So I went back with my original set up, just XL manual batteries, cartos and juice. I got 2 of the Vapor King XL manual batteries and in just a couple of weeks both quit working. V4L replaced them and they seem OK for now. I gave 1 to a friend to try and decided I'd get one of the new manual batteries they are selling, the Vapor Titan. For 3 days it worked fine, then it started turning itself on without any pushing of the button. Nothing I did could get it to turn off, so I just let it sit for 2 days, running until it ran out of power. V4L is replacing it, too.The best thing I can say about them now is their customer service is great. The product seems to have really tailed off since I quit vaping. Perhaps they have new a new Chinese factory producing their product? I'd be leary of pointing anyone interested in trying this their way. Maybe I got all the defective product and everything else will be fine, but I think I need to start looking at other options for vaping.