A packaging unit adapted to contain at least two button cells includes: for each of the button cells, a separate individual compartment that encloses the button cells; the individual compartments are each formed from a separate thermoformed plastics hood and a back plastics film fixed thereto; the individual compartments are configured such that they cannot be opened without tools; a carrier on which the individual compartments are attached; and the individual compartments are spaced apart from one another on the carrier.