I recently bought a couple 1300 mah batteries for my Ego-T and they work with the original tank type cone atomizer but the Dual coil gets NOTHING. The seller says that he tried multiple things to make sure the connection is being made so he thinks it could be a a specific resistance issue. Anybody have any ideas. One of the 2 1100mah batteries that came with the kit is already dead ( i mean dead, no lights, no charging, nothing) so i thought the 2 new batteries would help me get through at least a little while. Now they don't work with the Mega dual coils, this is extremely frustrating.