I live in US and thinking to travel to Europe next spring. I'm thinking to get a drone with couple extra batteries and take it with me as a carry on to get some aerial shots. Anybody had any experience with that? For example, I'm thinking about the DJI Phantom or Inspire; are 5200mAh (57.72Wh) and (129.96Wh) respectively.
The regulations are a bit odd, but as you are travelling to Europe, I will refer you to the UK regs:
In essence you need to declare anything over 100Wh and cannot transport anything over 160Wh
You cannot put spare packs in the hold, if you put the copter in the hold with a pack attached that is OK. The rest must be in carry-on.