I had plugged in one of my Xros pods here at work to charge and was out of the shop for a while. When I came back in I smelled something like burned plastic. For some reason my favorite Xros which was the original one that I got for review a couple years ago and use every day at work had melted down and dumped all the liquid out. It had actually melted the pod into the opening. I guess I better order a couple spares. I do have an Xros 3 and it's pretty good but really liked the original a lot.