This is so weird.
I've been vaping with a 510 LR atty and the Ego batt , everything was great, then I tried the tank atty again, and it doesn't work at all with the Ego batt. Both atties (the ones that came with the Ego-T) are completely dead when coupled with one of the Ego batts. No hissing noise, no vapor, just dead. The batt works fine with the LR. and both of the atties work with the other battery.
Too much fuss with this thing.
Also I'm beginning to hate the word "atty"