Ok guys I am continuing having this issue with it not coming back on when I change the batteries?? Kurt I think suggested cleaning the cap and something about steel wool? Uh.....could someone explain that a bit more? This thing is clean as a whistle, it's only two days old, so what would I be cleaning? Lol

. Also I can't screw the bottom cap on all the way when I do get it to come on, is that ok? It makes me nervouse to stand it up, I am afraid it will shut off.
Also when mine does come on it resets to 3.5, I thought it was 5v? And one other thing I am sometimes getting a 99 code? I looked st the measly lil manual and it doesn't say a thing bout that. I think once I figure out how the ins and outs of this lil monster max we will get along beautifully, just having a few bumps in the road.
Any help or suggestions are greatly appreciated. I am a lone female vaper, with a non vaping hub, so u guys are all I got! :/