 Li-ion Battery Aging Datasets by NASA

Primary NASA dataset description: custom battery prognostics testbed, controlled charge/discharge and temperature conditions, programmable load and supply, voltage/current/temperature sensing and data acquisition. The stated aging end criterion is 30% rated-capacity loss, from 2 Ah to 1.4 Ah; this is distinct from the potential threshold ending each discharge.

“Intended Use” in data.nasa.gov/dataset/li-ion-battery-aging-datasets states that different discharge depths, rest durations and intrinsic variability produce different states of life at the same cycle index. It distinguishes remaining-life prediction for one discharge from long-term aging end of life.