Description
The Fogstar Energy 48.3kWh Modular Battery Stack (FE51.2-48.3) is a high-capacity lithium energy storage solution engineered for residential, commercial, and light industrial applications.
Each system is built from three 16.1kWh LiFePO₄ battery modules, stacked into a single, integrated unit controlled by a top-mounted control module. This modular design simplifies installation, transport, servicing, and future expansion – making it ideal for both initial installs and phased system growth.
Designed for demanding environments, the system features a fully sealed IP65-rated enclosure, integrated heating, and a built-in fire suppression system, ensuring safe and reliable operation in both indoor and outdoor installations.
With CAN and RS485 communication, the system integrates seamlessly with leading inverter brands including Victron, Sunsynk, Solis, LuxPower, Voltronic, and Voltacon, making it a flexible solution for a wide range of energy systems.
Capable of scaling from a single 48.3kWh stack up to 1.23MWh, this system delivers enterprise-level storage performance with long cycle life, high efficiency, and dependable output—backed by UK-based support.
System Overview
Each 48.3kWh stack consists of three 16.1kWh modules, combined into a single enclosure and managed by a central control unit. This unified system simplifies commissioning and operation while allowing additional stacks to be added at any time to increase capacity.
Key Features
- 48.3kWh Energy per Stack – high-capacity storage for demanding systems
- Modular Design (3 × 16.1kWh units) – easier installation, servicing, and expansion
- Advanced BMS Control – precise monitoring and long-term system protection
- Scalable Architecture – expand up to 1.23MWh total capacity
- Wide Inverter Compatibility – Victron, Sunsynk, Solis, LuxPower, Voltacon & more
- IP65 Rated Enclosure – suitable for indoor and outdoor installations
- Integrated Fire Suppression – automatic internal safety system
- Cold-Weather Operation – built-in heating for low-temperature charging
- JK Active Cell Balancing (2A) – improved efficiency and lifespan
- High Output Performance – supports large inverters and backup systems
- LCD Touchscreen Interface – real-time monitoring and system control
- Built-in 350A Breaker – safe isolation during faults or maintenance
- 6-Year Warranty & UK Support – long-term reliability
What’s Included
- 1 × Fogstar Energy 48.3kWh Modular Battery Stack
- Pre-terminated 95mm² power cables
- Amphenol battery interconnect cables
- 1.5m CAN / RS485 communication cable
Installation Note: Always connect negative conductors before connecting positive.
System Configuration
- Single Stack: 48.3kWh
- Scalable System: Up to 1.23MWh total capacity
- Integration: Compatible with major inverter platforms
Specifications
- Model: FE51.2-48.3
- Rated Energy: 48.3 kWh
- Nominal Voltage: 51.2 V
- Operating Voltage Range: 43.2 V – 57.6 V
- Capacity: 314 Ah
- Max Continuous Discharge: 300 A
- Max Charge Current: 300 A
- Cycle Life: 8,000 cycles @ 91% DoD
- Configuration: 3 × 16S1P (3 modules)
- Operating Temperature: Charge: 0°C to 45°C · Discharge: -20°C to 45°C
- Communications: CAN / RS485
- Ingress Protection: IP65
- Weight: 394 kg
Datasheets
Datasheet
