Description
Fogstar Energy 64.4kWh IP65 Modular Solar Battery Stack
The Fogstar Energy 64.4kWh IP65 Modular Battery Stack is a high-capacity 48V (51.2V) LiFePO4 solar battery storage system designed for demanding residential, commercial and light industrial energy installations.
Built from four individual 16.1kWh battery modules, this complete modular system delivers a combined 64.4kWh of energy storage. A top-mounted control unit manages all four modules as one integrated battery system, while a dedicated base plate provides a secure foundation for the complete stack.
With integrated heating, automatic fire suppression, advanced battery management and an IP65-rated enclosure, the Fogstar 64.4kWh battery stack is engineered for reliable performance in demanding environments.
Its modular design makes handling, installation and maintenance more manageable compared with a single large battery enclosure, making it a practical option for properties requiring substantial solar energy storage or backup power capacity.
64.4kWh High-Capacity Modular Battery Storage
The system comprises four individual 16.1kWh LiFePO4 battery modules, assembled into a single integrated battery stack.
- Battery Module 1: 16.1kWh
- Battery Module 2: 16.1kWh
- Battery Module 3: 16.1kWh
- Battery Module 4: 16.1kWh
- Total Rated Energy: 64.4kWh
- Nominal Voltage: 51.2V
- Total Capacity: 1,256Ah
The top-mounted control unit manages all four modules as one unified battery system, simplifying commissioning, monitoring and integration with compatible solar inverters.
Advanced Battery Management and Protection
The Fogstar Energy modular battery stack incorporates advanced battery management technology to support efficient charging, discharging and long-term reliability.
- Integrated battery management system (BMS)
- 150A SEPLOS BMS technology for battery protection and control
- 2A JK active cell balancing
- Accurate cell voltage monitoring
- Integrated 350A system isolation breaker
- LCD touchscreen for real-time system information
Active cell balancing helps maintain consistent cell voltages, supporting battery stability, performance and service life.
IP65 Protection for Indoor and Outdoor Installations
The Fogstar 64.4kWh battery stack features a sealed IP65-rated enclosure, providing protection against dust ingress and water jets.
This makes the system suitable for appropriately designed indoor and outdoor battery installations, including utility areas, plant rooms and suitable external locations.
Integrated Heating for Cold-Weather Performance
An integrated battery heating system helps maintain suitable cell temperatures during charging in colder environments.
The system is designed for operation in ambient conditions down to -15°C, with heating assisting charging performance when temperatures fall.
This makes the battery particularly suitable for UK installations where winter temperatures may affect conventional lithium battery charging.
Automatic Fire Suppression
For additional protection, the Fogstar Energy battery stack incorporates a built-in, heat-activated aerosol fire suppression system.
The system is designed to activate automatically in response to excessive internal temperatures, providing an additional layer of protection within the battery enclosure.
Compatible Solar Inverter Integration
CAN and RS485 communication enable integration with a range of compatible solar inverter systems.
Supported inverter protocols include:
- Victron
- LuxPower
- Sunsynk
- Solis
- Voltronic
- Voltacon
Compatibility should be confirmed against the specific inverter model, firmware and battery communication settings before installation.
Key Features
- 64.4kWh capacity: Four 16.1kWh LiFePO4 battery modules.
- Modular construction: Designed for easier handling, installation and servicing.
- IP65 enclosure: Protection against dust and water ingress.
- Integrated heating: Supports charging in low-temperature environments.
- Automatic fire suppression: Heat-activated aerosol protection.
- Advanced BMS: Intelligent battery monitoring and protection.
- 2A active balancing: JK active cell balancing technology.
- High current capability: Up to 300A system charge and discharge current.
- 350A breaker: Integrated system isolation.
- LCD touchscreen: Convenient local monitoring and control.
- CAN/RS485 communication: Supports compatible hybrid and off-grid inverters.
- Long cycle life: Rated for 8,000 cycles at 91% depth of discharge.
- 6-year warranty: Supported by 10 years of UK-based customer service.
Technical Specifications
- Manufacturer: Fogstar Energy
- Product: IP65 48V Modular Battery Stack
- Battery Chemistry: LiFePO4
- Rated Energy: 64.4kWh
- Nominal Voltage: 51.2V
- Operating Voltage: 43.2V – 57.6V
- Capacity: 1,256Ah
- Module Configuration: 4 × 16S1P
- Number of Battery Modules: 4
- Energy per Module: 16.1kWh
- Maximum Charge Current: 300A
- Maximum Discharge Current: 300A
- Battery Management: SEPLOS BMS
- Active Balancing: JK 2A
- System Breaker: 350A
- Cycle Life: 8,000 cycles at 91% DOD
- Charging Temperature: 0°C to 45°C (with heating support)
- Discharge Temperature: -20°C to 45°C
- Communications: CAN / RS485
- Ingress Protection: IP65
- Dimensions: 830 × 450 × 1,199mm
- Weight: 517kg
- Warranty: 6 years
- Customer Support: 10 years UK-based support
What’s Included?
- 4 × Fogstar Energy 16.1kWh LiFePO4 battery modules
- 1 × Top-mounted battery control unit
- 1 × Battery stack base plate
- Pre-terminated 95mm² battery power cables
- Battery interconnection cables with Amphenol connectors
- 1.5m communication cable
The supplied battery power cables allow connection to a compatible inverter or external busbar, depending on the installation design.
Installation note: All electrical connections must be completed by a suitably qualified installer following the manufacturer’s instructions. The manufacturer specifies that negative connections must be completed before positive connections.
Ideal Applications
- Large residential solar battery storage systems
- Commercial energy storage installations
- Light industrial renewable energy systems
- High-capacity hybrid inverter installations
- Off-grid homes and remote properties
- Backup and resilience systems
- High-demand renewable energy projects
Technical Downloads
Download the manufacturer documentation for technical specifications, installation guidance and warranty information.
Download Modular Battery Stack Technical Specification (PDF)
Download IP65 Modular Battery Reference Document (PDF)
Download Modular Battery Stack Technical Manual (PDF)
Download Fogstar Energy Battery Warranty Booklet (PDF)
Availability and Pre-Orders
This product is available to pre-order, subject to supplier availability.
Please contact South West Renewables for current stock information, expected delivery times and ordering arrangements before purchasing.
Due to the size and weight of this battery system, specialist delivery and handling arrangements may be required.
