EV Thermal Testing Equipment: Battery · Motor · Power Electronics Liquid cooling test systems from -40°C to 120°C — designed for EV component validation
Linggong manufactures precision EV battery pack test chillers, motor coolant test systems, and power electronics cooling test units for new energy vehicle R&D, production validation, and third-party certification.
Our liquid-cooled thermal test equipment operates across -40°C to +120°C, with temperature accuracy of ±0.5°C, independent flow and pressure control per channel, and native CAN bus / RS485 / Ethernet interface support — enabling seamless integration with your existing battery cyclers and test benches.
Used by EV manufacturers, battery cell producers, national testing institutes, and university research labs across China and internationally.
EV Battery Pack Test Chillers
Simulate real-world thermal conditions for battery pack, module, and cell testing — from arctic cold starts (-40°C) to high-temperature charge/discharge cycles (+120°C).
● Cooling capacity: 7.5 kW to 80 kW (single unit)
● Temperature range: -40°C to +120°C (high-low temp series)
● Channels: single / dual / triple loop, single or dual zone
● Cooling method: air-cooled (≤20kW) or water-cooled
→ [View EV Battery Pack Test Chillers →]
EV Motor & Drivetrain Coolant Test Systems
Provide precise coolant temperature and flow conditioning for traction motor, reducer, and OBC (on-board charger) endurance and performance tests on dynamometer test benches.
Temperature range: -40°C to +120°C
Precise flow control: 1–30 L/min ±0.2 L/min
Supports: e-motor, gearbox, OBC, DC-DC converter testing
→ [View Motor Coolant Test Systems →]
H2：Power Electronics Cooling Test Systems
Thermal stress testing for inverters, VCU, MCU, and power distribution units — replicate under-hood temperature profiles and verify thermal performance under real driving loads.
Temperature range: 0°C to +120°C (ambient series) or -40°C to +120°C
Interface: CAN, RS485, Ethernet — compatible with major test bench controllers
→ [View Power Electronics Cooling Test Systems →]
Why Linggong？
| Temperature range | -40°C to +120°C standard; custom ranges available |
| Accuracy | ±0.5°C (single zone), ≤±1°C (multi-zone) |
| Interface | CAN bus, RS485, Ethernet — all standard |
| Channels | 1 to 3 independent loops per unit |
| Power range | 7.5 kW to 80 kW, scalable |
| Lead time | Standard models 30 days; custom 45–60 days |
Frequently Asked Questions
Q1: What is the difference between an EV battery test chiller and a climate chamber?
A chiller circulates temperature-controlled coolant through the battery's internal cooling circuit, simulating real in-vehicle thermal conditions with high precision. A climate chamber controls ambient air temperature around the battery exterior. For battery pack validation per GB/T 31484 and IEC 62660, a dedicated chiller is required.
Q2: Can your chillers integrate with third-party battery cyclers?
Yes. All Linggong EV battery test chillers support CAN bus (including CANopen), RS485 (Modbus RTU), and Ethernet (Modbus TCP) protocols, enabling direct communication with cyclers from Arbin, Maccor, BioLogic, Neware, and others.
Q3: What coolant media do you recommend for -40°C testing?
We recommend a 50% ethylene glycol / water mixture (automotive antifreeze grade), which maintains flowability down to -45°C. For applications requiring lower viscosity at very low temperatures, we can recommend alternative heat transfer fluids.
Q4: Do you offer multi-channel units for testing multiple battery packs simultaneously?
Yes. Our dual-channel and triple-loop models allow independent temperature, flow, and pressure control per loop from a single unit — ideal for parallel testing to increase throughput. Custom channel configurations are available.
