I just ordered my first Ego kit and I can't wait to get it. After reading everything I could about all the options I was on overload trying to figure out where to start and what to buy. I am planning to use cartos and need some advice what I should buy. I want a battery that will last most if not all day and cartos that will get me through the day. What I'm thinking about is getting either some dual cartos and/or XL's. Another question is that I'm confused what size batteries to use with different size cartos. I'm thinking that I am going to need a bigger battery than the one included with my kit.