Finally, under real-use discharge conditions, we find that the optimal C-rate balancing time-induced aging and cycling aging is unexpectedly in the range of realistic EV discharge rates, contrary to previous findings in accelerated studies . Figure shows that up the tipping point of 0.4 C, the lower the current, the fewer the EFCs. Notably, while correlated with the experimental time, the C-rate is also convoluted with the DOD, as discussed earlier. Both dependencies are responsible for the trend observed here below the tipping point. Above 0.4 C, cycling aging dominates. Cycling-induced degradations and time-induced degradations being equally important at 0.4 C challenges conventional battery wisdom and is critical for battery pack sizing and lifetime optimization.