Hi. Am new here and first post. Had the ZMax for little over a week now and it's been performing great with the ICR 18650 (2200 mAh) & 18350 (900 mAh) batteries that came with it. However with the more recent purchase of the TrustFire Protected 18350 (1200 mAH) the ZMax turns on fine but doesn't fire. At the press of the button it fires for a sec and turns off by itself. Taking out the battery and reinserting it again yields the same result (with or without any cartomizer/clearomizer attached). I'm beginning to think that the ZMax doesn't fully support Protected batteries. Any thoughts? Thanks.