Looking further I am thinking these instead?http://www.giantvapes.com/high-amp-aw-imr-18350-800mah/
Those appear to be the same batteries I'm using except mine are the flat top version that my local vape shop had in stock. Shouldn't make any difference. My 18650s are button top and work just fine in the ZMax.
You can't go wrong with AW brand from what I've read. They are the preferred brand if authentic. With the low power of the ZMax and and coils at 1.8 ohm or above I'd be comfortable with either of those batteries.
Thanks, you are a tremendous help.
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