Ray Mallock Ltd, also known as The RML Group, is a UK company building ultra-fast cars for competitions since 1984. It manufactured its first petrol-electric-hybrid in 1984, and it reached 190 miles per hour in battery mode at Le Mans. Since then, we understand that RML has begun producing fast-charging lithium-iron-phosphate batteries. In June 2025, the company announced a hypercar battery that charges fully in 16 seconds.
What’s Inside the Ultra-Fast-Charging Hyper Battery?
Interesting Engineering provided an insight into the new super fast-charging RML battery pack, branded as VarEVolt. We understand the company has obtained conformity of production (COP) approval. This confirms that the battery meets the requirements under UN ECE Regulation 100, for components in electric vehicles.
RML is understandably canny about what happens inside their VarEVolt battery. Although we are inclined to suspect it contains lithium-iron-phosphate cylindrical cells in packs, as we understand from SEC Battery that it already has experience of that type of chemistry.
This combination could be ideal for high-performance electric vehicles requiring blistering acceleration. The VarEVolt design with 200C energy-storage capacity, should be able to release all its energy in a third of a minute on demand.
Ray Mallock is a well-established company, producing some of the world’’s highest-performing and most efficient battery-electric, hybrid, and internal combustion power-trains. Their production facility for battery systems, and specialist engine builds, extends across 10,000 square feet.
Do We Need These Hyper-Performance Electric Cars?
A hypercar battery that charges fully in 16 seconds, and releases all its 200C battery-storage in a third of a minute, may sound like a luxury. However, at this point in time, it’s still the noisy internal combustion engines at race tracks that seize public attention.
As long as so many motorists still cling to the roar of those fossil-fuel-guzzling petrol cars, these consumers will remain loyal to internal combustion engines. We hope that the RPL VarEVolt converts at least some of these motorists, by convincing them that the silent, pollution-free thrust of electric cars is better all round.
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