DC charging losses

The company I work for just developed a new High Power DC charger. We recognized a huge gap between power leaving the charger and power displayed by the car. Like 105kW out of the charger (meter is right before the charging cable) and the Tesla displays 94-95kW charging power. This gap is always between 5-10kW, even if the car is warm (driven Autobahn and our lab has 20 degrees Celsius. Other EVs don’t show as much difference.

Any idea where those 5-10kW of power are lost?

submitted by /u/uNki23
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