Fox-ESS PowerQ 11.4 EQL2 All-in-One Residential Energy Storage System (11.4 kW / 7.94 kWh)

The Fox-ESS PowerQ 11.4 EQL2 is a powerful all-in-one residential energy storage system that combines an 11.4 kW hybrid inverter with 7.94 kWh of high-quality Lithium Iron Phosphate (LFP) battery storage in a single, sleek, outdoor-rated unit.

Designed for homeowners who want reliable whole-home backup, maximum solar self-consumption, and lower electricity bills, the PowerQ delivers seamless performance whether paired with new or existing solar systems. It supports both AC-coupled and DC-coupled configurations, making it incredibly versatile for almost any residential setup.

With its modular design, you can easily expand capacity as your energy needs grow. Monitor and control the entire system in real-time through the user-friendly FoxCloud US app on your smartphone or web portal.

Key Features & Benefits

• High Continuous Power: 11.4 kW output — powerful enough to support most whole-home loads, including HVAC, appliances, and critical circuits during outages.
• Massive Solar Input: Accepts up to 22.8 kW of PV with 3 independent MPPT trackers, optimizing energy harvest even on complex rooftops.
• Safe LFP Battery Technology: Premium Lithium Iron Phosphate cells provide long cycle life, excellent safety, and thermal stability.
• Scalable Storage: Start with 7.94 kWh and expand by adding battery modules up to approximately 19.85 kWh per PowerQ unit. Parallel up to 4 units for a total system capacity of 80 kWh.
• Flexible Operation: Works with both new DC solar arrays and existing AC-coupled solar systems.
• Outdoor Rated: Type 4X enclosure with natural convection cooling — ideal for outdoor installation with quiet, reliable operation.
• Smart Monitoring: Built-in Wi-Fi, 4G, and LAN connectivity for remote control and real-time insights via the FoxCloud app.
• High Efficiency: Up to 97% CEC efficiency to maximize your solar production and savings.
• Easy Installation: Integrated all-in-one design with ground mounting for faster and simpler setup.

Technical Specifications

Battery & System

• Total Usable Energy: 7.94 kWh (expandable to ~19.85 kWh per unit)
• Battery Type: Lithium Iron Phosphate (LFP)
• Battery Modules: 2 modules + 1 base
• Scalability: Up to 5 battery modules per PowerQ unit / up to 4 units in parallel (80 kWh total)

Inverter & PV

• Max. Continuous AC Output Power: 11.4 kW
• Max. Solar PV Input (STC): 22.8 kW
• Max. PV Input Voltage: 600V
• MPPT Voltage Range: 80–550V
• Number of MPPT Trackers: 3 (MPPT1 supports 2 strings)
• Max. PV Input Current per MPPT: 28/14/14 A
• Max. Continuous AC Output Current: 47.5 A
• CEC Efficiency (PV): 97%

Physical & Environmental

• Dimensions (W × H × D): 22.4 × 33.4 × 15 in (570 × 848 × 380 mm)
• Total Weight: 282.9 lbs (128.3 kg) (Inverter: 112.44 lbs | Each Battery Module: 81.35 lbs | Base: 7.72 lbs)
• Enclosure Rating: Type 4X (outdoor rated)
• Operating Temperature: 14°F to 131°F (-10°C to +55°C)
• Cooling: Natural convection (<35 dB noise)
• Mounting: Ground mount

Connectivity & Compliance

• Communication: Wi-Fi, 4G, LAN | CAN 2.0, RS485, Meter, CT, SUNSPEC
• Display: LED indicators + FoxCloud App / Web portal
• Certifications: UL9540, UL9540A, UL1973, UL1741 SB/SA, Rule 21, IEEE 1547, CEC Listed
• Warranty: 12.5 years

What’s Included

• 1 × 11.4 kW Hybrid Inverter
• 2 × LFP Battery Modules (providing 7.94 kWh total usable energy)
• 1 × Base

Why Choose the Fox-ESS PowerQ 11.4 EQL2?

The PowerQ 11.4 EQL2 gives you true energy independence. Store surplus solar energy during the day and use it at night or during grid outages. Its high power output and flexible coupling options make it ideal for both new solar installations and retrofits on existing systems.

The modular, stackable design simplifies future expansion, while the outdoor-rated construction and quiet operation make it suitable for almost any home. With advanced monitoring and multiple operating modes, you stay in complete control of your energy — maximizing savings and backup reliability.

Note: This battery system ships via freight. Professional installation by a licensed electrician or certified solar installer is required for safety and to maintain warranty validity.

Perfect For

• Homeowners seeking reliable whole-home backup power
• Maximizing self-consumption from new or existing solar arrays
• Reducing monthly electricity bills
• Future-proof energy storage that can grow with your needs

Take control of your energy future today with the Fox-ESS PowerQ 11.4 EQL2 All-in-One Energy Storage System.