i dont know if anyone has replied to you or if you have found the info yourself, however, those two should mesh very well together; both are 22mm in diameter so they should fit seamlessly. I would caution you, however, as this is a hybrid top cap, meaning there is no connecting pin, just direct contact between your battery and the Mutation X. While this is generally a good thing, i.e. minimal voltage drop, as a novice, you do need to be aware of what you are doing. I personally am not to comfortable (yet) with hybrid top caps, but as long as you have a good understanding of the risks involved (accidental shorting/venting by using the wrong battery) then I would say go for it. Ensure you use quality batteries; cant go wrong with Sony VTC 4 or 5s, LG HE2 or HE4s, or Samsungs. Hope that helps! VAPE ON!