An electric car battery that charges in 18 seconds and is ready for mass production.

RML Group, a British engineering company, has received the green light to mass-produce an electric car battery that charges in just 18 seconds. The technology, called VarEVolt, will be unveiled after passing key regulatory certifications on June 2, 2025. The milestone marks a radical shift in the automotive industry, solving one of the biggest bottlenecks for electric vehicles: charging time. The development promises to accelerate the transition to high-performance electric mobility in Europe and beyond.

Full charge in less than half a minute

RML Group's VarEVolt battery can be fully charged in 18 seconds thanks to a 200C capacity, a figure unprecedented in the industry. This charging rate, combined with a power density of 6 kilowatts per kilogram, makes this development the most advanced in the world in terms of speed and energy efficiency.

RML Group is not a new startup: it was founded in 1984 by Ray Mallock, and has a solid track record in motorsport and high-performance technology. The system has already been tested at the Nürburgring and successfully applied to models such as the Czinger C21, a hybrid hypercar that discharged 4,5 kWh in just 40 seconds, a feat that positions VarEVolt far above any commercially used battery to date.

On June 2, the company received the Certification of Conformity of Production (CoP) After passing a rigorous audit by UCA, ensuring that it complies with UNECE Regulation 100, the highest safety standard for electrified powertrains. This recognition marks RML's transition from artisanal prototype development to medium-scale industrial production.

According to James Arkell, group head of powertrain: «This underlines our readiness for serial production contracts. It's no longer a laboratory curiosity or a prototype for tech fairs: it's a technology poised to change the industry.

Energy waterfalls for hypercars

VarEVolt’s power density—6 kW per kilo—has been described as “comparing a gentle stream to Niagara Falls.” This analogy is not exaggerated: compared to the weight and discharge capacities of models like the Tesla Model S, RML's proposal offers a near-instant energy response.

The modular design allows the battery packs to be adapted to different configurations, from ultra-sporty hybrid vehicles to potential conversion kits for thermal supercars. This opens the door to a new generation of electric cars with extreme performance and ultra-fast charging.

The technology was tested under extreme conditions as part of the group's 40th anniversary celebrations, validating its performance in demanding environments such as the Nürburgring. In addition, RML Group has previously provided chassis and battery solutions for the CHILD EP9, who held the world record for an electric lap on that same circuit.

This new battery not only improves charging times: it completely redefines the relationship between power and weight. While many brands focus on autonomy and efficiency, RML has focused its engineering on raw, instantaneous power delivery, a key area for sectors such as motorsports, emergency services, and high-performance transportation.

British production, global ambition

RML is the First British company to certify a battery of this type for volume production, and this milestone could position it as a major player in the competitive global electric vehicle market. As Europe seeks to reduce its dependence on Asian technologies, this initiative demonstrates that British engineering still has a lot to offer.

While other companies are working on solid-state cells or lithium improvements, RML's proposal points to a different paradigm: eliminate waiting. A car that recharges in the same time it takes to fill a tank of gas is no longer a distant dream, but a product ready for market.

Load the future in seconds

Time is the true fuel of the 21st century. And until now, the great weakness of electric vehicles has been precisely that: waiting. Charging for half an hour isn't a technical problem, but a cultural one. What VarEVolt promises is to break down that barrier with a simple equation: full recharge in the time it takes to reach a stoplight.

But there's an even deeper lesson in this breakthrough. While many innovations promise wireless autonomy or eternal batteries, The key is to optimize the key moments of use: charging, starting, response. And that's where British engineering has found a competitive advantage.

Instead of competing to last longer, they've opted for the immediate. And perhaps that's the true paradigm shift in mobility: not just making cars cleaner, but faster in every sense. If electricity was once synonymous with slowness, RML has just made it synonymous with speed.

All photos are from RML Group