batt mod = battery module?

Context:
Trying to decide on a big batt mod...help me out
So I've been vaporizing for a month now, and I'm very happy with it. My box mods have been working just fine, and I've got lots of ideas for future projects. But as a reward to myself for reaching the 1000 cigarettes avoided mark, I'm thinking about purchasing a big battery device from a vendor...enjoying someone else's hard work instead of my own. I've narrowed the list down to the following: Silver Bullet, Prodigy, Janty Stick, The Chuck, and the GLV.

http://www.e-cigarette-forum.com/forum/general-e-smoking-discussion/43862-trying-decide-big-batt-mod-help-me-out.html