Empowering Green Railways | Fosen Technology's High-Safety Battery System Ushering in a New Era of "Oil-to-Electric" Locomotives

I. Designed Exclusively for Rail Operating Conditions, Robust Performance for Harsh Environments

Wide Temperature Range Operation

Charging: 0~65℃ | Discharging: -36~65℃. Unaffected by extreme cold or heat, suitable for diverse climatic conditions nationwide.

High-Voltage & High-Energy Platform

Nominal voltage: 618.24V, rated capacity: 1208Ah, energy storage up to 746.83kWh, meeting the long-duration, high-load operation demands of locomotives.

Dual-Gun Fast Charging for Efficient Energy Replenishment

Supports adaptive charging with single gun 500A / dual guns 1000A. Charging from 20% to 90% in only 50 minutes, effectively ensuring operational efficiency.

Industrial-Grade Protection, Stable & Reliable

Battery box IP68, high-voltage box IP67, key components all above IP65 rating. Dustproof and waterproof, adaptable to harsh working conditions.

II. Multiple Safety Defenses to Build a Solid Foundation for Locomotive Operation Safety

Excellent cell consistency with extremely low failure rate

Static voltage difference < 12mV, 0‑kilometer failure rate < 66.26 ppm.

Non-flammable technology for battery systems

No thermal propagation even under extreme heating of a single cell (400℃); the battery only emits slight smoke without catching fire, fundamentally eliminating the risk of thermal runaway.

Short-circuit prevention + branch circuit fusing design

Each battery pack branch is equipped with an MSD fuse, which quickly cuts off the faulty circuit in case of short circuit to prevent accident escalation.

CTP integration technology for a more compact structure

Modular design is eliminated to improve space utilization; components are reduced by 40%, and system energy density exceeds 155 Wh/kg.

Flame-retardant materials + physical isolation design

All non-metallic parts inside the battery cabinet are flame-retardant; the battery compartment and electrical compartment are independently isolated, providing dual protection for system safety.

High-voltage interlock + manual service switch

Automatic power-off during maintenance ensures operator safety and meets the maintenance requirements of industrial scenarios.

Intelligent dehumidification and anti-condensation

Desiccants are installed inside the battery pack, and an automatic dehumidification device is equipped in the cabinet to control humidity in real time and avoid insulation degradation.

III. Intelligent BMS System for Fault Classification and Precise Management

High-precision real-time monitoring

The sampling accuracy of voltage, current and temperature ranks among the top in the industry, with reliable data and timely response.

Four-level intelligent fault protection mechanism

Layered protection from warning, power reduction, power-off request to emergency contactor disconnection, ensuring the safety of the system and the vehicle.

Conclusion

With its high performance, high safety and high adaptability, the battery system of Fosheng Technology has become the preferred power solution for many rail locomotive "oil-to-electric" projects. We not only provide batteries, but also offer customers full-process technical support and customized services, helping traditional locomotives transform into green, intelligent and efficient ones.

Fosheng Technology — providing durable and safe green energy for the transformation of rail power.