Yeah, that's EM's claim. However one cell represents about a 2% loss in one "brick" That represents a 2% imbalance for the pack so effectively 1 cell is responsible for a 2% loss for the entire pack. It's actually quite an erroneous comment. More like about 1.2KWh per cell lost since now discharge needs to stop when that low brick reaches the cutoff voltage. Another cell in that same brick means another 1.2KWh loss.I categorize that more as cost and maybe quality. The strength of battery designed with several thousand semi-independent cylinders is that a few of those cylinders (maybe even their connections) can go south, and you still have a functioning battery. The owner might see less range, performance, capabilities, etc. compared to what the car should have, but hey, what's a few hundred Wh of capacity among friends?