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High-capacity liquid cooling and PTC heating solution engineered for demanding EV battery thermal management and vehicle-level integration
12kW Battery Thermal Management System
12 kW
Rated Cooling Capacity
8 kW
PTC Heating Capacity
DC 400–860V
High Voltage Input
IP67
Protection Rating
High-Capacity EV Battery Thermal Management
The EVLINK 12kW Battery Thermal Management System is designed for electric vehicle battery platforms with higher thermal loads and demanding cooling requirements.
The system combines 12kW active cooling, 8kW PTC heating, high-flow coolant circulation, intelligent ECU control and CAN 2.0 communication to support precise battery temperature management across changing operating conditions.
With cooling, heating, self-circulation and standby modes, the unit can coordinate battery thermal control across both high- and low-temperature environments
01
12kW Active Battery Cooling
High-capacity liquid cooling supports demanding battery thermal loads
02
8kW PTC Battery Heating
Integrated PTC heating supports battery temperature control in cold conditions
03
50 L/min Coolant Circulation
High coolant flow supports thermal management for larger battery systems
04
PID Temperature Control
Self-developed ECU provides precise thermal control based on system requirements
05
CAN 2.0 Communication
Supports vehicle-level communication, monitoring and coordinated system control
06
Four Operating Modes
Cooling, heating, self-circulation and standby support different thermal conditions
Product Configuration
Integrated components and control functions designed for reliable EV battery thermal management
Unit Model
Installation Method
illustrate
LDC1280HA
Transverse horizontal
Refrigeration Circuit
Compressor, condenser, expansion valve and plate heat exchanger provide active battery cooling
PTC Heating System
Integrated 8kW PTC heating supports low-temperature battery thermal management
Coolant Circulation
The water pump circulates coolant between the BTMS and battery cooling circuit
ECU Control
Integrated ECU coordinates thermal operation using temperature sensor feedback
Integrated Expansion Tank
Built-in expansion tank with liquid-level sensing simplifies coolant system integration
Three Cooling Fans
Three 24V cooling fans support condenser heat rejection
Dimensions & Interfaces
Maximum overall dimensions of the unit
Dimensions 1179× 778× 345mm
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Unit installation dimensions
Mounting Distance 736× 350mm
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Mounting 8 × M8
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Cooling water connection
Coolant Outlet NW26
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Coolant Return NW26
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Drain Port Ø16 mm
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Power interface
High Voltage Input DC 400–860V
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Low Voltage Input DC 24V
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Communication CAN 2.0
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Technical Specifications
Key performance and integration parameters of the 3kW Battery Thermal Management System
| Parameter | Specification | |||
|---|---|---|---|---|
| Model | LDC1280HA | |||
| High Voltage Input | DC 400–860V | |||
| Low Voltage Input | DC 24V, total power ≥1500W | |||
| Communication | CAN 2.0, 250 kbps | |||
| Pump Capacity | 50 L/min | |||
| Cooling Fans | DC 24V / 3 pcs | |||
| Rated Cooling Capacity | 12 kW | |||
| Heating Capacity | 8 kW PTC | |||
| Max. HV Input Current | <26 A | |||
| Operating Temperature | -35°C to 60°C | |||
| Storage Temperature | -40°C to 80°C | |||
| Refrigerant | R134a | |||
| Coolant | 50% Ethylene Glycol Solution | |||
| Pressure Resistance | 3.5 bar | |||
| Weight | 86 kg | |||
| COP | >2.0 @ L40W18 | |||
| Design Life | 10 Years | |||
| Warranty | 3 Years | |||
| Airflow Direction | Front to Back | |||
| Protection Rating | IP67 | |||
| Operating Noise | <75 dB |
Electrical interface
Unit High-Voltage Interface
(Cable: 6mm²)
Unit side: Amphenol PL082X-60-6
Client side: Amphenol PL182X-61-6
PIN 1：HV+
PIN 2：HV-
End-insertion mounting
Unit Low-Voltage
Interface
(Cable: 4 mm²)
Unit side: Amphenol PL082X-60-4
Client side: Amphenol PL182X-61-4
PIN 1：HV+
PIN 2：HV-
End-insertion mounting
Unit Communication
Interface
(Cable: 0.5 mm²)
Unit side: Tyco AMP
282108-1
Harness side: Tyco AMP
282090-1
PIN 1: 24V+
PIN 2: GND
PIN 3: Reserved
PIN 4: Reserved
PIN 5: CAN_H
PIN 6: CAN_L
Unit lead wire length:
200mm
Unit Commissioning
Interface
(Cable: 0.5 mm²)
Unit side: Tyco AMP
282104-1
Client side: Tyco AMP
282080-1
PIN 1：CAN_H
PIN 2：CAN_L
Unit Commissioning
Reserved
Coolant Port
DIN interface (optional)
VDA quick-connect (optional)
ACTIVE BATTERY COOLING
12kW Battery Liquid Cooling System
During battery charging and discharging, heat generated by the battery cells is transferred through the battery cold plate into the coolant loop. The circulation pump moves the heated coolant toward the plate heat exchanger.
Inside the heat exchanger, refrigerant absorbs heat from the coolant and reduces coolant temperature. The absorbed heat is then transferred through the refrigeration circuit and released to the surrounding environment by the condenser.
- 01 12kW Rated Cooling
- 02 50 L/min Coolant Flow
- 03 Plate Heat Exchanger
- 04 Active Refrigeration Cooling
8kW PTC Heating for Battery Thermal Management
When battery temperature falls below the required control range, the integrated PTC heating system provides up to 8kW rated heating capacity. The PTC function works as part of the overall BTMS control strategy to support battery temperature regulation under low-temperature operating conditions.
Combined cooling and heating capability enables the 12kW BTMS to respond to different thermal demands throughout vehicle operation.
- 01 8kW Heating Capacity
- 02 Integrated PTC Heater
- 03 CAN-Based Control
- 04 Low-Temperature Thermal Management
How It Works
How Does a 12kW Battery Thermal Management System Work?
During battery operation, heat generated by the cells is transferred to the coolant circuit through the battery cold plate. The circulation pump carries the heated coolant to the plate heat exchanger, where the refrigerant absorbs the heat and lowers the coolant temperature. The absorbed heat is then released to the ambient environment through the condenser
01
Battery Heat Transfer
Heat from battery cells is transferred to coolant through the battery cold plate.
02
Coolant Circulation
The circulation pump carries heated coolant through the battery cooling loop.
03
Plate Heat Exchange
Coolant transfers heat to the refrigerant through the plate heat exchanger.
04
Refrigeration Cooling
Refrigerant absorbs coolant heat and lowers coolant temperature.
05
Condenser Heat Rejection
The condenser releases absorbed heat into the surrounding environment.
06
PTC Heating & ECU Control
When heating is required, the PTC heater operates under system control to maintain the required battery temperature.
Applications
Electric Mining Trucks
Suitable for evaluation in heavy-duty electric vehicle platforms where battery thermal loads and operating conditions require higher cooling capacity
Electric Buses
Can be evaluated for electric bus battery platforms requiring higher-capacity liquid cooling and controlled battery heating
Electric Trucks
Supports vehicle projects with larger battery systems and higher battery thermal management requirements
Special-Purpose EVs
Designed for vehicle platforms requiring high-capacity cooling, PTC heating and CAN-based thermal control
Engineering & Customization
Engineered Around Your Vehicle Platform
Different EV platforms require different voltage ranges, coolant interfaces, installation layouts and control strategies. EVLINK provides engineering support for thermal matching, vehicle integration, CAN communication and installation requirements.
Selection Guide
Is a 12kW Battery Thermal Management System Right for Your Project?
BTMS selection should be based on the calculated thermal load of the battery system rather than vehicle type alone. Engineers should evaluate cooling and heating demand, battery voltage, coolant flow, installation space, ambient conditions and communication requirements before selecting the final system
Battery Cooling Load
Confirm continuous and peak battery thermal loads before selecting 12kW cooling capacity.
Heating Requirement
Evaluate whether up to 8kW PTC heating matches low-temperature operation requirements.
Voltage Platform
Verify compatibility with the DC400–860V high-voltage architecture.
Coolant Flow
Confirm whether the vehicle coolant circuit matches the 50 L/min pump requirement.
Installation Space
Allow sufficient space for the 1179 × 778 × 345 mm unit and service access.
CAN Integration
Confirm CAN communication and control requirements before prototype integration
If your calculated continuous cooling load exceeds the rated 12kW capacity, a higher-capacity thermal management solution should be evaluated.
OEM / ODM
OEM & ODM Engineering Support
From initial technical evaluation to prototype development and vehicle integration, EVLINK supports OEM and ODM projects with flexible engineering solutions tailored to specific thermal management requirements.
Technical Evaluation
→
Prototype Development
→
Validation
→
Mass Production
FAQ
12kW Battery Thermal Management System FAQs
What is a 12kW Battery Thermal Management System?
A 12kW Battery Thermal Management System is an active battery temperature control unit designed to circulate and condition coolant within an EV battery cooling circuit. The LDC1280HA combines 12kW rated cooling, 8kW PTC heating and intelligent ECU control.
Does the 12kW BTMS provide both cooling and heating?
Yes. The LDC1280HA provides 12kW rated cooling capacity and 8kW PTC heating capacity, supporting both cooling and heating operating modes.
What high-voltage input does the 12kW BTMS support?
The specified high-voltage input range is DC400–860V. Low-voltage input is DC24V.
Does the 12kW BTMS support CAN communication?
Yes. The system supports CAN 2.0 communication at 250 kbps for system communication and control.
What coolant does the 12kW BTMS use?
The specified coolant is a 50% ethylene glycol solution, while the refrigeration circuit uses R134a refrigerant.
What is the operating temperature range?
The specified operating temperature range is -35°C to 60°C, with a storage temperature range of -40°C to 80°C.
How do I know whether a 12kW BTMS is suitable for my vehicle?
Selection should be based on the battery thermal load, heating requirement, high-voltage platform, coolant flow, installation space, ambient conditions and CAN communication requirements. Engineering evaluation is recommended before final selection.
START YOUR PROJECT
Need a 12kW Battery Thermal Management System for Your EV Project?
Share your battery voltage, thermal load, heating requirement, coolant flow, installation space and CAN communication requirements with our engineering team.
Provide your battery voltage, thermal load and installation requirements to receive an engineering evaluation.
STILL HAVE A QUESTION?
Discuss Your EV Thermal Management Requirements
Share the platform, voltage, thermal target, installation space, coolant or refrigerant, connectors, CAN requirements, validation stage and timing.