i have 2 joyetech c batteries. about a week ago, one stopped working. i got a return authorization from vendor, but have not made it to pst office. 2 days later, i was messing with my toys and lo and behold the bad battery started working! i noticed my tank had moisture on it last night...so took the tank off, checked out fine. put it on the battery, and battery wont work. put it on my second battery, second battery wont work. both are fully charged, turned on with 5 clicks. niether are coming on now. this is a puzzler.....it is driving me crazy. did my tank leak into the battery without me knowing it? what? take it easy on me, i am a newby. thanks