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FOX ESS EQ4800-M – 4.66kWh Battery Module Master (Leader)

The FOX ESS EQ4800-M is the master (leader) battery module of the advanced EQ Series high-voltage energy storage system, designed to deliver reliable, scalable, and high-performance energy storage for residential and commercial solar applications. Engineered with premium lithium battery technology and an intelligent Battery Management System (BMS), the EQ4800-M serves as the control module within the battery stack, coordinating communication, monitoring, and protection functions across the entire system.

As part of the modular FOX ESS EQ Series, the EQ4800-M provides 4.66kWh of usable energy capacity and can be combined with additional EQ4800 battery modules to create a scalable storage solution tailored to changing energy demands. Up to nine battery modules can be connected in a single high-voltage stack, allowing homeowners and businesses to significantly increase storage capacity as required.

Designed to maximize energy utilization, the EQ Series supports 100% Depth of Discharge (DoD), enabling users to access the full stored capacity of the battery. With a cycle life exceeding 6,000 cycles, the system delivers long-term reliability and excellent return on investment, making it ideal for self-consumption, backup power applications, and energy independence.

The high-voltage architecture provides improved system efficiency and seamless compatibility with FOX ESS hybrid inverters, ensuring optimal charging and discharging performance. Installation is simplified through the stackable design, plug-and-play cabling, and CAN communication, reducing installation time and complexity.

Built for demanding environmental conditions, the EQ4800-M operates across a wide temperature range, making it suitable for year-round operation in diverse climates.

Key Features

• 4.66kWh usable battery capacity

• Master (Leader) module for FOX ESS EQ Series battery systems

• High-voltage lithium battery technology

• 100% Depth of Discharge (DoD) for maximum usable energy

• Modular and scalable architecture

• Supports up to 9 battery modules per stack

• Intelligent integrated Battery Management System (BMS)

• More than 6,000 charge/discharge cycles

• High round-trip efficiency when paired with FOX ESS hybrid inverters

• Plug-and-play installation design

• CAN communication for reliable system integration

• Compact stackable configuration

• Wide operating temperature range for all-season performance

• Suitable for residential and commercial energy storage applications

Technical Specifications

System Benefits

The FOX ESS EQ4800-M forms the foundation of a flexible and future-ready battery storage system. Its modular design allows users to start with a smaller storage capacity and expand over time as energy requirements increase. Combined with FOX ESS hybrid inverters, the EQ Series delivers efficient solar energy storage, enhanced self-consumption, reduced grid dependence, and reliable long-term performance.

Note: Each EQ4800 battery module provides approximately 4.66kWh of storage capacity. Total system capacity depends on the number of installed modules and the overall system configuration.