A bigger battery will last longer. There is no way to get around that. It will also deliver more power so you can use a lower' ohm carto.yeah true, well i have already ordered the v2 so i hope i like it, but i think ill have to just buy one of the bigger ones just so i really know the difference between them
The more power a battery sends to the coil the more juice that can be vaporized.
power = watts
More volts = more watts = more hit and vapor.
Lower ohms = more watts = more hit and vapor.
Using more watts will also drain your battery faster.
With the same voltage you will get a lot more hit and smoke with a 2.0 ohm cartomizer than with a 3.0 ohm cartomizer. To say a battery gives good smoke and hit doesn't really mean anything. It is the combination of battery votlage and cartomizer ohms that matters.
. I don't want to bash a company - V2 had some good qualities and they are fairly new but I just don't like products to be misrepresented to me. Stick with ECF before you make any further purchases. These guys have been vaping for quite some time, successfully and know the ends and outs that will help newcomers like us. Good luck to you - and me for that matter - still trying to get off analogs completely but do have faith that day will come soon 