Dodge Charger Daytona EV Could Get Better Batteries Soon

Michael Accardi
by Michael Accardi

Stellantis and Massachusetts-based Factorial Energy have successfully validated a new semi-solid-state battery cell, with plans to begin real-world testing in Dodge Charger Daytona EVs starting in 2026.

Key Points

  • Stellantis and Factorial Energy have validated a semi-solid-state battery with 375 Wh/kg energy density, offering faster charging and improved cold-weather performance, with real-world testing set to begin in Dodge Charger Daytona EVs in 2026.
  • Weight savings could be substantial, with up to 2,000 pounds cut from total vehicle mass, improving EV efficiency, performance, and reducing manufacturing costs.
  • Production challenges remain, with high costs and manufacturing difficulties still to overcome before the technology can be widely adopted.

According to Stellantis, the new battery boasts an energy density of 375 watt-hours per kilogram—well above the current industry average of 200–300 Wh/kg. Charging performance is equally impressive: Factorial claims a 15% to 90% charge can be achieved in just 18 minutes at room temperature, and the batteries maintain functionality in temperatures as low as -22°F.


If proven in real-world conditions, the technology could deliver significant improvements in EV range, cold-weather performance, and charging convenience.

Outside of vanity metrics like faster charging and extended range, the semi-solid-state battery could significantly cut down the weight of electric vehicles. Factorial estimates a 200-pound reduction in battery pack mass alone, with potential total vehicle weight savings between 500 and 2,000 pounds.


For example, the Charger Daytona tips the scales at around 5,800 pounds, compared to the 2023 Challenger Hellcat's 4,500 lb curbweight. Factorial is projecting up to $10,000 in savings per vehicle based on weight reduction alone.

Despite technical successes in testing, scaling production remains a hurdle. Factorial CEO Siyu Huang has called current manufacturing conditions “production hell,” with high scrap rates and challenges related to materials. The polymer-based batteries are not fully solid-state yet, but they represent a significant step toward improving battery durability and safety.


Early versions of the technology reportedly cost 10 to 30 times more than conventional lithium-ion cells, despite the promised cost savings. Factorial remains optimistic that mass production will bring costs down over time, but commercial scalability is still, unfortunately, years away.


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Michael Accardi
Michael Accardi

An experienced automotive storyteller and accomplished photographer known for engaging and insightful content. Michael also brings a wealth of technical knowledge—he was part of the Ford GT program at Multimatic, oversaw a fleet of Audi TCR race cars, ziptied Lamborghini Super Trofeo cars back together, been over the wall during the Rolex 24, and worked in the intense world of IndyCar.

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  • F_v138605485 F_v138605485 on Apr 29, 2025

    They should take every penny that they are putting into this and put it into speeding up the platform's adaptation to V8 powertrains. It's perfectly clear there is very little demand for this vehicle in BEV form.

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