well after owning the Echo-E (manual battery) for about 3 months now i had a major failure. while at work i took a hit sat it down to help a customer. can back smelt somthing burning picked up the ecig and it burned my hand realized the button got stuck. if this would have been in my pants i wouldnt doubt that it would have caught fire. now im afraid to use the other battery. im not sure if the battery itself blew up or not. its suppose to have a 10sec shut off which failed. has anyone else had this problem?