The FOX ESS CQ7-M (w) is the master module for the CQ7 high-voltage residential battery system. As the master, it contains the system controller and BMU plus the first 6.96 kWh LFP battery module, and is required exactly once per stack. The "(w)" winter variant adds an internal heating element that lets the battery charge and discharge from -25 degrees Celsius up to +55 degrees Celsius, keeping the bank online through cold mornings. Warm-up start/stop thresholds and up to three time windows are user-configurable via the FOX ESS app. IP65, 100% depth of discharge, CAN communication, supports stacking with up to 13 CQ7-S (w) slave modules for a maximum 97.44 kWh capacity.

Key Features

• Master module for the FOX ESS CQ7 high-voltage residential storage system
• 6.96 kWh LFP capacity per module, 100% usable depth of discharge
• Built-in heating element extends operating range to -25 to +55 degrees Celsius (charge and discharge)
• Warm-up activation thresholds and up to three time windows configurable in the FOX ESS app
• Contains the system controller, BMU, and switchgear required to initiate a CQ7 stack
• CAN-bus communication, single-stack control electronics
• IP65 rated, suited to indoor or outdoor stand mount installations
• Pairs with up to 13 CQ7-S (w) slave modules for up to 97.44 kWh of total storage
• IEC 62619, UN38.3 and IEC 61000-6 EMC certified

Specifications