Are You Facing These Thermal Management Challenges?
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1.Slow heating in low-temperature environments
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2. Insufficient power for large vehicle models
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3. Insufficient high-voltage safety
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Risk of electric leakage
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High-voltage insulation issues
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Overheating protection concerns
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Stability issues of the high-voltage system
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4.Limited installation space
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5.Difficulty in thermal management system integration
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Incompatibility with BTMS
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Unstable CAN communication
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Difficulty in control logic matching
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6.Inability to adapt to different vehicle platforms
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Different voltage requirements
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Different power requirements
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Different interface types
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Different communication protocols
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Choose EVLINK !
Leveraging our experienced R&D team and extensive project expertise, we provide customized development and system matching services for high-voltage coolant heaters based on specific operating conditions, delivering safer, more efficient, and more reliable high-voltage PTC liquid heating solutions to ensure optimized thermal management performance and seamless vehicle integration.
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√ High Voltage | √ High-Power Fast Heating | √ OEM/ODM Customization Support
√ Commercial Vehicle Platform Compatibility | √ Thermal Management System Integration
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Vibration Testing
EVLINK has successfully completed comprehensive water circulation and power-on performance testing for its Q Series PTC Coolant Heaters at the laboratory facilities of Shanghai University of Engineering Science (SUES).
Applications
EVLINK Technology’s high-voltage PTC water heater is widely used in electric buses, electric heavy-duty trucks, electric light trucks, mining trucks, and energy storage thermal management systems.
About Us
Evlink was founded in 2020, specializing in the R&D and manufacturing of automotive-grade high-voltage, high-power coolant heaters. Our core team brings over 10 years of experience in the electric vehicle components industry.
In 2025, the company achieved an annual revenue of nearly RMB 200 million, with a workforce of 400 employees, including 80 R&D engineers.
Our core business focuses on electric heating solutions for thermal management systems in commercial vehicles. We offer high-voltage coolant heaters with a voltage range of 600V–1100V and power output from 3kW to 35kW. Our mass-produced models reach a maximum rated voltage of DC 870V and a maximum rated power of 35kW, placing our technical performance at the forefront of the industry.
Our Team
The company operates a modern production base covering 18,000 square meters, equipped with advanced manufacturing facilities and a professional management team.
With 16 years of industry experience, we have established a senior R&D team of over 80 experts, specializing in hardware, software, and system integration.
18000m² | 80+ | 65+ | 30+
Factory Area R&D Engineers Export Countries Production Lines
Certifications & Patents
Our patented technologies reflect our continuous innovation in high-voltage PTC heating systems, ensuring efficiency, safety, and long-term reliability.
Production Process
Backed by a professional R&D team and extensive project experience, we provide customized development and system integration services for high-voltage liquid heaters based on customers’ actual operating conditions, achieving optimized thermal management performance and better vehicle compatibility.
FAQ
Q: How to choose the right PTC water heater?
A: Please provide the following parameters to help with selection:
· Application scenario (bus / heavy-duty truck)
· Intended use (battery heating, cabin heating, regenerative braking energy recovery)
· Operating conditions
· Operating voltage range
· Rated voltage and power
· Battery type and capacity
· Target outlet water temperature
· Ambient operating temperature
· Coolant flow rate
· Installation space
Q: How does a PTC water heater work?
A: The PTC heater works by passing electric current through PTC ceramic material. The material’s resistance increases as temperature rises, automatically adjusting the heating power to maintain a constant temperature.
Q: Which vehicle types is it suitable for?
A: Suitable for most electric buses, electric trucks, and electric construction machinery (excavators, loaders, etc.).
Q: How does it perform in low-temperature environments?
A: PTC heaters remain stable in low-temperature conditions, making them ideal for electric vehicles in cold regions.
Q: What are the core advantages of EVLINK PTC water heaters?
A: High reliability, fast and uniform heating, patented thermal expansion control, moisture protection, and exceptional performance under extreme conditions.
Q: Is customized development supported?
A: Yes. Common customization options include:
· Power rating (3 kW – 35 kW)
· Voltage platform (400 V – 800 V)
· Communication protocol (CAN / EN enable)
· Mounting bracket design and dimensions
· High-voltage and low-voltage connectors
Q: Is OEM/ODM customization available?
A: Yes. Options include:
· Power and voltage customization
· Connector types
· Communication protocols (CAN, etc.)
· Appearance and mounting structure
Q: What is the lead time?
A: Minimum order quantity: 1 unit. Sample delivery within 7 days. Agile development ensures rapid response to changing requirements.
Q: Are certifications available?
A: The product meets automotive-grade standards and can provide certifications such as CE, ISO, and E-Mark.
Q: Are sample tests supported?
A: Yes. Samples can be provided for performance verification and vehicle integration testing.
Q: Does it support full vehicle system integration?
A: Yes. Integration with the vehicle control system is possible via CAN communication.
QC-Liquid heater Series: EVLINK's Efficient High-Voltage Water Heating Solution
- It is equipped with built-in safety features, such as overheat protection and fault detection, to ensure safe operation in EV battery systems.
- Our EV Battery Heater is energy-efficient, minimizing power consumption and maximizing the driving range of electric vehicles.
- It offers customizable heating settings, allowing users to adjust the battery temperature according to specific requirements or climate conditions.
EVLINK's QC Series high-voltage water heater sets a new benchmark in the field of temperature management for electric vehicles. Integrating advanced heating technology with innovative design, it ensures fast, consistent, and reliable heat provision for both the battery and the passenger compartment.
Specification:
| HVCH QC01 Series |
| Heat Output |
15-35kW |
| HV Voltage Range |
DC 350-900V |
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LV Voltage
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DC 24V nominal |
| Efficiency |
> 95 % |
| Controllability Steps |
100W |
| Dimensions |
365*313*123mm |
| Weight |
10kg |
| Temperature Range for Heating |
-40 to 90 ℃ |
| Temperature Range for Ambient |
-40 to 125 ℃ |
| Communication |
CAN or LIN2.1 |
| Dielectric Strength |
3500 V (DC) |
| IP Protection Class |
IP 67 |
| EMC |
ECE R10 Rev. 5 |
| Insulation Resistance |
＞500MΩ |
| Service Life |
10 years or 10,000 heating hours |
Product Features:
Combination of electric heating and coolant for rapid and efficient heat transfer.
Lightweight aluminum casing with a compact and stylish design.
Height below 180MM, making installation easy and versatile.
Incorporates high-quality relays for enhanced safety.
Brushless axial fan design ensures low noise, high efficiency, and a longer lifespan
Application:
The QC series high-voltage water heater offers comprehensive heating solutions for electric vehicles, construction machinery, and large mining trucks. Whether it's warm air inside the vehicle or battery preheating, the QC series guarantees outstanding performance even under extreme climatic conditions.
Our Services:
Direct supply, eliminating intermediary fees.
Significant discounts for bulk orders; trial orders are also welcome.
Responses to all inquiries within 24 hours.
Reasonable and competitive pricing.
We are a manufacturer with ample production capacity.
Committed to meeting customer needs to the fullest.
Competitive Advantage:
Designed with safety and reliability in mind.
Supports OEM customization.
Stable and reliable performance.
Waterproof with excellent insulation properties.
Superior dry heat resistance.
High voltage, high power, intelligent, and highly reliable.
Product Tags:
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Electric Vehicles Ev Battery Heater High Voltage Water Heating Solution Images
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