The Myth of the 30 Amp Battery

[mohitgarg]

I had a hard time deciding between the EFest purple and AW IMR for 18350, and decided to go with AW, because I knew I was getting what on the tin can.

 

[DeadbeatJeff]

All I see these days are ads for 30 or 35 amp batteries. And I ask myself, does the average vaper need this much amperage?

Plugging these figures into an ohm law calculator, we find when vaping at 1.8 ohms on a freshly charged battery at 4.20 volts, the current draw is only around 2.33 amps and less than 10 watts of power. And this current requirement (when using a mech mod) will only go down as the battery drains.

Obviously sub ohm resistances will require more, but even a .22 ohm build at 4.20 volts is only around 21 amps.

Any thoughts on this?

I think that @ 0.15Ω you'd vent anything with less, and at 0.2Ω you'd want the extra cushion anyway

I also think I vape dual coils around 0.2Ω frequently enough to warrant having VTC5s around

 

[WattWick]

Not one single thought goes towards cloud chasing in the battery research labs and manufacturing plants. Us vapers are just along for the technological ride. Or, the quest for a better battery, if you will. A more efficient battery. Less energy wasted has the side effect of allowing for higher discharge.

"The perfect battery" would hold 100% of the electric energy from a charger, store it infinitely without loss and discharge 100% of it into whatever you connect it to; in a split second if needed. This is the goal. The fabled *thunder voice* super capacitor. Every generation of battery is one step closer to this.

If I am to buy a battery today, I want a current generation, as efficient as can be, battery. I see no reason to buy an inferior battery just for the sake of "not using all its potential". Because you do use all its efficiency-potential every time you push the button. If we were talking a $200 battery vs a $10 battery, it would make sense. But, we're talking batteries that cost <$10 a piece. Heck, at Fasttech you get 2x VTC5 for $10.

 

[SoberSnyper]

Now plug in .3 ohms and it makes more sense. Also a dual coil or quad coil of the same ohms will pull more amps than a single coil. Not all ohms are equal.

Uh, no it won't, a dual coil will pull the same amps as a single coil if voltage and resistance are the same. If your input parameters of the circuit remain constant (voltage and resistance), then the output parameters (current and power) will remain the same as well.