An aircraft has a battery block for supplying the aircraft with energy. The battery block is arrangeable within a battery compartment of the aircraft. The battery compartment is arranged within a volume formed by a fuselage of the aircraft and is accessible from the outside through a receiving opening in the fuselage. The battery block is introducible into the battery compartment through the receiving opening. When the aircraft is used as intended, the receiving opening is arranged on an upwardly facing top side of the fuselage. The battery block is insertable into the battery compartment by the battery block being moved along an introduction axis oriented substantially parallel to the direction of gravitational force. The battery block comprises a handle, which, when the battery block has been inserted properly into the battery compartment, is accessible from outside the aircraft.