OHMs? help please!
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You can get Boge soft cap at LiteCigUSA for $8 for box of 5 and only $2 shipping. 10% off today, but forget the code. it is another post.
He carries both standard resistance and LR Boge cartos. If you have the eGO I would go for the LR personally. Not sure of the ohms on the standard, my guess is 3.0, perhaps 3.5.
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What all this is doing is using the battery - atty combination to change the power of the device, thus changing the power of the vaporization of the juice. It is simple ohms law, dealing with voltage (V), resistance (R) (the symbol for ohms is Ω), current in amps (I), and power in watts (P). Ohms law states V=I*R, so manipulating it you get I=V/R. Power law is P=I*V, so, knowing the voltage and resistance you can determine the power in watts the atomizer is generating, P=(V/R)*V, or P=(V^2)/R.
Power is what you will feel and taste as it vaporizes the juice, just as with a light bulb power is what you see when you turn on a light. You can tell the difference between a 100 watt light bulb and a 40 watt light bulb, as you can tell the difference between a 3 watt vape and a 12 watt vape. Many swear by the 3.7V battery on 1.5 2.0 Ω atty. Doing the math gives you between 6.84 and 9.13 watts. Many like the 5V battery on a 3.0 Ω atty, giving you around 8.33 watts. You can't use a LR (low resistance) atty on high voltage devices because they just cannot take the power, 6V on a 1.5 Ω atty is 24 watts, the atty will burn up.
You also have to remember, the more amps (I) you use the less time you get out of your battery which are rated at mAh (milliamp hours). I don't know the mAh ratings of the Joye 510 or Ego, but generally the smaller the size of the battery, the less mAh it can deliver.
I use a large battery (18650 - 18mm diameter, 65 mm long, the last 0 is for round) that delivers 2600 mAh in my box mod, and it lasts me a couple days. Since I am using a 2.0 Ω atty and it is a 3.7V battery, it runs at (nominally) 1.85 amps, or 1850 mA, thus giving me (2600/1850=1.40) 1.40 hours of on time, and 1.4 hours is a lot of vaping when a drag is about 3-7 seconds. That works out to about 720 to 1680 drags.
Another thing you have to realize is the battery power (unless regulated) is going to change over the charge of the battery, and this is a large factor in vaping. A 6.0V battery will charge to around 6.5V, and drain to around 5.0V the power on a 3 Ω atty will change from 14 watts to 8.33 watts, At the same time, a 3.7V battery will charge to around 4.2V and drain to around 3.2V, changing the power on a 1.5 Ω atty from 11.76 watts to 8.17 watts, or on a 2.0 Ω atty from 8.82 watts to 5.12 watts.
That perfect juice on a fresh charge may be weak as the battery looses it charge, and the perfect juice at a low charge may be harsh or flavorless at full charge. The trick is to find the happy medium.
Variable voltage devices allow you to find the sweet spot no matter the juice or atty, I want one myself.
Hope this helps and isn't too confusing,
Jag
Power is what you will feel and taste as it vaporizes the juice, just as with a light bulb power is what you see when you turn on a light. You can tell the difference between a 100 watt light bulb and a 40 watt light bulb, as you can tell the difference between a 3 watt vape and a 12 watt vape. Many swear by the 3.7V battery on 1.5 2.0 Ω atty. Doing the math gives you between 6.84 and 9.13 watts. Many like the 5V battery on a 3.0 Ω atty, giving you around 8.33 watts. You can't use a LR (low resistance) atty on high voltage devices because they just cannot take the power, 6V on a 1.5 Ω atty is 24 watts, the atty will burn up.
You also have to remember, the more amps (I) you use the less time you get out of your battery which are rated at mAh (milliamp hours). I don't know the mAh ratings of the Joye 510 or Ego, but generally the smaller the size of the battery, the less mAh it can deliver.
I use a large battery (18650 - 18mm diameter, 65 mm long, the last 0 is for round) that delivers 2600 mAh in my box mod, and it lasts me a couple days. Since I am using a 2.0 Ω atty and it is a 3.7V battery, it runs at (nominally) 1.85 amps, or 1850 mA, thus giving me (2600/1850=1.40) 1.40 hours of on time, and 1.4 hours is a lot of vaping when a drag is about 3-7 seconds. That works out to about 720 to 1680 drags.
Another thing you have to realize is the battery power (unless regulated) is going to change over the charge of the battery, and this is a large factor in vaping. A 6.0V battery will charge to around 6.5V, and drain to around 5.0V the power on a 3 Ω atty will change from 14 watts to 8.33 watts, At the same time, a 3.7V battery will charge to around 4.2V and drain to around 3.2V, changing the power on a 1.5 Ω atty from 11.76 watts to 8.17 watts, or on a 2.0 Ω atty from 8.82 watts to 5.12 watts.
That perfect juice on a fresh charge may be weak as the battery looses it charge, and the perfect juice at a low charge may be harsh or flavorless at full charge. The trick is to find the happy medium.
Variable voltage devices allow you to find the sweet spot no matter the juice or atty, I want one myself.
Hope this helps and isn't too confusing,
Jag
Um... Jonnyvap amd Doc. At that link for the 2 Ohm cartos is says "not to be used with eGo". ??? Is that just a warning and not necissarily true?
"Do not use with voltages over 3.7 volts. Not for use on eGo, vGo, 016, regular 510 batteries or other mosfet driven batteries or passthroughs. "
If that wasn't enough, more Ohms for ya.....
View attachment 23998
Ohmmmmmmmm............. lol.
Also, ohms, as noted above, is a measure of resistance (like how much a valve is CLOSED). So the higher the ohms, the less electricity gets through.
See also http://www.e-cigarette-forum.com/forum/madvapes/127262-about-low-resistance-specific-batteries.html for cautions about LR atties on some batteries/power-supplies.
Thanks Attypops! Excelent info on that thread for anybody wanting to know!!!
Thanks Jag! At first I was getting a little dizzy, but it actually made sense as I kept going. Good info!
And thanks again to all!! I'm actually very satisfied with my 510. Mainly going to eGo for batt life. (And due to black friday sale
I have 2-3 boxes of what I think I know now are thr standard Boge 3 ohms. I'll start off with them on my eGo and go from there.
Pizza, My Tornado came with 2 ohm attys which actually measure 1.9 ohms. The tornado and eGo batteries are the same. They are actually 3.4volt batteries and they last 8hrs + on the 1.9 ohm atty. 2.5 ohms would be more suited for 3.4v. I have used 1.5 ohms but really tax the battery. So, 2 ohms is fine.
That sounds perfect Breaktru! I can't wait for 8+ hours!!! I'll probably try the 2.5 to get even more. Do you, or anybody, know if/where I can get 2.5 ohm cartos with soft caps? Boges?
Thanks!
Thanks!
That's a nice chart Cardinal! Been playing with a similar spreadsheet myself but that one sums it up well.
You need to zero out your meter and subtract from the reading. The leads and connections may be causing it to read higher than what it is. You do this by touching the leads together and reading the meter. If you see the leads reading .3 ohms, you subtract the .3 from what you have, getting 1.5-1.6.
Ohm meters are typically used for reading in the 100s, 1000s, and 1,000,000s ohm range. Using a meter to measure tenths of an ohm can be difficult, but if you follow the directions above it should work fine.
Jag
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