DC charger only delivered 20kW - trying to understand why.
I have a BYD Atto 1. It has a max charging draw of 85kW (DC). Today I pulled into the Evie charging bays at Sunshine Plaza in Queensland. The DC charger there is rated at 150kW.
My car was at 44% and according to the DC charging curve that I have, at 44% it should be pulling the theoretical max of 85kW.
However, for the entire time I was plugged in, it never delivered above 20kW.
There was a Polestar plugged into the other plug on the same charging station, and they were drawing 45kW.
Does anyone have any idea why I only drew a paltry 20kW? I should've been able to get near the theoretical maximum or not? What am I misunderstanding about how DC chargers work?
Thanks!