Battery FOX ESS 6.96kWh Battery Module Slave w/Heating Element (CQ7-S (w))
The FOX ESS CQ7-S (w) is the slave expansion module for the CQ7 high-voltage system. Each slave adds 6.96 kWh of LFP storage to a stack initiated by a CQ7-M (w) master module, scaling capacity in 6.96 kWh increments up to 14 total modules (one master plus thirteen slaves equals 97.44 kWh). The “(w)” cold-climate variant carries the same heating element as the master, keeping the entire stack thermally matched for -25 degrees Celsius operation. Single-LED status indicator (the master holds the BMS and comms), IP65, 100% depth of discharge.
Battery FOX ESS 6.96kWh Battery Module Slave w/Heating Element (CQ7-S (w))
The FOX ESS CQ7-S (w) is the slave expansion module for the CQ7 high-voltage system. Each slave adds 6.96 kWh of LFP storage to a stack initiated by a CQ7-M (w) master module, scaling capacity in 6.96 kWh increments up to 14 total modules (one master plus thirteen slaves equals 97.44 kWh). The “(w)” cold-climate variant carries the same heating element as the master, keeping the entire stack thermally matched for -25 degrees Celsius operation. Single-LED status indicator (the master holds the BMS and comms), IP65, 100% depth of discharge.
Note: CQ7-S (w) slaves must only be stacked with CQ7-M (w) masters. Do not mix with non-heated CQ7-M.
Key Features
- Slave expansion 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 matches the master, extending stack operating range to -25 to +55 degrees Celsius
- Adds capacity in 6.96 kWh increments without extra control electronics
- Up to 13 slaves stack with one CQ7-M (w) master for up to 97.44 kWh
- Single LED status indicator (master module retains the BMS and communications)
- IP65 rated, indoor or outdoor stand mount
- IEC 62619, UN38.3 and IEC 61000-6 EMC certified
Specifications
| Model | CQ7-S (w) |
| Chemistry | LFP (LiFePO4) |
| Capacity | 6.96 kWh nominal/usable |
| Depth of discharge | 100% |
| Operating temperature (heated) | -25 to +55 degrees Celsius |
| Max charge/discharge current | 80 A |
| Communication | Bus communication to master via CAN |
| Protection rating | IP65 |
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Solar Juice is an Australian company that is a wholesale distributor of Solar PV panels, solar inverters, components and complete solar systems.
