Mercedes EQS with solid state battery manages 750-mile journey on a single charge
Published on Sep 10, 2025 at 7:59 PM (UTC+4)
by Alessandro Renesis
Last updated on Sep 11, 2025 at 11:51 AM (UTC+4)
Edited by
Amelia Jean Hershman-Jones
The new Mercedes EQS achieved 750 miles on a single charge thanks to solid-state batteries.
This is just a prototype for now, but it’s a potential game-changer.
Mercedes has been testing these batteries for a while, and the company is making progress quite quickly.
Just a year ago, with the same type of battery, they ‘only’ did 600+ miles.
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The new Mercedes EQS managed 750 miles on a charge
About two years ago, Mercedes showcased a concept electric car that traveled more than twice the distance of a typical electric car.
Then, a year later, they began testing solid-state batteries in the Mercedes EQS.
The EQS achieved 1,000km(620 miles) on a charge back then, but now Mercedes has managed to beat its own record and traveled over 1,200km (750 miles) on a single charge – which is unprecedented.
At this rate, we’ll have cars that can potentially travel up to 1,000 miles on a charge.
Mercedes is currently using its flagship EV sedan, the EQS, to test these batteries, and the result is outstanding.
According to Mercedes, the same exact model but with a liquid-state battery can ‘only’ achieve about 400-500 miles of range – equivalent to 600 to 800 kilometers.
This is how solid-state batteries work
The new battery packs were designed by Mercedes-Benz and Mercedes AMG High-Performance Powertrains (HPP), a top Formula 1 supplier.
They could be a real game changer when it comes to the future of electric vehicles because they’re more energy dense.
According to Mercedes, you’re looking at up to 25 percent more driving range compared to the same battery weight and size of a corresponding liquid-state battery.
Simplified, solid electrolytes (hence the name solid-state battery) are better conductors for battery components that work in tandem to generate energy.
With the same weight and size, you get more energy.
Solid-state batteries are also easier to cool.
As a result, you get a lot more range for your money – simple.
Alessandro is an automotive journalist with 10 years of experience covering supercars, automotive history, emerging vehicle technology, and luxury transportation. He wrote the first article published on SupercarBlondie.com when the website launched in 2022 and has since built a reputation for insightful reporting across the automotive and transportation industries. His expertise is grounded in hands-on experience. Alessandro has driven every Tesla model ever produced, from the original Roadster to the Cybertruck, and regularly covers the latest developments in electric vehicles and automotive innovation. His passion for transportation extends beyond cars, he has even flown a Boeing 787 Dreamliner simulator in Addis Ababa, Ethiopia. His reporting spans everything from classic American muscle cars and rare automotive discoveries to luxury yachts, private aircraft, high-end watches, and cutting-edge vehicle technology. Known for his deep knowledge of automotive history and ability to uncover the stories behind iconic vehicles, Alessandro brings readers a blend of historical context, technical expertise, and first-hand experience.
