I'm a big fan of the Sony VTC4 and 5s. Can't go wrong with the 30 amps! Even if you're not planning on subohming super low, it's nice to have that wide of a range a range available to you. Plus the battery life of the VTC5s especially is just superb and they're very high quality batteries in general.
MNKEs are really good batteries too though, and you'll have a max of 20 amps at your disposal. That's almost as good lol. I have no experience with Efests or Panasonic as another user mentioned, but I do hear good things about them. I've used AWs in a regulated mod before, and I don't have any complaints. However they're kind of expensive in my opinion, for the mAhs and especially the amp limit you get so I don't really recommend them. You can spend the same amount and have the Sonys. Generally you just want to avoid anything no name/generic or Trustfires. Don't buy Trustfires. They're garbage. You also need to be aware that battery counterfeiting is a big thing, and buy your batteries from a dealer well trusted in the community. Don't just go buy something cheap on Ebay. You may not be getting what you think you're getting.
I'm also just going to leave this here too, in case you don't have anything to reference about battery safety and ohms and amps and what not.
http://www.e-cigarette-forum.com/fo...-discussion-safety-battery-info-warnings.html
