Sub-ohm Dual coils questions/concerns

[Argo2013]

ok so I bought some Sony VTC4 batteries 30A and just got in some 26 gauge Kanthal wrapped me a 0.5 Coil and works awesome as a single, was wondering how the dual coil changes the Amp Draw, since I know if you do dual coils it divides the ohms would that be the new resistance that I compare for safety or would I just need to make sure each individual coil is above the .2 or .3 ohms?
sorry if this sounds confusing.

 

[State O' Flux]

Do you have a DMM or box ohm meter? Fit your two 0.5Ω individual coils - this should give you a net resistance, when measured with DMM or Ω-box at the atty 510 contact and ground, of 0.25Ω.

Ohms law math indicates that a 0.25Ω net resistance will require double the 8.4 amps required for 0.5Ω... or 16.8 amps continuous drain at 4.2 volts. Change the voltage - because your battery will discharge from the theoretical peak of 4.2v almost immediately - and all the values change with it.

Utilize the "Steam Engine" coil, ohms law and battery discharge rate calculators found in the hyperlink of my first sig line. In the second sig line is information you may find valuable for sub-ohm vaping.

 

[Argo2013]

Thanks that helped a bit, I currently use a box mod that has an ohm meter built in for measuring my resistance, That steam engine page is awesome.

 

[State O' Flux]

Thanks that helped a bit, I currently use a box mod that has an ohm meter built in for measuring my resistance, That steam engine page is awesome.

Might want to compare your box mod ohm meter to a real, "known accurate" DMM. When you start running below 0.4Ω, every tenth of an ohm is a big jump in amp drain, so accuracy it critical to your safety.