> Counterintuitively it seems that "make it up with volume" is winning; The 18650 is a form factor, not the chemistry. Tesla uses the 18650 in the Model S and

> Counterintuitively it seems that "make it up with volume" is winning; The 18650 is a form factor, not the chemistry. Tesla uses the 18650 in the Model S and X but uses a 21700 form factor for the Model 3, Powerwall and Powerpack. They announced during their Battery Day event the transition to the 4680 form factor. The Powerwall and Powerpack uses a Lithium NMC chemistry which is different from the Lithium NCA chemistry used in their automobiles. * Clarification