The monomer evaporation energies and fission barriers of doubly charged silver cluster ions in the size range 9 ≤ n ≤ 25 are measured by collision induced dissociation. They are compared to the dissociation energies of singly charged silver clusters. A macroscopic liquid drop model combined with empirical microscopic corrections successfully describes the measured fission barriers.PACS. 36.40.Qv Stability and fragmentation of clusters -36.40.Wa Charged clusters