Ohm Question

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AttyPops

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wouldn't worry about a battery blowing up at 1.8ohms. your kinda miss informing people with this whole blowing up stuff. lots of people use 1.5ohms and up on ego style batts. if you find a battery getting warm then its a warning sign. its not going to spontaneously com-bust lol. no idea why people try and scare others. hes not using sub ohms coils.

It's not an eGo style battery it's a super-mini (I think) :facepalm:
Please read the 1st post again. :facepalm:

I said repeatedly that it MIGHT work. But...it might not.
 

AttyPops

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Well, if it's that one there's other factors too:
1) It's unregulated
Battery Voltage: 3.2V - 4.2V (Unregulated)
thus it's better to plan on average usable voltage of 3.7/3.6 volts and use 2.0 ohm stuff and above. Although 1.8 ohms may work OK, the 1.5 ohm stuff is too hot and 2.0 ohms is more reasonable anyway IMO.
2) That's a fatter battery than a super-mini so may be OK for the amps.
3) You get less vaping time and more stress the lower ohms you go. So I'd stay at or above 2.0 ohms anyway which is the usual recommendation for unregulated batteries due to heat at the atomizer and extending the small battery life. 1.8 probably works but has even shorter life.
 
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Baditude

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i believe hes referring to something like this. eGo 400mAh Mini Battery - EVcigarettes.com

don't see a issue using a 1.8ohm coil.
I found the following caution concerning eGo batteries and using a low resistance atomizer, although the eGo that is listed by the AltSmoke vendor is a 650 mAh battery. I would think a 400 mAh eGo battery would have similar precautions:

"eGo Batteries normally last about 3-4 months when using Standard Resistance Atomizers. Using Low Resistance atomizer on the occasion may cause the switch in the device to stop functioning properly and will void the warranty."

- AltSmoke.com - Authentic Joye eGo or eGo-T 650mAh Battery
 
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AttyPops

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i believe hes referring to something like this. eGo 400mAh Mini Battery - EVcigarettes.com

don't see a issue using a 1.8ohm coil.

You're probably correct, however in my own defense, he didn't say what he replaced his eGo with....only that he replaced it. Could have been:
http://ecigarette [dot] gmc.globalmarket.com/products/details/-lots-206-electronic-cigarette-400mah-e-cig-1761344.html
(I broke the link using the [dot] notation)
which is a cute little e-cig but I don't know much about it.

Anyway, I wish he'd tell us what he purchased.

Also, the lower the ohms, the more you're shooting yourself in the foot with battery life. So it's the stress issue and reduced charge time and reduced lifetime if that's the battery.

Meh.
 

zoiDman

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Now I'm confused. Aglet says more flavor and vapor but it will wear them down quicker but AttyPops says they might blow up on me if I switch from 2.4 to 1.8. I almost afraid to even use them at all

Like ALL things in Life, there is a Limit.

Yes, using a Lower Ohm will Increase the Vapor. And perhaps it will Increase the Flavor.

But you will reach a point where the Ohms are Too Low. And then you e-Liquids will start to taste like this...

SuperStock_1660R-45510.jpg
 

fabricator4

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i believe hes referring to something like this. eGo 400mAh Mini Battery - EVcigarettes.com

don't see a issue using a 1.8ohm coil.

4.2V/1.8ohms is 2.3 amps. Current draw on a fresh battery would be nearly 6C. If it really is unregulated and has no current limiting, I'd be at least a little concerned.

Personally, and with a bottom coil device, I'd prever to stay at or above 2.4 ohms for the coil on that battery.
 
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fabricator4

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Sorry been gone all day. Its the 400mAh ego battery just like the one in the picture. I have a ProTank connected to it. I replaced the atomizer with a 1.8 about 4 hrs ago and it's not gotten hot

It's possibly a 3.4 V regulated battery in that case, you should be fine.
 

fabricator4

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That links says it's unregulated (4.2v -> 3.2 I think it was).

But the link was from someone else, James15 only agreed it *looked* like that one. Up to 10 watts on a Protank 1.8 ohm coil would be tasting quite burnt so I can only assume his version is regulated.
 

BigBen2k

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wouldn't worry about a battery blowing up at 1.8ohms. your kinda miss informing people with this whole blowing up stuff. lots of people use 1.5ohms and up on ego style batts. if you find a battery getting warm then its a warning sign. its not going to spontaneously com-bust lol. no idea why people try and scare others. hes not using sub ohms coils.

This is quite correct.

mAh, a.k.a milli-Ampere*hour, refers to the capacity of a battery to hold power, but it's hardly indicative of what the battery can do. Ex: 1'000 mAh means that the battery can deliver 1'000 milliAmperes for one hour (not that you actually use it that way).

You should keep the same coil, if you want the same experience.

Every battery, regardless of its rated capacity, will have a small voltage drop, as they go from "fully charged" to "time to recharge". This does not change with the capacity; it'll just happen faster with a lower capacity battery.

What's been discussed so far, is that if you use a lower ohm coil, the discharge rate will be faster. Indeed, a lower ohm coil does vape hotter, because it runs hotter. It also draws more amps, which will discharge the battery faster.

Want some math to go with that?

V = R * I
and
P = V * I

Where V= voltage
R=resistance (Ohm)
I=current (Amperes)
P=power (Watts)

With those two equations, you can calculate any electrical circuit, the amps being circulated, and most importantly, how much power you've applying to your e-liquid, as you vape. Given that you have an eGo Twist, you should already know what voltage works for you. An eGo twist maintains the same voltage, regardless of the charge state of the battery. Nice circuit to have, if you have a problem with unsteady power levels as you vape, or if you want more power than what is provided with a standard cell arrangement.

Batteries blow up for several reasons, the main one being damage. The other reason, is by exceeding its rated maximum discharge rate. Max discharge rate is determined by the manufacturer, and is usually expressed as a multiplier of its capacity. i.e. a 10C max discharge rate on a 400 mAh battery, means that it's ok to draw 4 amps from it, until it's discharged.

Exceeding the discharge rate is very rare. Most Lithium-Polimer (LiPo) batteries can handle more than what we put them through. LiFe (Lithium-Iron-nanophosphate) batteries, while a tad heavier, have an even higher discharge rate.

All you need to know otherwise, is that cells should be encased, not out in the open, while using them. A case protects the batteries from damage, and protect you, in an overload situation.

One more thing... batteries are also rated with a lifecycle, i.e. how many times you can recharge them, until they die. Obviously, if you use a lower ohm coil, you'll be recharging that battery more often, and so yes, it will wear out faster.
 
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James15

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Well I used that 400mAh ego battery with my ProTank with a 1.8 atomizer in it and I didn't have any problems. I used it off and on for about 4 hours. The battery never ran down enough so that the power light was blinking. The only difference I could tell is that it produced more vapor and tasted outstanding
 

AttyPops

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For the record, the caution about the battery was before I knew it was an eGo battery (although that link is still unregulated) and it was only one most extreme example of the possible issues. However, you're shooting yourself in the foot IMHO. Depends on how much you vape. 400 mAh is not very much.

Same reason they don't recommend using LR stuff on super-mini's. It's self defeating with small batteries. To each their own. I'd bring a spare.

Since that mod may be unregulated, 2.0 ohms or higher is a better match since it starts at 4.2 volts and follows battery voltage to 3.2 volt cutoff. And the protank likes lower watts as I understand it (but I don't have one, so I'm unsure).

Then there was Fab's 6C remark too (well, 5.75C at fresh charge). May work just fine since it's an intermittent load. But the logic of post 27 is still sound.

EDIT: And the reason it produced more vapor is because it's unregulated.
 
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the rate of the resistance will affect the flavor, the thickness of the vapors, the battery working time
Caution with too low resistance coil, lower resistance means higher electricity current, more vapor, shorter battery working time.
and you might get a burned flavor with it, as the higher electricity current will probablely burn the coil
 
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