I just flew on American airlines with no problem having my mods and batteries in my carry-on luggage
I’m glad this thread got started as was just getting ready to ask the same questions. I’m gonna be flying to Orlanda from Pittsburgh, so only a US flight and couldn’t find the information about transport. I’m only flying 1 way and renting a car to travel and then return with is why I was concerned. Whew…thanx OP for this thread!!!