As you know I ordered an innokin coolfire2 last week. The thread on the top of the clearo was tight and I didn't like to force it, so bought a replacement. Then, I noticed it kept leaking, small amounts, so I started under filling. Well, tonight decide to give it another go, freshly charged batteries, filled to 2ml, it immediately turns itself on, and starts producing smoke and making a crackling noise. Suddenly smoke turned into plumes, got battery out ASAP and whole of battery compartment was full of vape fluid! I felt it getting warm when I picked it up but it was sitting by my bedside table last night and could have just turned itself on then and gone on bloody fire. Am really shaking. I just hope the sellers are reasonable- I want a refund, not going near one of these again! It was The Vape Specialists, good website so hopefully they will be reasonable.