India’s electric mobility story is often told through the lens of passenger cars and highways, but the real engine of adoption is far more grounded, literally. It runs through our cities, our narrow lanes, our logistics corridors, and our last-mile networks. It is driven by L3 and L5 vehicles, e-rickshaws, cargo loaders, and passenger three-wheelers that form the backbone of urban and semi-urban transport. Yet, while this segment leads in volumes and impact, it has been structurally underserved by the evolution of public charging infrastructure.
What is often missed in this conversation is the intensity of utilization in this segment. Unlike passenger EVs that may charge once a day, L3 and L5 vehicles operate on high daily run cycles, often requiring multiple charging top-ups within a single working day. This creates a fundamentally different demand pattern, one that is not just about availability of chargers, but about accessibility, turnaround time, and compatibility. Infrastructure that does not align with these behavioural realities becomes functionally irrelevant, no matter how advanced it appears on paper.
At the heart of this disconnect lies what I call the voltage gap. Most of India’s light electric vehicle ecosystem operates on battery platforms between 48V and 120V. In contrast, the public fast-charging infrastructure, particularly as it aligns with global standards, is rapidly moving toward high-voltage systems in the range of 200V to 1000V, primarily built around CCS2 protocols. This divergence has created a fundamental mismatch. The infrastructure exists, but a large segment of vehicles simply cannot access it.
From an engineering standpoint, this is not a minor incompatibility, it is a structural disconnect. High-voltage chargers are designed for entirely different current profiles, insulation requirements, and communication protocols. Directly interfacing a low-voltage battery with such systems without intelligent mediation can lead to inefficiencies, overheating, or even long-term battery degradation. This is precisely why the industry has struggled to find a scalable bridge between these two ecosystems.
For years, the industry has attempted to solve this by building parallel ecosystems, separate chargers, separate connectors, and separate standards for different vehicle classes. But this approach is neither scalable nor economically viable. It fragments investments, increases capital burden, and ultimately slows down adoption. The real solution lies not in duplication, but in unification. This is where the concept of a universal fast-charger for sub-200V platforms becomes transformative. The idea is simple in principle but complex in execution, where we create a system where a high-voltage public charger can intelligently adapt to safely and efficiently charge low-voltage vehicles without compromising performance or safety.
The deeper challenge here is not just technological, but architectural. Traditional charging infrastructure has been built with a one-charger-one-vehicle-type mindset. Moving to a universal system requires rethinking the charger as a flexible energy node rather than a fixed-output device. It must be capable of dynamically responding to different voltage, current, and communication requirements in real time, without compromising efficiency or safety margins.
Servotech has worked on engineering a patented solution that directly addresses this challenge. The core of this innovation lies in a reconfigurable DC architecture that enables dynamic voltage conversion. It allows a standard CCS2 high-voltage output to be stepped down in real time, enabling compatibility with low-voltage battery systems, including those aligned with GB/T and Bharat DC 001 standards.
At a technical level, this involves a multi-stage power conversion process. The incoming high-voltage DC is first stabilized and conditioned, following which it is passed through a controlled DC to DC conversion stage that dynamically adjusts output based on the battery’s requirement. This is not a static step-down, it is a continuously regulated process that responds to changes in battery state-of-charge, temperature, and load conditions. The result is a charging curve that mimics native low-voltage charging behaviour, even when sourced from a high-voltage charger.
What makes this architecture particularly powerful is that it does not treat low-voltage charging as a secondary or compromised function. Instead, it integrates advanced power management systems that ensure stable energy transfer, optimized current flow, and minimal stress on battery systems. The conversion is not just electrical, it is also communicative. Through CAN-based protocols, the system establishes a dialogue between the charger and the vehicle’s battery management system, ensuring that charging parameters are continuously aligned with the battery’s health and capacity.
This communication layer is where much of the real intelligence resides. By integrating protocol compatibility within the converter, we can provide for seamless interaction between CCS2 infrastructure and GB/T-aligned or custom low-voltage BMS systems. Since both operate on CAN communication, the system effectively translates and aligns data packets in real time, ensuring that the charger understands the vehicle it is serving. This eliminates the need for separate communication stacks and enables true interoperability at both the hardware and software level.
This brings us to the idea of interoperability, which is often discussed but rarely implemented in a meaningful way. True interoperability is not just about physical compatibility, it is about creating a seamless experience where different technologies can coexist without friction. Our approach enables a single charging platform to serve both high-voltage and low-voltage vehicles using the same infrastructure. A CCS2 gun can charge a passenger car, while through our converter technology, it can also safely charge an e-rickshaw or a three-wheeler.
Urban charging hubs, fleet aggregation points, and logistics depots no longer need to allocate separate bays or infrastructure for different vehicle categories. A single charger becomes a shared resource, dynamically adapting to demand. This not only optimizes space utilization, which is a critical constraint in Indian cities, but also simplifies operations and maintenance.
This is not just an engineering marvel but an economic achievement. By offering charger-sharing on a single platform, we significantly improve asset utilization. A 120 kW charger, for instance, can be equipped with dual guns, allowing simultaneous charging of different vehicle classes. Instead of idle capacity during off-peak hours, operators can serve a broader mix of vehicles, increasing throughput and accelerating return on investment. This is particularly critical in urban-commercial environments where demand patterns are highly variable.
Another dimension that often goes under-discussed is the impact on the grid. High-capacity charging infrastructure is typically associated with significant grid load and capital expenditure. However, by designing modular and grid-friendly systems, we can distribute load more intelligently. Sub-200V charging does not require the same intensity of power draw as high-voltage systems, and when integrated into a shared infrastructure, it allows for more balanced energy distribution. In many ways, this approach helps solve what I refer to as grid lock, where infrastructure exists, but its utilization is constrained by uneven demand and high capex requirements.
Safety and reliability, of course, are non-negotiable, especially in Indian conditions, where environmental factors, usage patterns, and infrastructure variability present unique challenges. Our systems are designed with robust thermal management to handle high temperatures and continuous charging usage cycles. Advanced isolation mechanisms ensure that voltage conversion does not introduce risks, while multiple layers of protection safeguard both the vehicle and the charger. The integration with the vehicle’s BMS ensures that charging is not just fast, but also safe and battery-friendly.
We also factor in real-world conditions such as voltage fluctuations, dust exposure, and inconsistent grid quality. Protective systems are designed to handle transient spikes, ensure grounding integrity, and maintain operational continuity even under sub-optimal conditions. This is critical for ensuring uptime in high-usage environments where downtime directly impacts livelihoods.
At the same time, we must recognize that technology alone does not drive adoption, economics does. The concept of charging as a service becomes particularly relevant in this context. By reducing the need for parallel infrastructure and improving utilization of existing assets, we lower the barriers to entry for operators. This de-risks investments and makes the business case for charging infrastructure far more compelling. It also creates opportunities for new business models, where charging is not just a utility, but a service layer integrated into broader mobility ecosystems.
From a product development perspective, this shift is already influencing how we design our next generation of chargers. Our LEVDC (Type-6) and LECCS (Type-7) chargers, currently undergoing field trials, are built specifically for dense urban environments. They are optimized for lower power requirements, shorter dwell times, and high-frequency usage. Unlike highway chargers, which prioritize ultra-fast charging and long-distance travel, these systems are designed for accessibility, efficiency, and scalability within city ecosystems.
Looking ahead, the implications of this approach are far-reaching. Standardization will play a critical role in ensuring that interoperability becomes the norm rather than the exception. As more players align around unified protocols, the ecosystem will become more cohesive and efficient. Policy frameworks will also need to evolve in parallel, encouraging unified infrastructure development rather than fragmented deployments. Incentivizing interoperable systems can accelerate adoption while ensuring that investments are future-proof.
There is also significant potential in integrating these systems with emerging technologies such as vehicle-to-grid (V2G). While still in its early stages, the ability for vehicles to not just consume but also supply energy could redefine how we think about energy flows. In such a scenario, the role of intelligent, adaptable charging infrastructure becomes even more critical. When low-voltage fleets are aggregated at scale, they represent a distributed energy resource that can be leveraged for grid balancing in the future. Intelligent chargers can act as control points, enabling bidirectional energy flow when the ecosystem matures.
Perhaps the most profound shift, however, will be behavioural. As access to charging becomes more seamless and inclusive, we will see a transition from range anxiety to range confidence. Users will no longer have to think in terms of vehicle-specific infrastructure, they will expect universal access. This shift in mind set is as important as any technological breakthrough. In many ways, the sub-200V breakthrough is not just about solving a technical problem, it is about rethinking the fundamentals of how we build and scale infrastructure. It is about moving from fragmentation to integration, from exclusivity to inclusivity, and from isolated systems to interconnected ecosystems.
India’s EV transition will not be defined by how quickly we adopt global standards, but by how effectively we adapt them to our unique context. The universal fast-charger is a step in that direction, bridging gaps, unlocking access, and enabling a more unified, efficient, and sustainable future for mobility.
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