Capacity (mAh)/ Wh: 4244mAh / 15.27 Continuous Discharge Rate: 30.3A Max Discharge Current: 41.1A Energy Density (wt.): 169.8 Wh/kg Energy Density (vol.): 442.4 Wh/l Cycle Life Retention: 500 (81%) Chemistry Type: Li-NMC 1 battery per pack.