An advancement of the current understanding of how ionic transport phenomena in general relate to structure and morphology of salt-in-polymer electrolytes is central to the development of more efficient macromolecular ion-conductors suitable for, e.g., thin-film battery applications. The present paper describes methods for measuring key ionic transport properties in binary polymer electrolytes, including ionic conductivity, salt and ionic diffusion coefficients, and ionic transference numbers. We also address the influence of local self-organization phenomena in the solutions upon measured transport properties.