Fox ESS EP11 Battery – Features, Specifications & Price in Pakistan (2026)
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The Fox ESS EP11 is a premium high-voltage LiFePO4 (Lithium Iron Phosphate) battery designed for residential and commercial solar energy storage. Built to work seamlessly with Fox ESS hybrid inverters, the EP11 provides reliable backup power, high charging efficiency, and a modular design that allows users to expand their energy storage as their electricity needs grow.
Whether you’re installing a new solar system or upgrading an existing one, the Fox ESS EP11 is an excellent choice for homeowners looking for efficient, long-lasting battery storage.
Fox ESS EP11 Price in Pakistan
| Model | Capacity | Estimated Price (PKR) |
|---|---|---|
| Fox ESS EP11 | 10.36kWh | PKR 580,000 – 700,000 |
Note: Prices vary depending on the dealer, warranty, installation, and exchange rates.
Fox ESS EP11 Specifications
| Specification | Details |
|---|---|
| Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Battery Type | High Voltage |
| Nominal Energy | 10.36kWh |
| Nominal Voltage | 384V |
| Operating Voltage | 348–438V |
| Maximum Charge/Discharge Current | 27A |
| Peak Discharge Current | 65A |
| Round-Trip Efficiency | ≥95% |
| Depth of Discharge | 90% |
| Cycle Life | ≥4,000 Cycles |
| Communication | CAN |
| Protection Rating | IP65 |
| Installation | Wall Mounted |
| Weight | 99kg |
| Dimensions | 710 × 625 × 147 mm |
These specifications are based on the official Fox ESS EP11 datasheet.
Key Features
High-Voltage LiFePO4 Technology
The EP11 uses LiFePO4 prismatic cells, known for:
- High safety
- Excellent thermal stability
- Long service life
- High charging efficiency
- Maintenance-free operation
10.36kWh Energy Storage
The EP11 provides 10.36kWh of nominal energy, making it suitable for powering:
- Lights
- Fans
- Refrigerators
- Televisions
- Wi-Fi routers
- Computers
- Washing machines
- Water pumps
- Selected air conditioners (depending on system design)
Expandable Battery System
One of the EP11’s biggest advantages is its modular architecture.
Users can connect up to four EP11 batteries in parallel, increasing total storage capacity to 41.6kWh.
Intelligent Battery Management System (BMS)
The built-in BMS continuously monitors battery performance and provides protection against:
- Overcharging
- Deep discharge
- Overcurrent
- Short circuits
- High and low temperatures
- Cell imbalance
High Efficiency
The EP11 delivers:
- ≥95% round-trip efficiency
- Fast charging and discharging
- Optimized energy utilization
- Lower system losses
IP65 Protection
With an IP65-rated enclosure, the EP11 is designed for both indoor and outdoor installation in suitable environments, offering protection against dust and water ingress.
Compatible Fox ESS Hybrid Inverters
The Fox ESS EP11 is compatible with several Fox ESS inverter series, including:
- H1 Series
- KH Series
- H3 Series
- H3-Pro Series
- US Series
This compatibility allows seamless communication and optimized battery performance.
Ideal Applications
The Fox ESS EP11 is suitable for:
- Residential homes
- Villas
- Apartments
- Offices
- Small businesses
- Hybrid solar systems
- Net-metering systems
- Backup power during load shedding
Advantages of the Fox ESS EP11
- Premium LiFePO4 battery technology
- 10.36kWh energy storage
- High-voltage design
- Modular expansion up to 41.6kWh
- Intelligent BMS
- ≥95% round-trip efficiency
- IP65-rated enclosure
- Wall-mounted installation
- Maintenance-free operation
- Seamless compatibility with Fox ESS hybrid inverters
Is the Fox ESS EP11 Worth Buying?
The Fox ESS EP11 is an excellent option for homeowners and businesses looking for a premium energy storage solution. Its high-voltage architecture, modular expansion capability, and efficient LiFePO4 technology make it well suited for 5kW–15kW hybrid solar systems. While it carries a higher initial cost than many entry-level batteries, its performance, integration with Fox ESS inverters, and flexible scalability make it a strong long-term investment.
Final Verdict
The Fox ESS EP11 Battery combines advanced LiFePO4 technology, high-voltage operation, intelligent battery management, and expandable storage in one compact wall-mounted unit. With 10.36kWh of storage, IP65 protection, and support for up to 41.6kWh through parallel expansion, it is a premium choice for residential and commercial solar energy systems.
If you’re looking for a reliable, efficient, and future-ready battery to pair with a Fox ESS hybrid inverter, the EP11 is one of the strongest options available.
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