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3kW BTMS Battery Thermal Management System with Cooling & Heating Functions for Electric Vehicles

3kW BTMS Battery Thermal Management System with Cooling & Heating Functions for Electric Vehicles

Brand Name: EVLINK
Model Number: BTMS 3KW
MOQ: 1 SET
Price: $1500-2000 per set
Payment Terms: T/T
Supply Ability: 100 sets per 2 weeks
Detail Information
Place of Origin:
CHINA
Cooling Capacity:
3 KW
Heating Capacity:
Optional (External)
Max Input Current(HV):
< 8 A
Operating Temperature:
-35℃~60℃
Refrigerant:
R134a
Coolant:
50%Ethylene Glycol Solution
Noise:
< 75 DB
Protection:
IP67
Quality Warranty:
3 Years
Design Life:
10 Years
COP:
COP>2.0 @L40W18
Pressure Resistance:
3.5 Bar
Wind Direction:
Front To Back
Packaging Details:
carton or wooden case
Supply Ability:
100 sets per 2 weeks
Highlight:

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Product Description
The Battery Thermal Management System (BTMS) for electric vehicles serves as the "central nervous system" that ensures the efficient and safe operation of power batteries. In extreme conditions—such as intense cold or sweltering heat—the BTMS utilizes liquid cooling, direct cooling, or PTC/heat pump circuits to precisely maintain the battery's operating temperature within an optimal range. This not only effectively enhances vehicle range and fast-charging efficiency but also fundamentally mitigates the risk of thermal runaway caused by overheating, making it a core technology for extending battery lifespan and ensuring overall vehicle safety.
Additional Technical Specifications
High Voltage Input
DC 400–750V (High Voltage with Pre-Charge Function)
Low Voltage Input DC 24V (Input Current ≥ 500W)
Pump Capacity 30 L/min @ 130 kpa
Cooling Fans
DC 24V / 1 Pcs
Product Size 555X465X284mm
Product Weight 24kg

Final specifications and protection thresholds should be confirmed according to the selected configuration and approved technical agreement.

Product Description
The 3 kW Battery Thermal Management System (BTMS) is designed to support efficient battery temperature regulation in electric vehicles and other battery-powered applications. By providing controlled thermal management, the system helps maintain suitable battery operating conditions under varying ambient temperatures, supporting battery performance, operational stability, and service life. With a 3 kW heating capacity, it offers a practical solution for low-temperature battery preheating and thermal management integration. Its application-specific configuration can be adapted to different battery pack requirements, making it suitable for electric commercial vehicles, passenger vehicles, and other energy storage applications.
Applications

3kW BTMS Battery Thermal Management System with Cooling & Heating Functions for Electric Vehicles

Electric Trucks
Battery thermal management supports low-temperature preheating and helps maintain suitable battery operating conditions during long-distance transportation and heavy-duty operation.
Electric Buses
BTMS helps manage battery temperature under varying weather conditions while supporting the energy management requirements of daily public transportation and passenger cabin heating.
Electric Construction Machinery
Battery thermal management helps address low-temperature startup requirements and changing operating loads in electric excavators, loaders, and other battery-powered construction equipment.
Frequently Asked Questions
1.What does a high voltage PTC coolant heater do?

It uses electrical power from the vehicle’s high-voltage system to heat circulating coolant. The coolant can then transfer heat to the battery system, cabin heat exchanger or another approved thermal circuit.

2.Is the 15–35kW heater suitable for every electric vehicle?

No. It is intended for projects with relatively high heating demand. The correct configuration depends on operating voltage, required heat output, coolant conditions, installation space and control requirements.

3.Can one heater support both battery and cabin heating?

It may support either application when the vehicle coolant architecture and control strategy allow it. Some vehicles use separate circuits, while others use valves or a shared thermal loop.

4.What information is required to select a heater?

Please provide the vehicle type, operating-voltage range, required heating power, coolant type, expected flow rate, inlet-temperature range, installation space, connector requirements and CAN communication requirements.

5.Can the mounting, connectors or control interface be customized?

Project-specific requirements can be evaluated after the installation drawing, packaging space and electrical interface are provided. The final configuration should be confirmed in the approved drawing and technical agreement.

Request a Product Recommendation

Send us your voltage range, target heating power, coolant conditions, flow rate, installation drawing, control requirements and project quantity. EVLINK will review the information and recommend a suitable configuration for technical confirmation and quotation.