It is lower powered, but you should get more than 70kW from an urban stall. The point where it starts to taper down to lower power varies by car model but should hold above 70kW until at least 70% SOC. Of course, I'm talking about California weather. Cold batteries have limited charging power.I've done that in the past. This time I did not bother since I had time. But this was my first experience with the low powered supercharger, so I did not really know if it should act like a 120 kW charger with just a lower limit.