While the SpaceX-developed cold gas thrusters and powerful suction system grabbed most headlines around the Tesla Roadster's epic reveal, the supercar also needs solid EV fundamentals to deliver the kind of on-road performance the automaker is after. Tesla has taken care of that with its most advanced high-voltage battery pack yet.

While its ground-effect fans and make it drive upside down and jump over obstacles, it still needs solid fundamentals and as an EV for strong everyday performance. “It’s everything we learned at Tesla for 20+ years making electric vehicles put into one,” Lars Moravy, Tesla’s vice president of engineering told Hagerty’s Henry Catchpole, referring to the Roadster’s battery.

While we don’t know the pack’s size yet, Tesla said it will deliver more than 300 miles of range, plus serious charging and discharging performance. While batteries in its mass market models like the Model Y and Model 3 are geared toward longevity, Moravy said, the Roadster’s cells really prioritize power density and performance.

The automaker is using its own in-house developed 4680 cylindrical cells on the Roadster. Moravy called it a “bespoke chemistry for high power throughput” in a Top Gear video, but said the materials were still lithium-ion and nickel-based.

The more interesting bit, however, might be the battery’s thermal management system. The dual rear motors together generate a peak output of 1,341 horsepower and 1,032 pound feet of torque on the top trim. That means the battery cells can heat up very quickly if the cooling system isn’t good enough.

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