Single/dual coil battery life. A question.

[MortenOen]

Greetings!
I have now repeated my experiment several times, and I can't explain my results.

Simply put, why does a single battery/ single coil setup go through twice the ammount of e-juice, compared to a dual coil/ single battery setup?

I have used 3 different squonkers, and 5 different RDAs, and the same battery. Every time I use a single coil, I use up the whole bottle (8ml) before the battery is empty (3.5V), but with a dual coil setup, my battery is empty (3.5-3.4V) when the bottle is still half full no matter the total ohm. On the dual setup I have had total of 0.14 to 0.25 Ohm, but never vaped more than half of the bottle. With single coil I have had from 0.16 to 30 Ohm, and emptied the bottle every time.
vape and flavor seems to be the same. The type of coil wire is also the same. I just don't understand it.

 

[Izan]

Hi mate,
IMO: You use/draw fewer amps with the single coil builds.
Lower amp draw, longer battery life. (mAh)


Cheers
I

 

[bombastinator]

I also find dual coils use up more battery than single coils. I can’t explain it either. It sort of makes sense, you’re heating up twice as much metal. I find there is less juice use and smaller clouds with a single coil as well. I could see your situation occurring if you’ve maxed out the available juice flow with a single coil so even though you have two coils and are burning twice as much electricity you’re using the same amount of juice. I don’t even know if that is possible though. I’m just as confused as you

 

[bsidb]

Nm

 

[AzPlumber]

Dual coils would be higher resistance (ea), more metal and a bit longer ramp up time. Longer ramp up time would require a bit more time on the button each hit and drain the battery quicker.

 

[sonicbomb]

Dual coils would be higher resistance

Two coils will halve the resistance.

 

[AzPlumber]

Two coils will halve the resistance.

Did you see the (ea) after?

 

[sonicbomb]

Yes, but I don't know what you meant by it.

 

[Steve Parry]

In order to build a dual coil and single coil to the same resistance, the single coil has to be half the size of each of the dual coils. This means you have 4 times the surface area vaporizing liquid on the dual coil setup that you did on the single coil. Thus, you're vaporizing more liquid in the same amount of time.

It's not really a question of battery life as I read it, as you didn't list the amount of time each setup took to discharge the battery, but rather how much liquid was used during the cycle.