Flat tops... You have failed me.

[nerak]

Check RTD vapors and use Promo code ECF5 for a 5% discount. The site is down ATM pulling Maintenance. Shouldn't be long before they're back up. You might want a few battery cases too .... I picked up four of them.
Eta Karen got me. Is the discount the same on Reo site or just goes to RTD

Robert does not sell batteries, he does link to RTD.

 

[bunker0617]

I melted my first button this week oh well thank goodness robs design is very easy to self repair. Back up and going in less than four minutes...

 

[zmauls]

I melted my first button this week oh well thank goodness robs design is very easy to self repair. Back up and going in less than four minutes...

What excellence! What excellence, indeed!

 

[Tony Spectacular]

If mAh is mille-Amps/hour, then how could a 1600 mAh deliver more punch than a 2900 mAh, if both are listed at 3.7v?

That's the confusion. It's not milliAmps per hour, it's milliAmp hours. So it's not a designation of how much amperage you are getting per a specific period of time, it's how many hours the battery should last. This designation is not really all that important for us, since a vast majority of those mAhs fall in the useless capacity of the battery where it's firing below 3.6 V. It's a little more relevant when using regulated vv/vw mods, but for us it's all but meaningless. The C rating of a battery tells you how many amps it can push, and is much more important on an unregulated mod than the flashy mAh rating.

 

[steel bender]

AW IMR

18650 2000mah 10Amp CDR
18650 1600mah 24A
18490 (1100mah) 16.5A
18350 ​(700mah) 6A
MNKE IMR

18650 1500mah ​20A
Panasonic ​or Orbtronic hybrid

CGR18650CH (IMR/hybrid) 2250mAh 10A
NCR18650PF (LiNiCOMnO2) INR/ICR/IMR Hybrid 2900mAh 10A
NCR18650PD (LiNiCoAl) 2900mAh 10A
Orbtronic 18650 SX22 (hybrid) 2000mAh 22A
Sanyo

UR18650EX 2000mAh 20A
Samsung hybrid (LiNiCoMnP)

INR18650-22P 2200mAh 10A
INR18650-20R 2000mah 22A
Sony hybrid

us18650v3 IMR 2250mAh 10A
us18650vct3 1600mAh 30A
us18650vtc4 2100 mAh 30A
EH IMR

18650 2000 mAh 16A
18650 1500 mAh 22A
18500 1100 mAh 8.8A
18350 800 mAh 6.4A
Efest IMR

18650 (IMR/hybrid) 2250mAh 10A
18650 2000mAh 10A
18650 1600mAh 30A
18490 1100mah 8.8A
18350 800mah 6.4A
.
The aw imrs put out more amps than your pannys. They also give a more even drain ie a more even vape to the end with a faster drop at the end of their charge. Besides the fact the Reo is intended to be used with the AW IMR batts so why not

Hmmm, well here's a question. You have the efest 2000mah imr battery listed for 16A. But how can that be? My efest 2000 mah button tops are listed as having 10CR. So doesn't that mean 2000mah x 10C / 1000 = 20A ?

 

[steel bender]

Mah is how long it will last nothing more. Amps delivered to the atty is what really matters.

Something doesn't seem right here to me and I'm wondering if I have picked up wrong information. Though I don't think so. Your batteries mah rating does affect how many amps it can put out. I'm looking at picking up some efest 18350 batts soon. Wanting to know the amps, I did a little math. They are listed as having 800 mah and 8 CR, so 800mah x 8CR / 1000 = 6.4A, which matches up with what you have in your list. No idea why the 18650 2000mah doesn't match up though.

So, yes higher mahs will lead to higher amps, except that some or most batts have a much higher CR rating at 1600 mah than the 2000 mah does, which ends up giving you the higher amp rating.

 

[Justice]

Something doesn't seem right here to me and I'm wondering if I have picked up wrong information. Though I don't think so. Your batteries mah rating does affect how many amps it can put out. I'm looking at picking up some efest 18350 batts soon. Wanting to know the amps, I did a little math. They are listed as having 800 mah and 8 CR, so 800mah x 8CR / 1000 = 6.4A, which matches up with what you have in your list. No idea why the 18650 2000mah doesn't match up though.

So, yes higher mahs will lead to higher amps, except that some or most batts have a much higher CR rating at 1600 mah than the 2000 mah does, which ends up giving you the higher amp rating.

No a lot has to do with the efficiency of the batteries internals you can buy what appears to be the same size batt for your car but the cold crank amps can be very different it has to do with how many the batt can put out different materials can do different things

 

[pdib]

So, the more storage capacity you try to cram into a given size of battery, the less room there is to move around in there. Usually (until recently) the higher mAh batteries had lower C ratings. Less elbow room = more internal resistance. Now we're seeing some new chemistry that is breaking that barrier. I have 2000mAh batteries, now, that are rated at 22Amps.

 

[Justice]

So, the more storage capacity you try to cram into a given size of battery, the less room there is to move around in there. Usually (until recently) the higher mAh batteries had lower C ratings. Less elbow room = more internal resistance. Now we're seeing some new chemistry that is breaking that barrier. I have 2000mAh batteries, now, that are rated at 22Amps.

From my understanding thats a good way of putting it

 

[Filthy-Beast]

You need both ratings to truly know what the battery can do. For any given chemistry or battery design there is trade off as the mah increases the c rating drops. You need both numbers to know the continuous amp ratting of a battery. This is important since with low ohm coils we pull lots of amps from the battery.

Most consumer and thus marketers key on mah because when powering the typical low amp device that never goes above an amp or 2 of load all you really care about is mah.

Use an ohm law calculator to double check that the coils you build will be supported by your battery with a safety margin. I use the 80% rule typically used when sizing electrical circuits.

So an AW IMR 18650 can handle 10A, I don't want to build a coil that would pull more than 8A, using the calculator that means no coils below .525 ohms.

But when using an AW IMR 18650 1600mah with its 24A max = 19.2A at 80% load. so no coil below .212 ohms.

 

[pdib]

ok.




no going below .212Ω.





scouts honor.

 

[X-Puppy]

ok.

no going below .212Ω.

scouts honor.

LOL

I like the less technical version I saw you guys post before:
The higher mah the more krakie you have packed in there tight causing internal resistance that slows the discharge/Amp output.

I like to think of the hybrids as having 1/2 and 1/2 - some tightly packed krakie along with some looser krakie that still lets the charge out quicker - then it gets recharged by the tightly packed krakie before the next pull.

.212Ω really is funny because it isn't happening with the stock firing pin and drop spring, and the 30 amp bad boy flat top batteries are no use until new contacts get released. (maybe)

 

[Raynman]

So, yes higher mahs will lead to higher amps, except that some or most batts have a much higher CR rating at 1600 mah than the 2000 mah does, which ends up giving you the higher amp rating.

If such is the case then tell me why the AW 18650 1600 mah puts out 24 whereas the AW 18650 2000 only puts out 10? I reiterate mah only says how long the battery will last. Check the posts above and below your post explaining internal resistance.

 

[Filthy-Beast]

I personally don't go much below .7, but I did the calculations on it because I have many friends who are EMTs and the stupidity they see on a daily basis is astounding. This week there will be many cases of frozen turkeys dropped into hot oil.

 

[steel bender]

If such is the case then tell me why the AW 18650 1600 mah puts out 24 whereas the AW 18650 2000 only puts out 10? I reiterate mah only says how long the battery will last. Check the posts above and below your post explaining internal resistance.

Ok, so here it is. Looking at rtdvapor.com's info for AW IMR 18650 2000mah and 1600mah.

The 2000 mah batt is listed as having a max continuous discharge rate of 10A - just like you said, only here they or someone else has done the testing or math for you. If I reverse the formula, 10A x 1000 / 2000mah = a C rating of only 5.

The 1600 mah batt has a max continuous discharge rate of 15C. This means we have to do a little math.
1600 x 15 / 1000 = 24A, again just like you stated.

So this is what it means. The C rating is very important but so is the mahs. The two work together in the same formula to figure out the amp rating for your battery. The 1600mah batt has a higher amp rating because it has triple the C rating, while only sacrificing 20% of its mahs.

In theory, if you had two batts with the same C rating and the same size, but one has more mahs, then the batt with the higher mah will have the higher amp rating. In real life, it would most likely only mean that the company selling the battery same size, same C rating, with higher mahs, is exaggerating and trying to get you to believe that he was able to cram more stuff into his batt than the other guy.

I don't think I'm any kind of an expert and definitely still new to this, learning every day, so if I'm wrong, please let me know.

 

[supertrunker]

So the mAh is how much your bucket holds and the C rating is how big the hole in it is?

T

 

[MamaTried]

i'm prolly just re-phrasing what was said before but maH tells you how big your bucket is. C tells you the max size of the hole in your bucket. it's that simple.


pretend i said bladder instead of bucket after you've drank a ton of beer. mebbe that'll help. ..


ETA: lol. Mr. T beat me to it

 

[steel bender]

omg, it's a bucket with a hole.....LIGHT BULB!!!!!

 

[pdib]

is ↑ he ...... now? . . . . . . .

 

[pdib]

What if I said, mAh = bucket, and C rating is how high up the side of the bucket the hole is . . . . . . ?


does that work?

I think so, for mech. vaping and swapping batteries at 3.7V



Nah, not really. It works for flow rate, but not for how far you can discharge your battery . . . .