fast enough. I now realize that it was the lithium battery caving in after the first and needing time to recover. With IMRs I can come back for a second hit.

The only negative I've found is that if I'm not careful, I take too much vapor in and get back a bit of the cough I used to have from tobacco.

If you liked the juice storage of 801s but gave them up for 510s because of the newer attie's intensity, once you get IMRs, you might want to give the pen-styles another try.

You'll find a tiny bit about the IMRs on the flashlight forums. A good place to learn about battery safety, though for the life of me, I can't figure why anyone would turn flashlights into a hobby.

 

[New_World]

Its noticeable on normal impedance atomizers. When you first get your IMRs it feels like you've picked up a firecracker.

When I smoked, I would light up a cigarette and quickly take two hits. When I went to e-cigarettes I figured that a second quick strong puff wasn't possible because the atomizer couldn't absorb enough liquid fast enough. I now realize that it was the lithium battery caving in after the first and needing time to recover. With IMRs I can come back for a second hit.

The only negative I've found is that if I'm not careful, I take too much vapor in and get back a bit of the cough I used to have from tobacco.

If you liked the juice storage of 801s but gave them up for 510s because of the newer attie's intensity, once you get IMRs, you might want to give the pen-styles another try.

You'll find a tiny bit about the IMRs on the flashlight forums. A good place to learn about battery safety, though for the life of me, I can't figure why anyone would turn flashlights into a hobby.

wheres the cheapest place to get these IMRs.
I want to try out a couple.

As for flashlights as a hobby, I think its kind of cool.
I bought a couple flashlights b/c I already have the batts.

 

[BrockJ]

I get the 16340's from lighthound but I've never seen an AW IMR 14500.

 

[Drozd]

I have 6 ultrafire 880mah batteries in preparation for my new toy (P16), but I was looking at the AW IMR 16340 batteries to possibly use in it. My question, however, is are these batteries worth it? I mean they are only rated for 550mah vs the 880mah. Not too mention I am not 100% sure if the lower internal resistance will make all that much difference running at 3.7v with a normal 2ohm 510 atomizer.

it's a trade off really...yeah you'll have shorter runtimes between charges..
but a normal 510 atty at 3.7V has a higher amp draw than the max drain rate of the UF battieries (regular AW 16340s for that matter too)... so you get reduced # of usuable cycles, batteries that can't really provide what the atty wants, and you get an overstressed battery which will affect the overal capacity and life of the battery... but new they're cheaper and will run longer between charges...

figure with a 2.3Ω 510 atty at 3.7V...you're looking at an amp draw of about 1.61A

the maximum drain rate of that UF battery is about 1.32A
maximum drain rate of a AW Li-Ion battery is about 1.5A

both below the amp draw that the atty wants...so overstressed batteries and voltage sag so they just don't hit as well as they could..

now the AW IMR high drain 16340
has a max drain rate of 4.4A...
so it's able to deliver all that the atty is asking of it and then some...vary little stress on the battery as well... so it'll hit harder and last longer overall...

 

[Drozd]

hmmmm....I need to try these IMRs.

will there be a difference with a 510 joye (not LR) at 3.7v compaired to protected aw 14500
any reason to use IMR in this application?

I've read the IMR high drain batts are "safer"

where can I read up on these IMR high drains?
just looking for info on them.

here: Lithium-ion safety concerns

in the section titled Safety level of lithium-ion systems
it covers a portion of how they are safer...

and The high-power lithium-ion
explains the difference in structure of Li-Ion and LiMN

 

[New_World]

here: Lithium-ion safety concerns

in the section titled Safety level of lithium-ion systems
it covers a portion of how they are safer...

and The high-power lithium-ion
explains the difference in structure of Li-Ion and LiMN

thank you for the post.

thanks for posts everyone!

 

[metapuff]

i'm in need of some batteries soon
currently i have trustfire 16340 88mah with pcb

are these better even with no pcb because of safer chemistry and performance?

AW IMR16340 550 mAh IMR CR123 size LiMN Rechargeable Lithium Battery

for use with a superT first gen with the vent holes and lr 510 atties

thanks

 

[Switched]

For replacing what you are currently using, by all means yes. Any battery with a continuous discharge rate of 4C/4A or better for LR attys is always preferred, especially with the smaller batteries, hence why they have come out with a 14500 which is a popular battery for mods (size)

When you get into the big boys 18650, then the IMRs are not really required as the standard LI Ion batt will meet our needs, the longevity is now the important factor e.g:

• IMR 18650 continuous discharge 10C, 1600mAh;
• AW 18650 continuous discharge 5.2C (well within what we need) 2600mAh

Using the rule of thumb of 1-1.5hr/100mAh it is easily seen which battery most prefer.

 

[New_World]

it's a trade off really...yeah you'll have shorter runtimes between charges..
but a normal 510 atty at 3.7V has a higher amp draw than the max drain rate of the UF battieries (regular AW 16340s for that matter too)... so you get reduced # of usuable cycles, batteries that can't really provide what the atty wants, and you get an overstressed battery which will affect the overal capacity and life of the battery... but new they're cheaper and will run longer between charges...

figure with a 2.3Ω 510 atty at 3.7V...you're looking at an amp draw of about 1.61A

the maximum drain rate of that UF battery is about 1.32A
maximum drain rate of a AW Li-Ion battery is about 1.5A

both below the amp draw that the atty wants...so overstressed batteries and voltage sag so they just don't hit as well as they could..

now the AW IMR high drain 16340
has a max drain rate of 4.4A...
so it's able to deliver all that the atty is asking of it and then some...vary little stress on the battery as well... so it'll hit harder and last longer overall...

so you would reccomend the aw IMR 16340 for the precise over the protected 16340 aw using a regular joye510 atty (non-lr atty)

 

[Drozd]

so you would reccomend the aw IMR 16340 for the precise over the protected 16340 aw using a regular joye510 atty (non-lr atty)

yes I would...

 

[redrhino]

Drozd what would be your recommendation for the 18650 Precise....I only Vape 6 and 7.4 Volts using HV 510 Atty w/ 4.5 Resistance....Assuming these batts fit in the P18... Would you recommend the AW IMR 16340 at 3.7 volts each stacked for a 7.4 Vape? or would you recommend the AW RCR 123A protected at 3.7 Volts each stacked for a 7.4 Volt vape?

 

[Drozd]

Drozd what would be your recommendation for the 18650 Precise....I only Vape 6 and 7.4 Volts using HV 510 Atty w/ 4.5 Resistance....Assuming these batts fit in the P18... Would you recommend the AW IMR 16340 at 3.7 volts each stacked for a 7.4 Vape? or would you recommend the AW RCR 123A protected at 3.7 Volts each stacked for a 7.4 Volt vape?

I'd use the IMR stacked...well depending on which atty you're using..
at 7.4V even with a 4.5Ω HR atty you're looking at an amp draw around 1.64A...
the max drain on the regular protected Li-Ion AW 16340 is still 1.5A apiece...so you're overstressing them and now you're adding the fact that they're stacked...

 

[redrhino]

Thank you Drozd.

 

[5cardstud]

I use both kinds and from what I've found the ultrafire and trustfire last longer and I get the same voltage. The only thing I can say about the highdrains is they cost twice as much and last half as long. Oh and they're prettier than the fires.

 

[VaporMadness]

I ran some quick tests with the AW IMR (LiMN) vs the AW ICR (regular Li-ion) 16340 batts under different loads. Both batts were fully charged and reading 4.17v unloaded when I started, and reading just a little lower, 4.15v, by the time I was done. I put 3 different loads across each batt for a moment and measured the voltage while loaded. Here's what I got...

Li-ion (AW ICR-16340 750mAh, Protected, max discharge rate 1.5 amps)

3.3 ohm --> 3.85v (1.16 amps, 4.5 watts)
2.5 ohm --> 3.75v (1.50 amps, 5.6 watts)
2.0 ohm --> 3.68v (1.84 amps, 6.8 watts)

LiMN (AW IMR-16340 550mAh, High Drain, max discharge rate 4.5 amps)

3.3 ohm --> 3.85v (1.16 amps, 4.5 watts)
2.5 ohm --> 3.85v (1.54 amps, 5.9 watts)
2.0 ohm --> 3.80v (1.9 amps, 7.2 watts)

The ICR sags more under load (as it passes its max drain rate) than the amp happy IMR, which is pretty much what you'd expect.