Sorry if this question has been asked but I did some searches and couldnt find the answer, anyway, I kind of understand (I think!) if you like the way a "tank" vapes with a 2.0ohm coil and 3.0 volts, then you should be able to get the same results with a 2.5 ohm coil and 4.0 volts using the same "tank" system (the numbers are just for referance), if that is the case and you have adjustable voltage, what is the advantage or disadvantage of using high or low ohm coils?? Thanks in advance!!!!!
Newbie question about coil ohms vs. volts
- Thread starter prophet5150
- Start date
- th_trl_thread_readers 0
- Status
Lower resistance coils allow the battery to push more power (watts) to the coil resulting in shorter battery life before you need to recharge.
Here's a simple chart you can use to help determine the sweet spot.
Here's a simple chart you can use to help determine the sweet spot.
Using the above chart, you'll see that a LR coil is limited to a smaller useful range of voltages (green blocks) that you can use with your VV mod.
A higher resistance coil has a wider range of voltages you can use, and will use less power from the battery.
No! It would be like 3.4 volts. Look on the net for a olms caluctor. or some other poster will add a link to a vape chart.
Last edited:
I agree with what the others here have said, but I want to point out that your number are off in the above.
2 ohm @ 3V = 4.5 watts
2.5 ohm @ 4v = 6.4 watts
To get an (almost) equivalent 4.5 watts with a 2.5 ohm coil you'd need to set to 3.4 volts
2.5 ohm @ 3.4v = 4.6 watts
Here is a calculator. Just enter volts and resistance, leave the other fields blank. It will calculate the power (watts) for you. Voltage current resistance and electric power general basic electrical formulas calculations calculator formula of watts general electrical pie chart electricity calculation - electrical voltage power formula equation general ohms law audio physics e
Thanks for the replies!!! I think I found the info I was looking for. like I said in my post that the numbers were just for referance, to kind of point out what I was getting at. So in short if I can get the results (vapor & flavor) that I like with a high ohm coil I should get a longer time between recharges, right??
depends on the device, but in theory, yes a higher resistance uses less amperage lowering battery stress.
only problem is most regulated devices have to take more current from a dying battery and up convert that to the voltage you have set, losing some in the process.
only problem is most regulated devices have to take more current from a dying battery and up convert that to the voltage you have set, losing some in the process.
I found this blog post on the subject: http://www.e-cigarette-forum.com/fo...ow-resistance-high-resistance-efficiency.html
I've read through explanations like these before and kind of come to the conclusion that it doesn't really make that much difference, at least not in a predictable way. I (sort of) understand what he's saying in the blog about efficiency losses, but I wouldn't have a clue how to apply that to determining efficiency losses in my devices. I just keep batteries charged and don't worry about it. LOL.
I've read through explanations like these before and kind of come to the conclusion that it doesn't really make that much difference, at least not in a predictable way. I (sort of) understand what he's saying in the blog about efficiency losses, but I wouldn't have a clue how to apply that to determining efficiency losses in my devices. I just keep batteries charged and don't worry about it. LOL.
Im glad you brought that point up,I was just thinking/wondering about how that affected, for example, a 3.7v battery making say 4.5v.
- Status
Similar threads
- Locked
- Locked
