Factorial and Mercedes put lithium-metal solid-state EQS on the road
Factorial and Mercedes-Benz began road testing an EQS powered by Factorial FEST solid-state cells.
Evidence notes
- The prototype battery was integrated into a lightly modified EQS after bench testing.
- The pack targeted up to 25% more range at comparable weight and size with passive cooling.
- Mercedes-AMG High Performance Powertrains and Factorial engineers supported the real-world validation programme.
Company context
Factorial Energy develops solid-state and lithium-metal battery cells through its FEST and Solstice platforms. The Nasdaq-listed company works with automotive, drone and robotics partners, and July 2026 customer flight tests with Tulip Tech delivered more than 30% additional UAV range.