Quick Question about ohms, watts & volts.

[PoorWhiteGuy]

So for Christmas my girlfriend is going to buy me a nautilus mini and either an iStick or MVP 2.0. Now when I look at coils for the nautilus mini I find they come in 1.6 or 1.8 ohm. When looking at charts online you wouldn't want to take a 1.6 or 1.8 ohm past ~3.75 volts, according to these charts I've been looking at you may fry the juices or coil. So that would make the iStick or MPV obsolete because they can go up to 5 volts, but you can't use that with these coils. I'm sure I'm wrong, but that is why I'm asking. Also, the iStick can go up to 20 watts, but with a 1.6 or 1.8 ohm coil that wouldn't be an ideal setting. I'm basing all of this information just from looking at different charts people have made specifically for vaping. From what I can see you would need a 3 ohm coil to utilize the 5 volts these mods can go up to. To be honest the watts part I don't even understand because on none of these charts from what I can see ideal vaping setting are no where near even 10 watts.

I'm an idiot please explain why or how you can crank up the watts to 10 + and it's not frying the coil or juices.

 

[Sgt.Rock]

Howdy,

The charts are all pretty much outdated for the newer gear out there today.

Best thing is to start at 4 volts with either of those coils and adjust to taste from there...

You may find as other have that the BVC coils sweet spot is between 8 and 10 watts.

Your mileage may vary

Enjoy!

 

[chargingcharlie]

The 1.8 Ohm bvc will handle 5V and the 2.1 Ohm bvc will handle 6V. http://www.aspirecig.com/news/news182.html

Amps is the current being used (Volts / Ohms)
Watts is the total power used (Volts x Amps = Watts)

So a 1.8 Ohm coil fired at 5V would have a current of 2.77A and a power output of 13.85W


Sent from my iPad using Tapatalk

 

[The Ocelot]

So for Christmas my girlfriend is going to buy me a nautilus mini and either an iStick or MVP 2.0. Now when I look at coils for the nautilus mini I find they come in 1.6 or 1.8 ohm. When looking at charts online you wouldn't want to take a 1.6 or 1.8 ohm past ~3.75 volts, according to these charts I've been looking at you may fry the juices or coil. So that would make the iStick or MPV obsolete because they can go up to 5 volts, but you can't use that with these coils. I'm sure I'm wrong, but that is why I'm asking. Also, the iStick can go up to 20 watts, but with a 1.6 or 1.8 ohm coil that wouldn't be an ideal setting. I'm basing all of this information just from looking at different charts people have made specifically for vaping. From what I can see you would need a 3 ohm coil to utilize the 5 volts these mods can go up to. To be honest the watts part I don't even understand because on none of these charts from what I can see ideal vaping setting are no where near even 10 watts.

"...please explain why or how you can crank up the watts to 10 + and it's not frying the coil or juices.

The online charts you see posted aren't carved in stone. The numbers are a guide to give you a starting point from which you can power up or down until it tastes good to you.

3.75v with a 1.6Ω coil will produce ≈ 8.8 watts; 3.75v with a 1.8Ω coil will produce ≈ 7.8 watts. The MVP would be fine with either. I'm not familiar with the specs of the iStick, but I doubt it would have a problem.

Vaping by taste, rather than numbers is important.* You may have one juice that really blooms at higher wattage and another that tastes awful over 7 watts. At the moment I'm vaping with a 1.7Ω coil in a Diver V2. I can power it up to 20 watts, but it tastes awful - not burned, it will work fine at that setting, but the juice is more flavorful at lower watts.


*Numbers become more important should you decide to get into RBAs and/or use <1Ω coils, since you need to know if your battery can handle the amp draw.

 

[PoorWhiteGuy]

Thanks for the responses.

All the charts I was looking at online led me to believe to even utilize anything above 3.7V I would need 2.5 ohm coils or higher which kind of worried me. I'm excited to step up to a battery where I can control the wattage and voltage, I just want to know what I'm doing with it so I don't end up burning out coils or ending up with a terrible vaping experience.

 

[edyle]

Thanks for the responses.

All the charts I was looking at online led me to believe to even utilize anything above 3.7V I would need 2.5 ohm coils or higher which kind of worried me. I'm excited to step up to a battery where I can control the wattage and voltage, I just want to know what I'm doing with it so I don't end up burning out coils or ending up with a terrible vaping experience.

As mentioned before; those charts were made in the days when it was just single coils; now there are dual coils; the 1.8 ohm dual coil you mentioned is actually two 3.6 ohm coils in parallel; if you look at the chart but use the 3.6 ohm value instead, it would make more sense.

Start at low voltage and adjust upwards slowly; you'll sense from taste whether the voltage/wattage is too high long before it gets bad enough to burn out a coil.

 

[Wolfenstark]

I use to read those charts but in my world they didn't correlate.

The nautilus at 1.8Ω i used to vape at 4 - 4.3 V

 

[DavidOck]

To add to the above...

The charts were made for single coil toppers with limited air flow, on fixed voltage batteries. Many of the products today have dual coils, adjustable air flow, and VV/VW capabilities. But if you start at a low setting and work up to taste, you're fine. If you start too high, you may indeed burn the wick (depending on material of the wick) or the juice in the topper, requiring a tear-down to replace the coil / wick, and dumping the juice, since all that's still in it will have that burned taste.

Neither of the batteries you mention is "obsolete." (Although there is an MVP3 in the pipeline.) They both work well, provide good adjustment and information, although the IStick does use a type of voltage regulation that effectively makes it run "hot" - so for example, 8 watts on it might vape the same as 6 watts on the MVP.

 

[eyerhere]

Throw out the chat and get the Istick. You will be glad you did.