still confused with ohms

[jerseyman32]

Currently i use the following...kanger ipow 2 1600,evod vv 1600, spinner twist 1600, and evod 650 for batteries. I know that for my 650 i use 1.8 kanger single coils which work well for me, but im totally still lost when it comes to which dual coils are the best for my batteries..should i use the 1.8 or the 1.5 i know you have to multiply the ohms by 2 to find resistance and some other math, any help plz

 

[MattyTny]

http://www.e-cigarette-forum.com/forum/blogs/baditude/6293-14-ohms-law-dummies-vapers.html

This blog post should answer some questions.

 

[Norrin]

No you don't multiply anything. They are sold as 1.8 ohm coils so they have 2 3,6ohm coils making a total of 1.8 ohms. As to which is better, it all depends so you just have to try them. Some juices work better with certain coils though so it's not always that easy to work out the best combo.

 

[jerseyman32]

The part the confuses me is this.. All my batteries are 4.8 volts at the max, should they produce enough power to run the coils properly also how do watts play into this,my ipow is a 15 watt vw so can i push more power to the coils than i can with a regular 4.8 vv twist?

 

[jimbodaddy74]

Try this.

Ohm's Law Calculator

 

[jimbodaddy74]

So with a 4.8v charge, and a 1.8 ohm coil, you will be drawing 2.667 amps and producing 12.8 watts.

 

[jerseyman32]

Thanks eveybody

 

[Norrin]

Use this to work it out. Ohm's law | Steam Engine | free vaping calculators
but 4.8V on 1.8 Ω is 12.8W
and on 1.5 Ω is 15.26W

 

[BigEgo]

The part the confuses me is this.. All my batteries are 4.8 volts at the max, should they produce enough power to run the coils properly also how do watts play into this,my ipow is a 15 watt vw so can i push more power to the coils than i can with a regular 4.8 vv twist?

4.7v on a 1.8ohm coil = 12.3 watts

Therefore, if you took that 1.8 ohm coil and put it on your 15 watt device, it would take 12 watts to give you the same vape as it did on your standard 4.7 battery.

So the answer is "yes" the 15 watt device will allow more power than the 4.7v device if you are using that same 1.8 coil. If not the same coil, you will need to calculate it with an Ohms law calculator (google one).

 

[Foggyroomz]

Just remember this a VW mod will not exceed the max wattage regardless of running it in VV so if you have a vamo that will run 3.0-6.0 volts and the lowest coil you can run is a 1.3 ohm coil if you set the vamo to 6.0 volts and run the 1.3 ohm coil it will not produce the 27.69 watts that the ohm's law calculator shows because the chip is regulated at a max wattage of 15 watts. If your mod is only voltage and ampere regulated which is usually 3amps for most VV ego batteries then you can run a 1.5 ohm coil at 4.3 and it will give you 12.3 watts and if you run 1.8 at 4.8 it works out to 12.8 watts power. This is the max you can achieve with an ego device due to the 3.0 amp limit of the PCB in the unit unless someone builds you a 1.6 ohm coil head custom which will work out to the 3.0amp limit providing 14.4 watts. The chips of different mods are designed to not allow a load to exceed set specifications any attempt to do so will prevent the unit from firing or will just short the PCB rendering the mod useless. I hope this gives you a little better understanding. Now that you know the ampere cut off of the ego batteries here is a mathematical formula to ensure you don't exceed its limits take the volts you want to run the mod at example: 4.8 now divide that by the ohms of the coil you will be using 1.9 and that will give you the amp load generated when fired which should be 2.53 amps which is under the 3.0 limit so you can safely vape that. Go to your apps for your phone and search free ohms law calculator and it will do all these calculations for you. Good luck and be safe.

 

[Cool-breeze]

I feel you've been given some decent resources on ohms law and such already, but on a side note I would suggest avoiding dual coils that are factory made. Those coils are tiny and tend to have issues keeping up with the increase liquid being used not to mention air flow. Just my 2 cents. Still learn some of the ohms law basics and your vaping journey will likely need that more and more down the road.