FOXESS CQ7 Series Battery Storage System

FOXESS CQ7 Series: The modular high-performance storage system for maximum energy self-sufficiency

For demanding homeowners, commercial enterprises, and professional solar installers who refuse to compromise on energy independence: The FOXESS CQ7 battery storage system combines state-of-the-art LFP technology with a forward-looking, modular design. Through the flexible combination of master and slave modules, the capacity can be effortlessly scaled from 14.04 kWh up to 98.28 kWh. Thanks to an impressive depth of discharge of 90 % and fast plug-and-play installation, you save valuable mounting time and secure a highly efficient, long-lasting energy solution for any application.

Highlights of the FOXESS CQ7 Master Module (CQ7-M-80)

• Intelligent system control: The master module functions as the central control unit for the entire tower, monitors all connected cells, and manages communication.
• Integrated status display: Equipped with a clear LED display (6 LEDs) for direct, straightforward monitoring of the system status and state of charge (SoC) directly on the storage unit.
• CAN communication: The integrated CAN interface ensures fast, stable, and completely error-free data exchange with the inverter.
• Future-proof protection: Includes an integrated fire protection function for maximum safety during daily operation.

Highlights of the FOXESS CQ7 Slave Module (CQ7-S-80)

• Secure LFP cell technology: Based on state-of-the-art lithium iron phosphate technology (LiFePO4), which is known for its extreme cycle stability, thermal stability, and maximum service life.
• Precise 7.02 kWh units: Each slave module flexibly expands the system by 7.02 kWh of nominal capacity, allowing for exact dimensioning of the storage system.
• Outstanding efficiency: A round-trip efficiency of over 95 % minimizes conversion losses during charging and discharging to an absolute minimum.
• Simple plug-and-play assembly: The modules are stacked on top of each other without cables; this saves installation time, reduces potential sources of error, and allows for a clean floor-standing installation indoors or outdoors.

Technical Specifications

Advantage for professionals: The FOXESS CQ7 series sets new standards in terms of scalability and installation convenience. With an IP65 protection rating, the system is perfectly suited for demanding installations indoors and in protected outdoor areas. The highly efficient series connection of up to 14 modules (max. 98.28 kWh) allows installers to cover large commercial projects as well as demanding private households with just a single battery tower. The innovative stackable plug-and-play concept drastically reduces on-site installation time and minimizes the risk of wiring errors.