How Maxwell Powers Super Charging for Heavy-Duty Electric Trucks

As global logistics and transportation accelerate toward electrification, heavy-duty electric trucks are moving beyond pilot projects and into real-world, long-haul operations. One of the biggest challenges holding the industry back has been charging speed. To keep fleets productive, charging must be faster, more reliable, and scalable to megawatt levels.

This is where Maxwell’s high-power charging technology plays a critical role.

The Three Pillars of Heavy-Duty Truck Supercharging

The future of heavy-duty electric vehicle supercharging is shaped by three clear industry directions.

First, higher power integration.
Supercharging stations are rapidly evolving toward megawatt-class output. By using 60kW power modules as standardized building blocks, charging systems can be flexibly expanded to deliver extremely high power. This architecture makes ultra-fast charging possible, supporting scenarios such as “5 minutes of charging for 100 km of driving,” a key requirement for commercial truck operations.

Second, eco-friendly system synergy.
Supercharging is no longer just about power delivery—it is about energy optimization. Modern charging infrastructure increasingly integrates with source-grid-load-storage-charging systems, enabling renewable energy consumption, peak shaving, and improved grid stability. This approach supports greener operations while reducing overall energy costs for fleet operators.

Third, standardized scaling through MCS.
The emergence of Megawatt Charging System (MCS) standards is accelerating the deployment of interconnected supercharging networks. As standards mature, electric heavy-duty trucks are expanding from closed environments such as ports and mining sites to long-haul transportation routes, marking a shift from policy-driven adoption to market-driven electrification.

Why Liquid-Cooled Charging Makes the Difference

High-power charging demands effective thermal management. Compared with traditional air-cooled solutions, liquid-cooled charging technology offers significant advantages.

A closed-loop liquid cooling system improves heat dissipation efficiency by up to 300%, keeping operating temperatures below 55°C even during continuous high-load charging. This dramatically reduces failure rates and enhances long-term reliability. At the same time, peak conversion efficiency can reach 98.5%, minimizing energy loss and lowering operational costs.

The modular design further enables flexible parallel expansion, making liquid-cooled power modules the ideal foundation for megawatt-level charging stations.

Maxwell’s 60kW Liquid-Cooled Power Modules

At the core of Maxwell’s heavy-duty truck supercharging solution is its 60kW liquid-cooled power module. Designed for high-performance energy conversion, it supports both AC/DC and DC/DC operation with a wide output voltage range of 200V to 1500V and continuous current regulation up to 160A.

This flexibility allows the module to adapt seamlessly to different battery architectures used in electric trucks, buses, and specialized heavy-duty vehicles. Even under extreme load conditions, it ensures stable power delivery, high efficiency, and long-term system reliability.

By combining modular scalability, liquid-cooled thermal management, and MCS-ready design, Maxwell provides a future-proof foundation for next-generation heavy-duty EV supercharging infrastructure—helping fleets charge faster, operate greener, and move further.