A stronger hit depends on a few things. The juice, the voltage, the resistance and the particular carto or whatever you're using. By "larger battery", if you mean larger capacity, then not necessarily. You have a regulated battery. The voltage holds steady at 3.4V from right off the charger to cutoff. An unregulated battery will start at about 4.2 volts and gradually decrease in voltage. So a larger capacity unregulated battery will stay at the higher voltage longer than a smaller one. That doesn't really enter the picture with a regulated battery like yours.
You can use any kind of clearomizer or tank that fits a 510 connection with an eGo. My personal favorite clearomizer is the Fluxomizer. It still takes a needle tipped bottle or a syringe to fill, but other than that, it's fiddle free and absolutely does not leak. The vivi nova tanks look like they're going to be really great when they get the next version shipped. Right now, they're having problems with the replaceable heads on them. Some people are having good luck with them and some not so much. They are impressive, especially for the price. They might be worth the gamble at $15 with 3 interchangeable coil heads.
Here's the easy way to deal with ohms, volts, and whats, errr... I mean watts.
First thing to remember is Watts = Heat. The more watts, the more heat, the warmer the vape and the more vapor, and vice-versa.
Second thing is that too many watts and the vapor is harsh and lighter flavors get washed out and burnt tasting.
Most people like their vape between about 6 and 10 watts, depending on the juice and their own preferences in warmth.
So, here's how to figure out what you'll need to hit your sweet spot. It's a very simple formula:
Volts X Volts / ohms = Watts. Ohms is the number representing the resistance of your carto or atty or whatever.
Your battery puts out 3.4V, so...
3.4 x 3.4 / 2 = 5.8 Watts. That's a tad cool. If you lower the resistance, you'll get more watts/heat.
3.4 x 3.4 / 1.7 = 6.8 Watts. Much better. Some people are o.k. with that, but let's try it with a 1.5ohm carto.
3.4 x 3.4 / 1.5 = 7.7 Watts. That's about as warm as you're going to get with a 3.4V battery.
You might have heard of 1.5ohm dual coils. Although the total resistance is 1.5ohms, they are really two 3ohm coils inside one cartomizer. So what you have is:
3.4 x 3.4 / 3 = 3.85 Watts. That sucks, but you have it twice. Once for each coil. 2 x sucks = doublesucks.
That's why you never want to use a Dual Coil cartomizer in a lower voltage battery. You really need at least 4 volts or more.
So, I hope that clears up some confusion about volts, resistance and watt not.
