Hi,

i just wanted to ask what is the best way to transport the Spark and 2 additional batterys on a long haul fligt.
Do i need a lipo bag? At which power level should the batterys be? can i just transport the gear in the original spark case?

Thank you in advance.

You could probably just keep it all in the case it came with or the carry bag in the fly more combo (i would say the case it came with since it's a bit more protective of the drone).  Best to keep the batteries at 50%. You don't want them fully charged nor do you want them near empty. Both states can be dangerous in that environment.  They need to be in your carry-on for safety reasons.