You must keep the battery on your person and place it in a tray going through TSA checkpoints.
I just looked this up, you can fly with 100 ml in your carry on. Your vape Device has to be put in your carry on, taken apart. It can't go through checked luggage due to the risk. You are not allowed to vape in the airport or on the plane. Only in designated smoking areas. If you saw my last post I was unaware of what e juice was so disregard that.
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