FoxESS
CQ7 HV Battery
Model range: CQ7-L2 – CQ7-L14 (standard & warm)
13 pack sizes (standard and warm variants)
FoxESS CQ7 HV modular LFP battery: CQ7-L2 to CQ7-L14 (13.92–97.44 kWh usable), 80 A charge/discharge, IP65.
At a glance
Best for
Properties wanting more evening usage coverage and backup planning
Standout
Battery size is around 13.92–97.44, which helps frame evening coverage expectations.
Watch out for
Battery value depends heavily on your current bill, evening usage, and tariff settings.
Key specifications
A quick snapshot of the family. Compare module counts and capacity in the table below.
Dimensions (W × H × D)
660 × 420 × 360 mm
Usable battery size
13.92–97.44
This is closer to the energy you can actually use day to day.
Battery chemistry
LFP
LFP batteries are widely used for stability and long cycle life.
Max charge / discharge
80 A
Warranty
10 yr product & performance
Longer warranty usually means stronger long-term coverage.
Ip Rating
IP65
Compare pack sizes
Capacity, voltage, and power rise as you stack more modules. Specs that stay the same on every size are listed underneath.
Numbers that change with size — including warm (w) versions, which share the same ratings.
Swipe for more sizes
| Spec | L2 | L3 | L4 | L5 | L6 | L7 | L8 | L9 | L10 | L11 | L12 | L13 | L14 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Battery Module [CQ7-S/CQ7-S (w)] | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Nominal CapacitykWh | 13.92 | 20.88 | 27.84 | 34.80 | 41.76 | 48.72 | 55.68 | 62.64 | 69.60 | 76.56 | 83.52 | 90.48 | 97.44 |
| Usable CapacitykWh | 13.92 | 20.88 | 27.84 | 34.80 | 41.76 | 48.72 | 55.68 | 62.64 | 69.60 | 76.56 | 83.52 | 90.48 | 97.44 |
| Nominal VoltageV | 115.2 | 172.8 | 230.4 | 288.0 | 345.6 | 403.2 | 460.8 | 518.4 | 576.0 | 633.6 | 691.2 | 748.8 | 806.4 |
| Nominal PowerkW | 9.22 | 13.82 | 18.43 | 23.04 | 27.65 | 32.26 | 36.86 | 41.47 | 46.08 | 50.69 | 55.30 | 59.90 | 64.51 |
| Dimensions (W*D*H)mm | 660*360*420 | 660*360*575 | 660*360*730 | 660*360*885 | 660*360*1040 | 660*360*1195 | 660*360*1350 | 660*360*1505 | 660*360*1660 | 660*360*1815 | 660*360*1970 | 660*360*2125 | 660*360*2280 |
| Weight (±5%)kg | 105.5 | 156.0 | 206.5 | 257.0 | 307.5 | 358.0 | 408.5 | 459.0 | 509.5 | 560.0 | 610.5 | 661.0 | 711.5 |
The same on every size
- Battery Type
- LFP (LiFePO₄)
- Battery Module [CQ7-M/CQ7-M (w)]
- 1
- Operating Voltage
- 104.4 ~ 919.8 V
- Max. Charge/Discharge Current
- 80 A
- Battery Pack Round-Trip Efficiency
- >95 %
- Depth of Discharge
- 100 %
- Communication
- CAN
- Display
- CQ7-S/CQ7-S (w): LED*1, CQ7-M/CQ7-M (w): LED*6
- Scalability
- Max. 14 Modules in Series
- Installation Location
- Outdoor/ Indoor (Stand)
- Operating Temperature
- Charge: 0 ~ 55, Discharge: -10 ~ 55 °C
- Operating Temperature (warm up function on, optional)
- Charge: -25 ~ 55, Discharge: -25 ~ 55 °C
- Storage Temperature
- -10 ~ 50 °C
- Cooling Method
- Natural Convection
- Humidity
- 5 ~ 95 (No Condensation) %
- Altitude
- Max. 3,000 m
- Fire Protection Function
- YES
- Safety
- IEC 62619
- EMC
- IEC 61000-6-1/2/3/4
- Transportation
- UN38.3
- Ingress Protection
- IP65
- Country of Manufacture
- China