Trox, I too am having problems with my brand new NJoy and have emailed them about replacing it.
I have one bad battery and my charger gets WAY hot, I mean way way hot. Atomizer seems to be going kaput also. So I will see how they do on replacement.
Still have my dse103 and two dse101's (the first ones I got) and out of all three, have one atomizer working.
Have Crown7 that is working well for husband, but he is not using it full time like I am.
I have a penstyle and two mini's ordered and shipped from DealExtreme so I will see how that goes.
I am doing so well with NO tobacco cigs that I am going to stick with no matter how many units I have to buy, but I do look forward to the improvement and standardization of the technology. And I am confident that it WILL happen, I have seen it too many times in my 56 years, first time out of the shoot so to say, the tech is flawed, every unit requires different batts, different this and that, but it WILL all settle down as the industry does it's R&D and finds out the directions that markets to and services the user the best.
Right now I am scrambling to keep all the batteries, atomizers, charges, straight and working, but even with that challenge, it's way way worth it and I will stay with it as I know it will get better in the near future.
Even if I have to replace a mini and a pen style twice a month, (not the case now, but just worst case scenario), even if I did, well it still beats what I have been spending on cigarettes and a LOT better for me and mine......
thanks for listening to my ranting.. have great day !