Since the smart ED4, without 22kW charger (Does my smart have a 22kW charger?), can only charge with 1-phase 4.6 kW / 7,2kW, it is limited to a third of the wallbox output and therefore only charges 3.7 kW. To be able to charge the full 4.6 kW / 7,2 kW, you would need a 22 kW wall box. This provides 3x 7.2kW.
- It's a different story for the rest of the world
- Left hand driven Euopean models are limited to 4,6 kW, the rest of the world is limited to 7,2 kW.