Hope it helps ethic, my batteries all ended up with huge dent in the bottom from that same problem. Mike(manufacturer) said you must be doing something wrong blah blah blah. Finally after hours of fiddling and trying to communicate with him (never could) I changed the screw and fixed that part. sheez, hours and hours of fiddling and still more challenges ahead. In the end I have a nice paper weight.
honestly the materials and quality control on my zenesis is great, the design in my opinion sucks.
Scott (igotcha) reviews almost all genesis and still will not write a review for the zenesis, make your own assumptions.
pictures of my sdog with 18350
with 18500
with 18650 not shown, just the tube (click to enlarge).

