400V lithium battery cabinet for FTTR use

400V lithium battery cabinets, typically using LiFePO4 cells with integrated BMS, provide reliable, modular, and high-efficiency energy storage suitable for FTTR telecom deployments.

Key Features

Voltage and Capacity: Most cabinets operate at 400V nominal voltage, with capacities ranging from 64 kWh to 100 kWh or higher, depending on the number of modules and series configuration . For example, Delong offers a 64 kWh system, while ZBPOWER provides 100 kWh cabinets for industrial applications . Battery Chemistry: LiFePO4 (Lithium Iron Phosphate) cells are commonly used due to their high energy density, long cycle life, thermal stability, and safety compared to lead-acid alternatives . Modular Design: Cabinets are often modular, allowing easy expansion, maintenance, and scalability. Systems like the EGbatt 80 kWh HV ESS use multiple slave modules connected in series with a master BMS for flexible deployment . Battery Management System (BMS): Integrated BMS ensures overcharge, over-discharge, overcurrent, and thermal protection, maintaining system stability and prolonging battery life . Communication interfaces such as RS485 and CAN allow integration with inverters or monitoring systems. Environmental Protection: Many cabinets feature IP54-rated enclosures, providing dust and water resistance suitable for indoor or semi-outdoor telecom environments . Some containerized solutions offer full outdoor deployment with prefabricated 20ft or 40ft containers . Applications for FTTR: These high-voltage cabinets are ideal for telecom backup power, microgrids, solar energy storage, and industrial ESS. Their high power output, long cycle life, and compact footprint make them suitable for FTTR nodes where reliable, uninterrupted power is critical . Installation and Integration: Cabinets are designed for plug-and-play or prefabricated installation, reducing setup time. Customization options are available for voltage, capacity, communication protocols, and cabinet dimensions to match specific FTTR deployment requirements .

Example Systems

• ZBPOWER 100 kWh 400V Cabinet: High-performance LiFePO4 cells, modular design, BMS integration, suitable for industrial and telecom ESS .
• EGbatt 80 kWh 400V 200Ah HV ESS: Modular series-connected battery modules with master BMS, flexible and scalable for high-power applications .
• Delong 64 kWh 400V Stackable Pack: Compact, high-density LiFePO4 system with advanced BMS, supports up to 6,500 cycles and wide temperature operation (-10°C to 50°C), .
• Containerized 400V Lithium Systems: Prefabricated 20ft/40ft containers with IP54 protection, suitable for outdoor telecom or industrial sites . These systems provide reliable, safe, and scalable energy storage for FTTR deployments, ensuring continuous operation of network equipment while supporting future expansion.