Just checked mine is v1 #57
And the v1 does chew up the battery sleeve if you insert the battery from the top first. The top contacts have rounded edges, but the bottom ones are sharp on the edges. If you insert from the bottom first and then push in the top it will not chew up the battery. The best way is to do as stated and take a bit of emery cloth and knock off the sharp edges on the bottom contacts. I do notice on mine if I fly through the watts, sometimes the .0 setting doesn't adjust. To explain, if I'm at 12w and I rapid advance, at about 50w it will change to 50.9 and then will only advance or lower by 1.0 It will not let me change the .0 I can get around it by slow click advancing, before I get to the hangup, but it seems like it is a card bug. Other than that I have very happy with it. If I want to vape at 65w I just stop it at 64.9. It has never got warm on me, and have been using it all day (12 hrs) and still have 60% battery life left. Using a 3.8 build at between 60-80w.
And the v1 does chew up the battery sleeve if you insert the battery from the top first. The top contacts have rounded edges, but the bottom ones are sharp on the edges. If you insert from the bottom first and then push in the top it will not chew up the battery. The best way is to do as stated and take a bit of emery cloth and knock off the sharp edges on the bottom contacts. I do notice on mine if I fly through the watts, sometimes the .0 setting doesn't adjust. To explain, if I'm at 12w and I rapid advance, at about 50w it will change to 50.9 and then will only advance or lower by 1.0 It will not let me change the .0 I can get around it by slow click advancing, before I get to the hangup, but it seems like it is a card bug. Other than that I have very happy with it. If I want to vape at 65w I just stop it at 64.9. It has never got warm on me, and have been using it all day (12 hrs) and still have 60% battery life left. Using a 3.8 build at between 60-80w.
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