Exponent Energy has unveiled its next-generation charging station, code-named P4, powered by its 15-minute rapid charging technology. With this launch, Exponent sets a new benchmark for EV infrastructure, redefining both design and engineering in India and beyond.
The new charger integrates three key innovations:
- Conventional EV charging stations are bulky and box-like. Exponent’s P4 charging station has been reimagined as a wall, reducing its width to just 400 mm and running along the length of the parked vehicle. This design ensures far better space utilization, which is vital in dense cities.
- EV charging cables and connectors globally are heavy and hard to handle. Exponent’s custom-designed 3-axis cable management system solves that problem. The cable floats, effectively reducing the weight to near zero, and automatically retracts.
- Exponent was the first company in the world to launch offboard battery cooling unveiled in 2023, pumping coolant in through the connector to the vehicle. The new charger adds offboard battery heating, allowing it to pre-heat and cool the battery inside the vehicle, ensuring rapid charging and longer life in any environment.
Space utilization, unwieldy cables and managing battery temperatures are challenges for EV charging around the world. For its new charger, Exponent set out to solve all these problems through intelligent design and engineering – not only for rapid charging, but for any kind of EV charging. Built in India, for India and the world.
Commenting on the launch, Arun Vinayak, Co-founder & CEO of Exponent Energy, said, “At Exponent everything starts from design thinking. Design is not about aesthetics, but about re-thinking everything from a 1st principles basis to deliver better on Engineering and Economics. We made a conscious decision to launch our earlier charger as an MVP to learn from the field about real-world usage and challenges. We brought all those learnings together in the new charger. Charge time and battery life is what we’re known for today, but our larger vision to deliver a 360 degree simplified energy experience – from how easy it is to fin a charger, to the seamlessness and reliability of the mating experience and to how payments just work. This charger is the first step towards that.”
The charger delivers up to 40 kW of power and is already being deployed in cities across India, to be used by OEM partners such as Murugappa Group’s Montra Electric, Omega Seiki Mobility, and others, accelerating rapid adoption across both passenger and commercial EV segments.
Design Engineering
Exponent Energy is a full-stack energy company, building battery packs, charging stations, and custom charging connectors, enabling 15-minute charging times for EVs of any size. It draws on learnings from its earlier chargers, which were launched as a simpler design to prove rapid-charging technology and gain experience on real-world usage.
The result is the P4 charger, designed to make EV charging as intuitive as fuelling. The sleek, wall-like design frees up valuable real estate, vital in a dense urban environment. The floating cables require minimal effort from the driver to plug in, and retract automatically when unlocked. Built to endure India’s toughest conditions, the connector comes in a full-metal shell, and for coolant uses spring-compressed axial seals similar to LPG and CNG guns, and remains functional even underwater.
Beyond the connector, the P4 integrates offboard battery pre-heating for extreme cold weather performance (added to offboard cooling, which Exponent unveiled in 2023), optimized airflow to minimize fan noise in cities, and a revamped internal layout for long-term reliability at scale. Completing the experience, the Exponent app provides users real-time information on charger location and availability, and the ability to charge seamlessly with a monthly pass, no keycards or manual payments needed at the charger.
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