my first e-cig, and my first mistake. stupid kiosk. no directions, no options, no service. I had no idea all of these other options existed. the xhaleo2 is a mini 3 piece model, looks like an analog. thats all they sell. anyway, mine works well most of the time, had it two months and havent had to replace anything, and i use it all the time, previous pack a day smoker. and by some of the reading on these threads, i guess thats good. but without a model number i have no idea what its compatible with and i would like to switch to refillable carts, the prefilled are just to expensive. it didnt come with any other batteries or attys, and i dont want to give the a**hole at the kiosk any more of my money. what kind of empty carts should i get? (its the kind without the battery switch) and thanks for having this forum. so much to learn, just wish i had seen it before. i cant afford to buy another kit from scratch, so i have to make do with what i got now.