Just traveled to Mexico and back to Seattle with drone, charger, cables props and parts, in Flymore. I discharged all six of my batteries and put them in LiPo safe bags that I put in my camera backpack with flymore bag on top of bag.. Nobody cared. I forgot I put a bottle of tequila in my carry on bag though, and Mexican security got stoked on my bag and made me empty it. They could care less about my drone or batteries, I just said it was camera and they didn't even open flymore or rest of my camera bag, they just wanted a free bottle of tequila. Good thing it was a gift from our last hotel we stayed at or I might have been bummed.