The Mercedes-Benz EQS solid-state battery has just set a new benchmark for electric mobility, completing an astonishing 1,205 kilometers on a single charge. Covering three countries, from Stuttgart, Germany, through Denmark, to Malmö, Sweden, this test proves that solid-state technology is ready for real-world conditions.
Record-Breaking Long-Distance Drive
The EQS used in this test retained an impressive 137 km of range at the journey’s end. Remarkably, the vehicle required no charging stops, showcasing efficiency that rivals traditional long-range EVs. By surpassing the previous Vision EQXX record, Mercedes-Benz has demonstrated that its solid-state battery technology is more than just a laboratory concept.
Solid-State Battery Technology
Developed in collaboration with Mercedes-AMG High Performance Powertrains and Factorial Energy, the lithium-metal battery features FEST® technology. Pneumatic actuators manage cell volume changes during charging and discharging, ensuring consistent performance over time. This design increases usable energy content by 25% without adding weight or size compared to the standard EQS battery.
Real-World Validation
Beyond simulations and controlled facility tests, Mercedes-Benz subjected the EQS to diverse conditions on public roads. The route spanned Germany and Denmark using highways A7 and E20, factoring in topography, traffic, and climate with Electric Intelligence to optimize efficiency. This real-world validation underscores the battery’s practicality for everyday long-distance driving.
Performance and Efficiency
The EQS with solid-state battery maintains high performance, including excellent acceleration and stable handling. Passive airflow cooling contributes to efficiency, while the lightweight design ensures the battery does not compromise driving dynamics. Drivers experience both range and comfort without compromise.
Formula 1 Expertise
Mercedes-AMG HPP, the Formula 1 technology center, played a key role in refining this battery. Their racing expertise helped optimize energy management and structural reliability, translating motorsport knowledge into a production-ready EV platform.
The Road Ahead
Markus Schäfer, Chief Technology Officer of Mercedes-Benz, emphasized that this milestone demonstrates the battery’s readiness for series production. Mercedes-Benz aims to bring solid-state technology to customers by the end of the decade, combining long-range capability with advanced comfort and reliability.
Summary
The Mercedes-Benz EQS solid-state battery proves that EVs can achieve unprecedented range and real-world usability. With 1,205 km on a single charge, this test drive represents a major leap forward in electric mobility and sets the stage for future production vehicles that are both efficient and practical.
Disclaimer: Content on this site is for informational purposes only. Vehicle specs, pricing, and availability may change. Always verify details with official sources before making decisions. Opinions are those of the authors.
Source: Mercedes-Benz
