Passengers have been told not to bring these five things in their checked luggage. Sometimes luggage can get misdirected so you might want some extra things in your hand luggage. (Image: Getty)What should I not take in checked luggage? MedicationPrescription medication is less likely to get lost if you keep it in your hand luggage. ElectronicsItems with lithium batteries like vapes and power banks should not be put in checked luggage because they could catch on fire.