Take a look at the Spinner 1300 mAh. I've read very good things about them. A ego Twist 1000 mAh is also a good choice. I think you will be more pleased with the variable volt once you get it. It will allow you to adjust voltage and try different OHM heads. Oh, what the heck, someone will tell you to get a Provari sooner or later, so just go ahead and get one.