Recioling Evods Novas etc..

[steffijade]

I think I'm happy with anything around 1.8/2.0 at the minute. What I really don't understand is all the high voltage stuff. What I mean is surely you can achieve the same power output with a lower ohm and voltage as you can with a higher ohm and voltage so is there a genuine benefit of running at higher voltages?

Using a higher ohmage usually means more winds per coil, which gives a larger surface area and when used with higher voltage gives, (in theory), a smoother vape. Also, using higher ohms/higher volts has a lower amp draw than using low ohms/lower voltage.

For example, running a 2 ohm coil at 4 volts produces 8 watts and pulls 2 amps. If you use a 3 ohm coil at 4.9 volts, you'll get just a touch over 8 watts but only be pulling 1.64 amps. Pulling less amps put less stress on your batteries.

Edited to add: link to an ohms law calculator : http://www.ohmslawcalculator.com/ohms_law_calculator.php

 

[Bigwhiterabbitt]

So using lower ohm coils on ego batteries is simply out of necessity because you cant up the power enough to heat higher ohm coils?

 

[steffijade]

So using lower ohm coils on ego batteries is simply out of necessity because you cant up the power enough to heat higher ohm coils?

Aye.. iirc the voltage on a standard ego is around 3.3 volts so if you stick a 3 ohm coil on there you're looking at around 3.6 watts. I usually like to vape around 8/9 watts so to get close to that on an ego I'm looking at a 1.5 - 1.8 ohm coil.

 

[Bigwhiterabbitt]

Ok so I'm using a 1.5ohm coil at 9watts which gives me nice flavour with the juice I'm using.. if I switch to a 2ohm coil at 9watts in theory I should get a better vape?

 

[steffijade]

Ok so I'm using a 1.5ohm coil at 9watts which gives me nice flavour with the juice I'm using.. if I switch to a 2ohm coil at 9watts in theory I should get a better vape?

The theory is that a larger surface area gives a smoother vape, so in theory, yes. Be aware though, by using a higher ohmage you'll be using higher voltage.

 

[Bigwhiterabbitt]

That's been very helpful thanks a lot..