From what I was reading on the FAQ of a site i'm planning on buying from, the life span of a typical e-cig battery, specifically the Joye 510 is only 3 weeks. Is that right? Does that mean I'm going to have to turn around and purchase new batteries every month? I figured the life span on a rechargable battery would be a little longer than that. Sorry if it seems like a noob question, it just seems like that's going to get expensive real quick.