Fogstar Energy IP65-Rated 48V 48.3kWh Modular Battery Stack
This version comes with a stack control panel and base.
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Next available batch arriving February 2027: Orders placed before this update are unaffected and will ship as originally scheduled.
A 48.3kWh LiFePO₄ battery stack from Fogstar Energy, made for homes, commercial premises and light industrial sites that need serious storage capacity.
Rather than one heavy unit, the system arrives as three (3) 16.1kWh battery modules that stack onto a base plate, which makes moving, installing and adding to it much more manageable. A control unit on top of the stack brings all three modules together as one battery. It's housed in an IP65 enclosure with integrated heating and built-in fire suppression for safe, dependable running in tough conditions.
Three-Module Design
Made up of three 16.1kWh LiFePO₄ modules, so the system is easier to handle, install, service and expand.
Integrated BMS
Manages and protects the full stack, with support for high-power operation.
Wide Inverter Support
CAN and RS485 communication, with protocols for popular inverters including LuxPower, Sunsynk, Solis, Victron, Voltacon and more.
Sealed IP65 Housing
Protected against dust and moisture, so it can be installed indoors or outdoors.
Fire Suppression Built In
An automatic, heat-activated aerosol unit protects the inside of the battery, with no upkeep required.
Heated for Cold Conditions
On-board heating supports safe charging in low temperatures and operation in ambient conditions down to –20°C.
Cell Balancing
A 2A JK active balancer keeps cell voltages even, helping efficiency, stability and lifespan.
Built for High Loads
51.2V (48V) LV system for demanding inverters and large backup or off-grid setups.
6-Year Warranty
Plus 10 years of UK-based customer support.
Touchscreen Display
LCD screen for live monitoring and managing the system.
Isolation Breaker
A 350A breaker lets you safely isolate the whole stack for maintenance, faults or emergencies.
Seplos Module BMS
150A SEPLOS BMS for stable performance and reliable protection.
Grows With You
Each stack takes up to four modules (64.4kWh), and stacks can be connected in parallel for up to 1.28MWh.
Rated Energy: 48.3 kWh
Nominal Voltage (V): 51.2 V
Operating Voltage (V): 43.2 V – 57.6 V
Cycle Life: 8,000 cycles at 91% DOD
Configuration: 3 × 16S1P (three 16.1kWh modules)
Working Temperature: 0 – 45 °C Charge (with heating) and –20 – 45 °C Discharge
Maximum Discharge Current: 300 A
Maximum Charge Current: 300 A
Capacity: 942Ah
Weight: 394kg
Dimensions: 830L x 450W x 949H mm
Communications: CAN / RS485
Ingress Protection: IP65
Pre-terminated 95mm² battery power cables, for connecting directly to the inverter or via an external busbar.
Battery-to-battery cables with Amphenol connectors for secure, low-resistance links.
A 1.5m communication cable for system control and data.
The power cables suit most inverters. In some setups the battery cables may need to go to a busbar, using the inverter manufacturer's own leads for the final connection. Always connect all negatives before the positive.
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Our team are here to make the battery installation process simple. Please get in touch with any questions - we're always happy to help.
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