FoxESS CQ7-S Energy Storage System

FoxESS CQ7-S is a modular, high-voltage energy storage module with a capacity of 7.02 kWh, designed for installations requiring flexible expansion and high durability. CQ7-S allows for serial connection of modules, enabling capacity adjustment to system needs.

The device is produced by FoxEss — a manufacturer of ESS solutions, which emphasizes modular design, easy installation, and compliance with international safety and electromagnetic standards in its documentation.

Electrical and Technical Parameters

• Module Capacity (nominal): 7.02 kWh
• Module Capacity (usable): 7.02 kWh
• Operating Voltage Range: 104.4 ~ 919.8 V
• Recommended Charge/Discharge Current: 50 A
• Max. Charge/Discharge Current: 80 A
• Peak Discharge Current: 110 A (60 s)
• Cycling Efficiency: >95%
• Depth of Discharge (DoD): 100%
• Communication and Interface: CAN; LED display (CQ7-S: LED*1)
• Cell Type: LFP (LiFePO4)
• Scalability: Max. 14 modules in series (up to 98.28 kWh)
• Standards and Certifications: IEC 62619, IEC 61000-6-1/2/3/4, UN38.3
• Protection Class: IP65

Mechanical Parameters

• Installation Location: Outdoors / Indoors (on stable ground)
• Dimensions (W x D x H): 660 x 360 mm
• Cooling Method: Convection
• Operating Temperature (without heating mode): charging: 0 ~ 55 °C, discharging: -10 ~ 55 °C
• Operating Temperature (heating mode enabled, optional): charging: -25 ~ 55 °C, discharging: -25 ~ 55 °C
• Storage Temperature: -10 ~ 50 °C
• Operating Humidity: 5 ~ 95% (non-condensing)
• Installation Height: Max. 3000 m
• Fire Protection Feature: YES