Fox ESS CQ7-S-50 7.02kWh HV LiFePO4 Slave Battery Module – Module Only

The Fox ESS CQ7-S-50 is a high-voltage Slave battery module designed for use within the Fox ESS CQ7 battery storage system. With a nominal capacity of 7.02kWh, 57.6V nominal voltage and advanced LiFePO4 battery technology, this module provides a reliable and scalable energy storage solution for residential and commercial solar applications.

This product is supplied as one Slave battery module only. It does not include the CQ7 Master module/system controller. A complete Fox ESS CQ7 battery system always requires one CQ7-M-50 Master module together with one or more CQ7-S-50 Slave modules. The system can be expanded with up to 13 Slave modules, allowing a total storage capacity of up to 98.28kWh.

The CQ7-S-50 is built for easy installation and flexible system expansion. Its modular, plug-and-play design helps reduce installation time, while CAN communication ensures efficient interaction with compatible Fox ESS hybrid inverters. The battery uses safe and durable Lithium Iron Phosphate chemistry, offering long service life, stable performance and excellent operational safety.

Each CQ7-S-50 module offers a 122Ah nominal capacity, 50A maximum charge/discharge current, 65A peak discharge current for 60 seconds, and a wide operating temperature range. The compact module dimensions of 660 × 360 × 190mm and weight of approximately 50kg make it suitable for indoor and outdoor stand installation when used according to Fox ESS installation requirements.

The Fox ESS CQ7 series is designed with multiple protection functions and an integrated fire protection function, supporting safe and reliable energy storage in demanding environments. With an IP65 protection rating, natural convection cooling and scalable high-voltage architecture, the CQ7-S-50 is an excellent choice for expanding an existing Fox ESS CQ7 battery tower or building a new high-voltage storage system with the required Master module.

Important: This is a Slave battery module only. For a working battery system, a compatible CQ7-M-50 Master battery module/system controller is required.

Key Features

• Original Fox ESS CQ7-S-50 Slave battery module
• 7.02kWh nominal battery capacity
• High-voltage LiFePO4 battery technology
• 57.6V nominal module voltage
• 122Ah nominal capacity
• 50A maximum charge/discharge current
• CAN communication
• Modular and expandable CQ7 battery system
• Scalable up to 98.28kWh with the correct Master/Slave configuration
• Compact module size: 660 × 360 × 190mm
• Approximate weight: 50kg
• Suitable for compatible Fox ESS high-voltage storage systems
• Module only – Master/controller module not included