Fox ESS CQ7 High Voltage Battery Storage System

The Fox ESS CQ7 is a high-performance, scalable high-voltage battery storage solution designed for residential and commercial energy storage applications. Built using safe and reliable LiFePO₄ (LFP) battery technology, the CQ7 combines high efficiency, flexible expansion capability, and simple plug-and-play installation to help maximise self-consumption and energy independence.

With a starting capacity of 14.04kWh, the modular system can be expanded up to 98.28kWh by connecting up to 14 modules in series, making it suitable for a wide range of project sizes and future energy demands. The system offers 90% depth of discharge (DoD) and over 95% round-trip efficiency, ensuring maximum usable energy and excellent performance.

Designed for both indoor and outdoor installations, the CQ7 features an IP65-rated enclosure, natural convection cooling, integrated fire protection functionality, and CAN communication for seamless integration with compatible energy management systems. Its wide operating temperature range and optional battery warming function help deliver reliable performance in demanding environments.

Key Features

Modular high-voltage battery storage system

Expandable from 14.04kWh to 98.28kWh

Safe and reliable LiFePO₄ battery chemistry

90% depth of discharge for greater usable capacity

>95% round-trip efficiency

Plug-and-play installation for faster deployment

Supports up to 14 battery modules in series

Integrated fire protection function

IP65 rated for indoor and outdoor use

Wide operating temperature range with optional self-heating functionality

CAN communication interface

Certified to IEC 62619 and UN38.3 standards