[Rick TYler]

Airlines also charge you extra if a box is more than 20x20x20 (check your own airline for specifics, this might not be true of them all). We've carried six robots to world championships events over the last two years and did it using standard 20x20x20 shipping boxes with the robots and parts wrapped in bubble wrap, carried onboard as luggage. No hassles with airline for batteries or robots other.