I've got my new kanger duel coil tank. could some one let me know how long the coils roughly last . I am going on holiday from tom for a week so I don't have time to order extra coils in. But I think they will last. Also on a innokin I taste battery. Witch I've also got new. This morning I put some liquid in and put the tank on the battery and in the top left of the display screen it was flashing and wouldn't let me take a drag. I think it's ohm bit. Right now it says 1 . 6 I don't know why it was flashing ? Uts not now I've got it at 10.5w and 6 not I don't even know if that's right