Battery Thermal Management Systems (BTMS) for Commercial Electric Vehicles
We provide independent battery thermal management systems (BTMS) for commercial electric vehicles, including electric buses, trucks, logistics vehicles, and specialty vehicles. Designed for demanding commercial EV applications, our BTMS solutions ensure reliable battery temperature control under diverse driving, charging, and environmental conditions.
Our liquid-cooled battery thermal management systems cover a cooling capacity range from 2 kW to 12 kW and support both roof-mounted and skirt-mounted configurations, enabling flexible integration across different vehicle platforms and battery pack layouts.
Built with an integrated architecture combining refrigeration, coolant circulation, electronic control, and optional heating functions, our modular BTMS solutions deliver stable thermal performance, improved battery reliability, and simplified system integration for OEMs and vehicle manufacturers.
Modular Platform Design
Our battery thermal management system adopts a modular architecture integrating cooling and heating functions within optimized dimensions. Standardized design and component commonality enable flexible configuration for different vehicle platforms and simplify product adaptation.
Intelligent CAN-Based Control
The integrated control system communicates with the vehicle BMS through CAN protocols to monitor battery conditions and adjust thermal performance automatically. Adaptive operation strategies help maintain stable battery temperatures while improving system efficiency.
Optimized Serviceability Design
The BTMS structure is designed with optimized component layout, accessible interfaces, and simplified maintenance points. This improves service efficiency and supports reliable operation throughout the vehicle lifecycle.
Battery Thermal Management Systems Portfolio
01
Roof-Mounted Battery Thermal Management System
Our roof-mounted battery thermal management systems are designed for electric buses and commercial vehicles where maximum cabin space utilization and convenient system maintenance are required. By installing the battery thermal management unit on the vehicle roof structure, the system provides efficient thermal performance while minimizing impact on vehicle interior layout.
The elevated installation position improves airflow conditions around the thermal unit and reduces dust accumulation, supporting stable heat exchange performance. The optimized mounting structure also ensures consistent coolant circulation and improved temperature uniformity across the battery system.
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Cooling Capacity
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Typical Applications
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High-Voltage Input
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Refrigerant Type
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Power Consumption
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|---|---|---|---|---|
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2-4 kW Variable frequency adjustable
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Electric bus
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DC 350-750 V
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R410a
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≤1.6 kW
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4-6 kW Variable frequency adjustable
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Electric bus
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DC 350-750 V
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R410a
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≤2.7 kW
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6-8 kW Variable frequency adjustable
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Electric bus
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DC 350-750 V
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R410a
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≤3.6 kW
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8-10 kW Variable frequency adjustable
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Electric bus
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DC 350-750 V
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R410a
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≤4.6 kW
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10-12 kW Variable frequency adjustable
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Electric bus
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DC 350-750 V
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R410a
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≤5.6 kW
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Solution Advantages
Easy Installation and Maintenance
The detachable roof mounting structure simplifies BTMS installation, inspection, and maintenance, improving assembly efficiency and reducing service complexity.
Efficient Heat Dissipation Performance
The elevated installation position helps reduce dust accumulation and improves airflow conditions around the unit, supporting stable heat exchange efficiency.
Space-Saving Vehicle Integration
Roof-mounted installation does not occupy passenger or cargo space, allowing greater flexibility for vehicle interior and battery layout design.
Improved Temperature Uniformity
The stable mounting surface helps maintain consistent coolant circulation through the system, contributing to more uniform battery temperature management.
* For additional configurations and customized solutions, please contact us at: contact@jenwyntech.com
02
Skirt-Mounted Battery Thermal Management System
Our skirt-mounted battery thermal management systems are designed for commercial EV applications where lower vehicle center of gravity and optimized vehicle packaging are important considerations. Installed within the vehicle chassis or skirt area, the system provides efficient thermal management while reducing impact on roof structure design.
By positioning the thermal management unit closer to the battery pack, skirt-mounted configurations help optimize system layout, maintain vehicle stability, and preserve space for roof-mounted equipment such as HVAC units and roof windows.
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Cooling Capacity
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High-Voltage Input
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Refrigerant Type
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Power Consumption
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Weight
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Dimension
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|---|---|---|---|---|---|
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3-3.5 kW
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DC 400-750 V
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R134a
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≤1.7 kW
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33±3 kg
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L600*W410*H304.5 mm
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4.5-5 kW
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DC 400-750 V
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R134a
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≤2.5 kW
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35±3 kg
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L680*W430*H248 mm
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5 kW
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DC 400-750 V
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R134a
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≤2.4 kW
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40 kg
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L643*W599*H383 mm
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6 kW
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DC 400-750 V
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R134a
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≤3.5 kW
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38±3 kg
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L798*W420*H282..5 mm
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|
7 kW
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DC 400-750 V
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R134a
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≤3.5 kW
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38±3 kg
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L798*W420*H282.5 mm
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|
8 kW
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DC 400-750 V
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R134a
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≤4.0 kW
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43±3 kg
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L820*W435*H296.5 mm
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10 kW
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DC 450-750 V
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R134a
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≤5.0 kW
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48±3 kg
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L870*W520*H296.5 mm
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|
11 kW
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DC 450-750 V
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R134a
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≤5.0 kW
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55±5 kg
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L890*W540*H304.5 mm
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12 kW
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DC 450-750 V
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R134a
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≤5.0 kW
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52±5 kg
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L890*W540*H304.5 mm
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2-4 kW Variable frequency adjustable
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DC 200-420 V
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R134a
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≤1.6 kW
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-
|
-
|
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4-6 kW Variable frequency adjustable
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DC 200-420 V
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R134a
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≤2.7 kW
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-
|
-
|
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6-8 kW Variable frequency adjustable
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DC 200-450 V
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R134a
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≤3.6 kW
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-
|
-
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* For additional configurations and customized solutions, please contact us at: contact@jenwyntech.com
Solution Advantages
Lower Center of Gravity and Improved Stability
The skirt-mounted configuration reduces the load on the vehicle roof structure and lowers the vehicle center of gravity, improving driving stability and overall vehicle safety.
Flexible Vehicle Packaging
The underbody installation design avoids interference with roof-mounted HVAC systems, skylights, and other roof components, providing greater flexibility for vehicle layout.
Shorter Thermal System Layout
The installation position closer to the battery pack helps optimize coolant routing, reduce system complexity, and support efficient thermal management.
Manufacturing and Quality Assurance
We have established comprehensive manufacturing, testing, and quality assurance capabilities for battery thermal management systems and electric vehicle thermal management components. Through integrated product development, validation testing, and automotive-grade manufacturing processes, we ensure consistent performance, reliability, and quality throughout the product lifecycle.
Our manufacturing operations are managed under an IATF 16949-based quality management system, with strict process control covering incoming inspection, component traceability, assembly processes, functional testing, and final product validation. Dedicated production lines and specialized testing equipment enable efficient and reliable production of BTMS solutions for commercial electric vehicle applications.
Engineering & Validation Capability
We provide comprehensive thermal management development and validation capabilities, including system simulation, thermal performance testing, and reliability evaluation. These capabilities support BTMS verification from early-stage design validation through production readiness.
Manufacturing Capability
Dedicated assembly and testing lines are designed for electric vehicle thermal management products, covering refrigerant system assembly, coolant circuit testing, electrical verification, and functional performance inspection to ensure consistent product quality.
Automotive Quality & Scalable Production
Supported by automotive-oriented quality management processes and scalable production facilities, Jenwyn Tech ensures reliable mass production of thermal management systems with an annual capacity of 50,000 BTMS units and components.
Engineering Support for BTMS Integration
Successful EV projects require effective technical communication between vehicle developers and system suppliers. We provide technical support for our EV systems, including product documentation, interface information, communication protocols, and engineering assistance during system integration.
Our support helps customers better understand system requirements, address technical issues during development and testing, and improve integration efficiency throughout the project lifecycle.
Our support includes:
- Review EV system configurations and identify potential risks
- Discuss vehicle requirements, interfaces, and application conditions
- Provide 3D and STEP files for layout and mechanical fit assessment
- Support sample installation, commissioning, and validation
- Support fault diagnosis and system troubleshooting
- Provide continuous technical communication throughout the project
Frequently Asked Questions
Our battery thermal management systems are designed for a wide range of commercial electric vehicles, including electric buses, trucks, logistics vehicles, specialty vehicles, and other high-load EV applications. The modular BTMS platform supports different vehicle structures and battery system requirements.
Our liquid-cooled battery thermal management systems cover a cooling capacity range from 2 kW to 12 kW, providing flexible options for different battery capacities, vehicle sizes, and operating conditions.
Jenwyn Tech provides both roof-mounted and skirt-mounted BTMS configurations. Roof-mounted systems are suitable for applications requiring easy maintenance and efficient space utilization, while skirt-mounted systems help reduce vehicle center of gravity and optimize vehicle packaging.
Our BTMS solutions support CAN communication with the vehicle BMS, enabling the system to receive battery temperature information, adjust operating modes, and provide system status feedback for coordinated thermal management.
Yes. Depending on the application requirements, BTMS solutions can integrate heating modules to support battery thermal conditioning in low-temperature environments, helping maintain suitable battery operating temperatures.
Yes. We provide configurable BTMS solutions based on vehicle requirements, including cooling capacity, installation configuration, voltage platform, battery size, and system interface requirements. For more details, please contact us at contact@jenwyntech.com
To recommend the appropriate BTMS configuration, customers typically provide information including:
- Vehicle type and application scenario
- Battery capacity and voltage platform
- Required cooling capacity
- Installation space and mounting requirements
- Operating environment and temperature range
- Communication interface requirements
Our engineering team can then assist with product selection and application matching. You may send your detailed inquiry to contact@jenwyntech.com
Typical production lead time is approximately 60 days, depending on product configuration, order quantity, and production scheduling. Please contact our sales team for project-specific delivery schedules.