Fast charging has always been a challenge. It needs high-voltage infrastructure, generates excessive heat, and reduces battery life. But what if an Indian startup figured out a way to charge an EV in just 15 minutes—without using high-voltage systems?
Meet Exponent Energy, a Bengaluru-based company that is rewriting the rules of fast charging.
What Makes Exponent Energy Different?
Unlike global players who rely on high-voltage systems, Exponent Energy cracked the code using regular lithium-ion cells. Their system consists of:
- e^pack battery – A proprietary battery pack designed to handle extreme fast charging.
- e^pump charger – A 15-minute charging station that works with Exponent’s battery pack.
- Liquid cooling technology – Instead of relying on air cooling, Exponent uses water circulation around the cells to keep temperatures in check.
The result? The battery temperature never rises more than 15 degrees Celsius, even during rapid charging. That’s a game-changer for battery health and longevity.
Does Fast Charging Damage the Battery?
One of the biggest concerns with fast charging is battery degradation. Typically, a fast-charged battery loses capacity faster than a slow-charged one. However, Exponent Energy has engineered their battery to last 3,000+ charging cycles—which is on par with standard EV batteries.
Built for India’s EV Landscape
Most ultra-fast charging technologies are expensive and designed for premium EVs. Exponent Energy, on the other hand, is focusing on fleet vehicles, including:
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- Three-wheelers
- Last-mile delivery vans
- Commercial EVs
Their charging stations are already rolling out across major Indian cities. And because they use low-voltage tech, they are more affordable to set up compared to high-voltage ultra-fast chargers.
The Bigger Picture
India has over 2 million electric three-wheelers on the road today. Most of them rely on slow overnight charging. If Exponent’s tech scales, it could transform the commercial EV industry, reducing downtime and increasing operational efficiency.
Read about BYD’s ultra-fast charger and how it works
Final Thoughts
India is not just adopting EVs—it’s innovating. Exponent Energy’s 15-minute charging is proof that homegrown solutions can compete with the best in the world.
What’s next for Exponent Energy? Can they scale this across personal EVs too? Only time will tell. But one thing is clear: fast charging in India just got a whole lot smarter.
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