simply said:
Hi everyone, I have a 2018 SL that I’ve been quick charging from time to time from about 30% or so and I haven’t seen 50 kW on my dash. The most I have seen is 27kW. I’m not having good feelings that this car on a long trip is going to charge fully in 30 mins or even an hour. When I do charge I get 80A 400V but inside I’m reading 27kW.
Thoughts?
400 V * 80 A = 32 kW
So your question is where is the difference going.
Perhaps ~ 10% of the 32 kW is lost in AC -> DC
And your battery heating up is energy lost -- I presume resistance losses inside the battery
Net 27 kW energy stored sounds pretty ball-park.
If you are wondering why 32 kW from the meter, that is probably explained by the battery temperature. Nissan throttles the QC speed at temperatures much over 24 C