A typical drive-train of an electric vehicle (EV) has three main components: a traction battery, a traction inverter and an electric machine. Correspondingly, the overall performance and efficiency of the drivetrain depends not only on the characteristics of each of these three components, bus also on their interaction during operation. To choose between different battery cells in the first place, standardized tests can be performed to reveal the characteristics and the performance of the cells. However these tests cannot be used to determine if a cell is suitable for a designated application, since an estimated load-cycle depends both on the battery (and hence the cell to be tested) and the applied load (inverter, machine and vehicle) and is therefore not known. To address this problem of testing and selecting cells, in this work a novel approach will be presented, that combines a PHIL system for testing individual cells with a PHIL test-bench for testing the traction inverter.