Ok. If you're a mekkie, make up your own mind. You know what you're doing, or you wouldn't still be alive. I have to wonder, though, why not buy a regulated box if you really want to carry two batteries and it isn't a contest mod. The Sigielei 150 is going at about the same price and makes a good bit more power. Just a thought. That certainly is a nice looking box mod. If you get one, I hope it works as good as it looks.