1,138.2 kWh · 500 kW · Lithium Ion
ChargePack+ 379-I-03-04: 1,138.2 kWh nameplate energy; 500 kW continuous; lithium ion.
1,138.2 kWh nameplate, per the California Energy Commission list.
Yes — the CEC list shows UL 9540 certification (certified by intertek).