On Thursday, Nyobolt demonstrated the technology in a prototype car at the Millbrook Proving Ground in Bedfordshire, a vehicle-testing facility that has been used to film Top Gear and scenes for James Bond films.
The car used a Lotus Exige chassis retrofitted to include a battery, electric motor and charging port.
The car’s battery was charged from 1.7pc to 80pc in around five and a half minutes, and from 10pc to 80pc – the range at which electric cars are typically charged – in four minutes and 37 seconds.
Charging speeds decline significantly after cars hit 80pc to protect batteries, while the unusually warm weather slowed charging speeds.
Nyobolt says that under cooler conditions it has achieved a 0pc to 100pc charge in roughly six minutes, having publicised the technology last year.
The vehicle features a 35 kilowatt-hour (kWH) battery, smaller and lighter than the majority of EVs on the market today.
Tesla’s Model Y, Britain’s best-selling electric car last year, has a 60kWh battery pack on the cheapest model.
Nyobolt said its smaller batteries meant cars using it would be cheaper to buy and more efficient to run, reducing the weight of the entire vehicle. However, it could make larger batteries with more range in future.
It plans to sell its batteries to sports car manufacturers, where the smaller batteries would provide a weight advantage allowing better handling and performance.
Sai Shivareddy, the company’s chief executive, said Nyobolt would be able to make 1,000 of the batteries next year, which he said could feature in limited edition supercars.
He said: “We believe we are competitive for the ultra-premium end of the segment.”