In this study, one clear outcome with high impact on previously collected electrochemical data on coin cells, is that the steel grade of cell parts, as well as the in-housed total height of the electrode stack have dramatic influence on the acquired electrochemical data, e.g. under “bad” conditions the cycling stability drops from a few thousand to few hundred cycles. Further, it is shown that inappropriate conditions like the cell contacting and cycler settings have additional impact on data collection. Further, using the same electrodes, we show direct rate performance differences of calendered vs. uncalendered electrodes, as well as full-cell test results by means of rate capability and long-term cycling stability. While compression of anodes is less crucial for rate capability, substantial differences are measured in case of the cathodes, highlighting the importance of sufficient cathode densification. Moreover, for long-term capacity retention studies, it is demonstrated that electrode densification of both, cathode and anode is crucial for high long-term capacity retention.