Exponent Energy Launches P4 EV Charger With Faster Charging and New Design

Indian energy-tech startup Exponent Energy has unveiled its next-generation P4 electric vehicle (EV) charging station, engineered to deliver faster charging, improved usability, and space-efficient design. The new charger offers a full EV recharge in around 15 minutes, making it one of the most advanced rapid charging solutions in India. The company has also incorporated significant engineering and design upgrades to overcome common EV infrastructure challenges.

Slim and Space-Efficient Design

The P4 charging station adopts a slim, wall-mounted design with a width of just 400 mm, allowing installations along the length of parked vehicles. This layout eliminates the need for extra space beyond standard parking bays, making it ideal for urban areas where parking and installation space are limited.

Innovative Cable Suspension System

One of the standout features of the P4 is its 3-axis cable suspension system. This mechanism minimizes the physical effort needed to handle the heavy charging cable. The system allows the cable to float while in use and automatically retract once disconnected, reducing wear and tear while enhancing user convenience.

The charging connector is designed with full-metal housing and spring-compressed axial seals — a technology inspired by LPG and CNG systems. This ensures durability and protection, even when the connector is exposed to water, ensuring uninterrupted charging across diverse weather conditions.

Enhanced Thermal Management

Building on its 2023 offboard battery cooling system, Exponent has added an innovative offboard pre-heating function to the P4 charger.

• The cooling system circulates coolant from the charger to the EV battery, preventing overheating during rapid charging.

• The new pre-heating function warms the battery in cold weather conditions, ensuring consistent charging performance and protecting battery health.

This dual thermal management system helps extend battery life while maintaining high charging efficiency across different climates.

Power and Deployment

The Exponent P4 EV charger delivers up to 40 kW of charging power, enabling a complete charge in as little as 15 minutes.

The P4 chargers are already being deployed in multiple Indian cities and are being integrated by leading OEM partners including:

• Montra Electric (Murugappa Group)

• Omega Seiki Mobility

The chargers are designed to support both passenger EVs and commercial fleets, making them versatile across use cases.

Digital Integration and Mobile App

To enhance user experience, Exponent has upgraded its mobile application with real-time updates on:

• Charger locations

• Availability status

• Session progress

The app also introduces a subscription-based charging model, allowing EV users to initiate and complete charging sessions seamlessly, without relying on physical keycards or on-site payment systems.

Company Growth and Expansion

Since its founding in 2020, Exponent Energy has scaled rapidly:

• 2,000+ EVs powered on its network

• 800,000+ charging sessions completed

• 50 million+ kilometers driven using its ecosystem

The company has expanded its operations to five additional Indian cities — Delhi NCR, Chennai, Ahmedabad, Kolkata, and Hyderabad, significantly boosting its national footprint.

Previous Milestones

Exponent has made global headlines with its innovations:

• In August 2024, it launched a 1 MW rapid charging solution for electric buses, a first in India and one of only three such systems worldwide.

• In 2025, the company was included in the World Economic Forum’s Technology Pioneers cohort, recognizing its role in driving innovation across clean energy and EV infrastructure.

CEO’s Statement

Arun Vinayak, Co-founder and CEO of Exponent Energy, highlighted how the P4 charger is built upon real-world learning:

“We started with a minimal viable product to understand actual usage patterns. The new station integrates those insights to improve charging speed, reliability, and ease of use.”

Full-Stack EV Energy Solutions

Exponent continues to function as a full-stack EV energy provider, developing battery packs, charging infrastructure, and proprietary connectors entirely in-house. The P4 charging station marks the next step in its journey to scale urban EV charging infrastructure across India, though no immediate plans for international rollout have been announced.

Conclusion

The Exponent P4 EV charging station represents a major step forward in India’s EV ecosystem, combining rapid charging, advanced design, and intelligent features to address key adoption challenges. With strong OEM partnerships, expanding infrastructure, and global recognition, Exponent Energy is positioning itself as a pioneer in the future of EV charging technology.