If the motor is 3500 watts at peak; what’s the continuous rating in the 303FS?

BMS allows for 45a continuous and 90a peak discharge current. That is a lot more than 1500w. The BAC855 allows for 50a continuous and 60a peak. The motor can be pushed to 5000w, and the Ristretto is advertised as 3500w. But 52v x 60a (peak discharge from the BAC855) = 3120w.