Hey guys, so I have just recently got myself a tugboat and 2x efest 18650 2900mah. All was working perfectly then yesterday I put two Samsung smurfs in and they went from antarctic to volcanic in seconds and started smoking. The obvious thing to do was get them out as quick as possible and did exactly that. After putting the efests back in there was no fire and moved the plates abit where the batteries touch (+ & -) which has worked perfectly apart from the fact that the battery on the left hand side is pretty much remaining full and the battery in the other side fine. Now sitting with one battery taking hours to charge and the other taking 5 min. Sorry for the lengthy post but I really don't know what to do......