t and the worst cell in the module. The best and the worst cell is 
% determined based on the cell-to-cell variation specified in *Effective 
% rate of coolant heat transfer from each cell*, *Cell terminal resistance 
% R0 variation from baseline*, *Cell Ahr rating variation*, *Cell Self-
% discharge resistance variation from baseline Rleak*, or *External heat*. 
% For more information on the model fidelity, see table in the Appendix-A
% section. |Grouped| model working principle is shown in the image below