Deliverable 2.2, “Details of test methodology and validation plan”, is dedicated to the definition of the target studies. This includes the technical details of the testing methodology, covering all scheduled laboratory measurements and investigations, spanning from the characterization of individual cells to the cycling of cells and the two prototypes, the zBMS and zBMS+. The work also encompasses the definition of suitable cycling profiles, boundary conditions, and the definition of pass-fail criteria with respect to the specifications from deliverable D2.1. This deliverable report includes the design of experiments and details of the test methodologies for single battery cells and the developed module prototypes.