With so much high tech, the e-tron GT in terms of cooling is even more innovative than my Formula E race car. Obviously, temperatures in Formula E are even more extreme. That’s why we actively cool the battery down below the outside temperature during the charging process using dry ice. In this way, we gain more latitude with the system temperature in the race, because that’s when we heavily stress the powertrain by constantly changing between flat-out driving and recuperation. Obviously, this heats up the battery and costs energy. The more extreme the conditions, the more I have to pay attention to efficiency and management of my energy supply so that I’ll still have enough power left on the final laps.
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