Hi, I am flying to Thessaloniki in May with British Airways and want to take my P2 with me. Has anyone recently recently done this with BA? I would want to take the P2 as hold luggage (in a backpack) but have no idea what to do with the batteries - fully charged, half charged, no charge, lipo bags etc? Take them as carry on or put them in the hold? Also, any restrictions when I get to Greece? Thank you.