The FOX ESS EQ4000 is a modular high-voltage battery system designed to scale with your energy needs.
Starting from 7.95 kWh and expanding up to 27.82 kWh, the EQ4000 allows customers to choose the exact storage capacity they need — with the flexibility to expand later.
Built with LiFePO4 (LFP) technology, high efficiency, and robust safety certifications, it’s the ideal solution for residential, hybrid, and backup energy systems.
Price range: $2,000.00 through $12,000.00
Product details
The FOX ESS EQ4000 is a modular high-voltage battery system designed to scale with your energy needs.
Starting from 7.95 kWh and expanding up to 27.82 kWh, the EQ4000 allows customers to choose the exact storage capacity they need — with the flexibility to expand later.
Built with LiFePO4 (LFP) technology, high efficiency, and robust safety certifications, it’s the ideal solution for residential, hybrid, and backup energy systems.
Description
The FOX ESS EQ4000 is a modular high-voltage battery system designed to scale with your energy needs.
Starting from 7.95 kWh and expanding up to 27.82 kWh, the EQ4000 allows customers to choose the exact storage capacity they need — with the flexibility to expand later.
Built with LiFePO4 (LFP) technology, high efficiency, and robust safety certifications, it’s the ideal solution for residential, hybrid, and backup energy systems.
🌟 Key Features
🔋 Fully Scalable Architecture
- Expand from 2 to 7 modules in series
- Max system capacity: 27.82 kWh
- Perfect for phased installations
⚡ High-Voltage Performance
- Operating voltage range up to 459.9V
- Improved efficiency with modern hybrid inverters
🔄 High Efficiency & Daily Use Ready
- >95% round-trip efficiency
- 90% Depth of Discharge
- Ideal for:
- Daily cycling
- Peak shaving
- Backup power
🛡️ Safe & Reliable Chemistry
- LiFePO4 (LFP) prismatic cells
- Long lifespan + thermal stability
📡 Smart Integration
- CAN communication
- Seamless integration with compatible hybrid/AIO systems
⚡ Core Technical Specifications
| Specification | Value |
|---|---|
| Battery Type | LiFePO4 Prismatic Cell |
| Max Charge/Discharge Current | 50 A |
| Peak Discharge Current | 65 A (60 sec) |
| Round Trip Efficiency | >95% |
| Depth of Discharge | 90% |
| Scalability | Max 7 modules in series |
| Communication | CAN |
🌡️ Operating Conditions
| Parameter | Value |
|---|---|
| Installation | Indoor / Outdoor |
| Operating Temperature | -10°C to 55°C |
| Storage Temperature | -20°C to 55°C |
| Cooling | Natural Convection |
| Humidity | 0–100% (Non-condensing) |
| Altitude | Up to 2000 m |
🏗️ Mechanical Specifications (Varies by Model)
| Model | Dimensions (W×H×D mm) | Weight |
|---|---|---|
| AL2 | 570 × 330 × 380 | 71.5 kg |
| AL3 | 570 × 420 × 380 | 106.5 kg |
| AL4 | 570 × 540 × 380 | 141.5 kg |
| AL5 | 570 × 660 × 380 | 176.5 kg |
| AL6 | 570 × 780 × 380 | 211.5 kg |
| AL7 | 570 × 900 × 380 | 246.5 kg |
Protection Rating: IP65 (Indoor/Outdoor Rated)
🛡️ Certifications & Warranty
- UL1973, UL9540, UL9540A
- UN38.3 Transportation Certified
- 12.5-Year Standard Warranty
🏗️ Why Choose EQ4000?
✔️ Flexible for Any Customer
- Entry-level → full-home backup in one product
- Easy upsell path
✔️ High Margin Product for Your Store
- Modular pricing tiers
- Natural upgrade ladder (AL2 → AL7)
✔️ Perfect for:
- Hybrid solar systems
- Backup power solutions
- Load shedding markets
- Residential & light commercial projects
Customer Reviews
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