Dataset for: "Lifetime instabilities in gallium doped monocrystalline PERC silicon solar cells" by Nicholas E. Grant, Jennifer R. Scowcroft, Alex I. Pointon, Mohammad Al-Amin, Pietro P. Altermatt, John D. Murphy Accepted for publication in Solar Energy Materials and Solar Cells on 14th November 2019. DOI: 10.1016/j.solmat.2019.110299 The dataset (a single file in XLSX format) contains the data behind the figures in the paper. Captions to the figures are given in the paper. Abbreviations, variables and methods used are defined in the paper. Please address any queries to john.d.murphy@warwick.ac.uk.