On September 9, 2025, Mercedes-Benz officially announced that its EQS, equipped with a solid-state battery prototype, completed a real-world test from Stuttgart, Germany, to Malmö, Sweden, covering the entire 1,205km without recharging, with a remaining range of 137km. This test route, which involved a detour through complex terrain (a 19% increase in range compared to the standard 1,014km), demonstrated the stability and energy density advantages of solid-state batteries under real-world road conditions.
2025-09-10