Ok so I've been vaping for a week and started out with the Kanger Evod 2 Starter Kit. So far I think it's really awesome, but I do have some issues. 1.) the tank is too small and requires filling about 3x's a day and 2.) I'd really like a stronger vape. SO, I've already bought an Aerotank Mega with the variable air flow valve. Now here's where I could use your advice-I'm stuck on which battery to get. I like the twist battery concept of variable voltage, but it gets so confusing with the mAh's and all the technical lingo that I don't understand what it means. What's the difference between the ego Twist and the C Twist? What's the difference between 900 and 1500? I don't need/want anything fancy schmancy, but one that I can be satisfied with. Thanks in advance 
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