UK’s RML Group to mass-produce VarEVolt, an EV battery that charges in 18 seconds. Discover how this breakthrough could transform electric vehicles
In a groundbreaking development for the electric vehicle (EV) industry, UK-based RML Group has received approval to mass-produce its VarEVolt battery, which boasts the world’s highest power density and can fully recharge in just 18 seconds. This innovation could redefine EV performance and charging convenience, positioning the UK as a leader in next-generation battery technology.
VarEVolt: A Game-Changer for Electric Vehicles
The VarEVolt battery, developed by RML Group, is designed to deliver unparalleled power and speed. With a C rating of 200, it can charge or discharge in approximately 18 seconds, far surpassing conventional EV batteries like the Porsche Taycan’s, which takes 12–15 minutes. The battery’s 6 kilowatts per kilogram power density makes it ideal for high-performance applications, such as electric hypercars.
RML Group’s modular design allows manufacturers to customize the battery for range, power, or a balance of both, catering to diverse EV models. The battery has already proven its capabilities in the hybrid hypercar Czinger C21, dissipating 4.5 kWh of energy in just 40 seconds.
Certification Paves the Way for Mass Production
On June 2, 2025, RML Group secured Conformity of Production (CoP) certification, a critical milestone that greenlights large-scale manufacturing. This approval ensures the VarEVolt meets stringent regulatory standards, enabling partnerships with EV manufacturers worldwide. James Arkell, Head of Powertrain at RML, stated, “This certification underlines our readiness to move from prototyping to supporting larger production contracts.”
RML Group is poised to scale production rapidly, collaborating with original equipment manufacturers (OEMs) to integrate VarEVolt into next-generation EVs. The company’s proprietary cooling systems and power management software enhance the battery’s durability and efficiency, addressing common concerns about charging time and range.
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Implications for the EV Industry
The VarEVolt battery could transform the EV landscape by eliminating one of the biggest barriers to adoption: long charging times. Traditional lithium-ion batteries often take hours to recharge, but VarEVolt’s ultra-fast charging promises greater convenience for drivers. Its potential to rival the performance of gasoline-powered vehicles makes it a compelling option for high-performance EVs.
While initially targeted at hypercars, the technology could eventually scale to mainstream EVs, reducing reliance on critical materials like lithium and cobalt. This aligns with global efforts to diversify battery materials, as seen with sodium-ion advancements in China.
UK’s Role in the Global EV Race
RML Group’s breakthrough strengthens the UK’s position in the global EV battery race, where Europe, China, and the US are vying for dominance. With lithium demand outpacing supply, innovations like VarEVolt could help address resource constraints while boosting energy sovereignty.
As of 2025, the UK has over 1.5 million EVs on its roads, driven by rising fuel costs and policies like the Zero Emission Vehicle mandate. VarEVolt’s mass production could further accelerate EV adoption, offering cost savings and environmental benefits.
What’s Next for RML Group?
RML Group is already working with OEMs to develop advanced batteries with superior performance. While the VarEVolt’s 18-second charge time is a headline-grabber, its impressive range and durability make it a versatile solution for long journeys. CEO Paul Dickinson told Autocar, “We can focus on range, power, or balance the two, depending on the vehicle.”
As the EV industry evolves, RML Group’s innovation could set a new standard for battery technology, challenging competitors like China’s superfast charging systems, which claim 6-minute full charges.
Conclusion
The RML Group’s VarEVolt battery is a monumental leap forward for electric vehicles, combining lightning-fast charging with high power density. With mass production now approved, this UK innovation is set to electrify the automotive world, from hypercars to potentially mainstream EVs. Stay tuned to The Interview Times for the latest updates on this game-changing technology.