The 47V 20Ah Ultra Battery from Johnson Matthey Battery Systems is a EV Battery with Battery Capacity 20000 mAh, Nominal Voltage 47.5 V, Charging Current 4.0 to 8.0 A, Discharging Current 10 to 20 A, Energy Density 949 Wh. More details for 47V 20Ah Ultra Battery can be seen below.