Traveling with electronic devices
Electrical equipment with lithium batteries
Can create an ignition hazard and it's required that small lithium ion batteries such as electronic cigarettes, mobile phones, game consoles, etc. as well as spare batteries should be carried in hand luggage.
Further information can be found here
Electronic cigarettes
The use of electronic cigarettes of all types on board is prohibited. Passengers may, however, carry electronic cigarettes and carry them in hand luggage (but not in checked luggage). It is necessary to remove batteries from electronic cigarettes to prevent them from accidentally starting during flight. Replacement batteries need to be stored in separate packages, packing each battery separately, to prevent possible short circuits.
Phones/Computers/Power banks
It is recommended to travel with all electrical equipment such as phones, computers, rechargeable batteries, spare batteries and accessories in your hand luggage.
If the passenger chooses to have electrical equipment in the luggage, he must ensure that the device is completely switched off. It must not be in "sleep" or "hibernate" mode.