You can travel with portable chargers (or Power Banks), provided that you meet the following conditions:
- Maximum of 2 devices per passenger
- Each battery must have a capacity of 100 Wh or less
- They must always travel with you in the cabin and never in checked baggage
- They must be protected against short circuits, either in their original packaging or in suitable protective cases
- Damaged or modified batteries are not permitted
- Once on board, they must be kept in a visible place and never in the overhead compartments
- They cannot be charged or used to charge other devices during the flight