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Predicted Remaining Useful Life of Lithium Ion Batteries with current and voltage, characteristics. The Hawai‘i Natural Energy Institute (HNEI) has published several highly regarded public datasets to aid in battery research, degradation analysis, and artificial intelligence development. The Hawaii Natural Energy Institute examined 14 NMC-LCO 18650 batteries with a nominal capacity of 2.8 Ah, which were cycled over 1000 times at 25°C with a CC-CV charge rate of C/2 and a discharge rate of 1.5C.