*Pre-order - Stock due early June* | Fogstar Energy | 48.3-64.4kWh 51.2V Modular Battery Stack | IP65 | Fire Suppression | Heating System
*Pre-order - Stock due early June* | Fogstar Energy | 48.3-64.4kWh 51.2V Modular Battery Stack | IP65 | Fire Suppression | Heating System
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Fogstar Energy 48.3-64.4kWh 51.2V Modular Battery Stack
*Please note, this product is currently on pre-order with stock is expected around the beginning of June 2026
#12: Fog/En/Stack/48
Fogstar Battery stack Datasheet
Fogstar Battery stack Installation manual
Scalable Commercial LiFePO₄ Energy Storage | IP65 | Integrated Heating & Fire Suppression
The Fogstar Energy Modular Battery Stack (FE51.2-48.3) is a high-capacity, low-voltage (51.2V) LiFePO₄ energy storage system designed for residential, commercial and light industrial applications.
Built from 3-4 X 16.1kWh battery modules, and managed by a single top-mounted control unit that operates the system as one fully integrated solution.
With the ability to scale up to 1.23MWh, IP65 protection, integrated heating and built-in fire suppression, this system is engineered for reliable performance in demanding UK environments.
System Overview
Each 48.3kWh stack consists of:
• 3 × 16.1kWh LiFePO₄ battery modules
• Integrated top-mounted control unit
• Heavy-duty base plate structure
• Built-in 350A isolation breaker
Once assembled, the control unit manages all modules as one unified battery system — simplifying commissioning, inverter communication, monitoring and servicing.
The modular architecture allows additional stacks to be added at any time, making this solution ideal for phased commercial installs or growing energy demand.
Advanced Integrated BMS
A high-performance Battery Management System delivers:
• Precise charge & discharge control
• Full protection against over/under voltage & temperature
• Support for high-power inverter systems
• Long-term reliability and system stability
Seamless Inverter Integration
CAN & RS485 communication enables compatibility with leading inverter brands including:
• Victron
• LuxPower
• Sunsynk
• Solis
• Voltronic
• Voltacon
Ideal for hybrid, backup and off-grid applications.
Fully Scalable Architecture
• 1 × stack = 48.3kWh
• Multiple stacks connected in parallel
• Scales up to 1.23MWh total capacity
Perfect for commercial properties, agricultural sites, workshops, warehouses and large residential installs.
IP65-Rated Construction
A robust, sealed enclosure protects against dust and moisture, allowing:
• Indoor installation
• Plant room installation
• Outdoor installation (where suitable)
Built for real-world environments.
Integrated Fire Suppression
Heat-activated aerosol fire suppression system provides:
• Automatic internal protection
• No external maintenance requirements
• Enhanced site safety compliance
Cold-Weather Ready (Down to –15°C)
Integrated battery heating enables:
• Safe low-temperature charging
• Reliable winter operation
• Installation in unheated plant rooms and outbuildings
Operating conditions:
• Charge: 0–45°C (with heating enabled)
• Discharge: –20–45°C
JK 2A Active Cell Balancing
Continuous active balancing improves:
• Cell voltage equalisation
• System efficiency
• Long-term lifespan
• Performance stability under load
High Output Performance
• 51.2V (48V nominal) low-voltage system
• 300A maximum charge & discharge current
• Designed to support high-demand inverters
• Ideal for backup, peak shaving & off-grid applications
Built-In 350A Breaker
Integrated breaker allows full system isolation for:
• Maintenance
• Fault conditions
• Emergency shutdown
Warranty & Support
• 6-Year Manufacturer Warranty
• 10 Years UK-Based Customer Support
Technical Specifications
| Specification | Details |
|---|---|
| Model | FE51.2-48.3 |
| Rated Energy | 48.3kWh |
| Nominal Voltage | 51.2V |
| Operating Voltage Range | 43.2V – 57.6V |
| Configuration | 3 × 16S1P (3 × 16.1kWh modules) |
| Capacity | 314Ah |
| Cycle Life | 8,000 cycles @ 91% DOD |
| Max Discharge Current | 300A |
| Max Charge Current | 300A |
| Working Temperature (Charge) | 0–45°C (with heating) |
| Working Temperature (Discharge) | –20–45°C |
| Weight | 394kg |
| Ingress Protection | IP65 |
| Communication | CAN / RS485 |
What’s Included
The system is supplied with:
✔ Pre-Terminated 95mm² Battery Power Cables
Heavy-duty, high-current cables supplied ready terminated for fast installation.
Allows:
• Direct battery-to-inverter connection
• Connection via external DC busbar (where required)
✔ Amphenol-Terminated Battery Interconnect Cables
• Secure locking connectors
• Low-resistance current transfer
• Reliable parallel stack expansion
✔ 1.5m Communication Cable
Enables:
• CAN / RS485 communication
• Inverter control
• System monitoring integration
Installation Guidance
The supplied 95mm² power cables are compatible with most inverter systems.
In some installations:
• Battery cables may be routed to a DC busbar
• Manufacturer-supplied inverter leads may be used for final inverter connection
Original: $6,489.03
-65%$6,489.03
$2,271.16Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
-
Fogstar Energy 48.3-64.4kWh 51.2V Modular Battery Stack
*Please note, this product is currently on pre-order with stock is expected around the beginning of June 2026
#12: Fog/En/Stack/48 Fogstar Battery stack Datasheet
Fogstar Battery stack Installation manual
Scalable Commercial LiFePO₄ Energy Storage | IP65 | Integrated Heating & Fire Suppression
The Fogstar Energy Modular Battery Stack (FE51.2-48.3) is a high-capacity, low-voltage (51.2V) LiFePO₄ energy storage system designed for residential, commercial and light industrial applications.
Built from 3-4 X 16.1kWh battery modules, and managed by a single top-mounted control unit that operates the system as one fully integrated solution.
With the ability to scale up to 1.23MWh, IP65 protection, integrated heating and built-in fire suppression, this system is engineered for reliable performance in demanding UK environments.
System Overview
Each 48.3kWh stack consists of:
• 3 × 16.1kWh LiFePO₄ battery modules
• Integrated top-mounted control unit
• Heavy-duty base plate structure
• Built-in 350A isolation breaker
Once assembled, the control unit manages all modules as one unified battery system — simplifying commissioning, inverter communication, monitoring and servicing.
The modular architecture allows additional stacks to be added at any time, making this solution ideal for phased commercial installs or growing energy demand.
Advanced Integrated BMS
A high-performance Battery Management System delivers:
• Precise charge & discharge control
• Full protection against over/under voltage & temperature
• Support for high-power inverter systems
• Long-term reliability and system stability
Seamless Inverter Integration
CAN & RS485 communication enables compatibility with leading inverter brands including:
• Victron
• LuxPower
• Sunsynk
• Solis
• Voltronic
• Voltacon
Ideal for hybrid, backup and off-grid applications.
Fully Scalable Architecture
• 1 × stack = 48.3kWh
• Multiple stacks connected in parallel
• Scales up to 1.23MWh total capacity
Perfect for commercial properties, agricultural sites, workshops, warehouses and large residential installs.
IP65-Rated Construction
A robust, sealed enclosure protects against dust and moisture, allowing:
• Indoor installation
• Plant room installation
• Outdoor installation (where suitable)
Built for real-world environments.
Integrated Fire Suppression
Heat-activated aerosol fire suppression system provides:
• Automatic internal protection
• No external maintenance requirements
• Enhanced site safety compliance
Cold-Weather Ready (Down to –15°C)
Integrated battery heating enables:
• Safe low-temperature charging
• Reliable winter operation
• Installation in unheated plant rooms and outbuildings
Operating conditions:
• Charge: 0–45°C (with heating enabled)
• Discharge: –20–45°C
JK 2A Active Cell Balancing
Continuous active balancing improves:
• Cell voltage equalisation
• System efficiency
• Long-term lifespan
• Performance stability under load
High Output Performance
• 51.2V (48V nominal) low-voltage system
• 300A maximum charge & discharge current
• Designed to support high-demand inverters
• Ideal for backup, peak shaving & off-grid applications
Built-In 350A Breaker
Integrated breaker allows full system isolation for:
• Maintenance
• Fault conditions
• Emergency shutdown
Warranty & Support
• 6-Year Manufacturer Warranty
• 10 Years UK-Based Customer Support
Technical Specifications
| Specification | Details |
|---|---|
| Model | FE51.2-48.3 |
| Rated Energy | 48.3kWh |
| Nominal Voltage | 51.2V |
| Operating Voltage Range | 43.2V – 57.6V |
| Configuration | 3 × 16S1P (3 × 16.1kWh modules) |
| Capacity | 314Ah |
| Cycle Life | 8,000 cycles @ 91% DOD |
| Max Discharge Current | 300A |
| Max Charge Current | 300A |
| Working Temperature (Charge) | 0–45°C (with heating) |
| Working Temperature (Discharge) | –20–45°C |
| Weight | 394kg |
| Ingress Protection | IP65 |
| Communication | CAN / RS485 |
What’s Included
The system is supplied with:
✔ Pre-Terminated 95mm² Battery Power Cables
Heavy-duty, high-current cables supplied ready terminated for fast installation.
Allows:
• Direct battery-to-inverter connection
• Connection via external DC busbar (where required)
✔ Amphenol-Terminated Battery Interconnect Cables
• Secure locking connectors
• Low-resistance current transfer
• Reliable parallel stack expansion
✔ 1.5m Communication Cable
Enables:
• CAN / RS485 communication
• Inverter control
• System monitoring integration
Installation Guidance
The supplied 95mm² power cables are compatible with most inverter systems.
In some installations:
• Battery cables may be routed to a DC busbar
• Manufacturer-supplied inverter leads may be used for final inverter connection
