Fogstar Energy IP65-Rated 48V 16.1kWh Expansion Battery Module
Battery module only. A stack control unit and base plate are required and are not included.
Stock update: The next batch is due in February 2027. Existing orders are unaffected and will ship on their original date.
The Fogstar Energy 16.1kWh Expansion Battery Module adds capacity to an existing Fogstar Energy Modular Battery Stack.
It's a single 51.2V LiFePO₄ module for installers adding storage to a stack that already has a compatible control unit, base plate and main breaker fitted. It can't be used as a standalone battery.
The module slots into the existing stack and is managed by the control unit already on site, so capacity can be increased without replacing any of the original hardware. The IP65 enclosure, integrated heating and built-in fire suppression match the rest of the modular range.
Key Features
For Existing Stacks
Built to expand a Fogstar Energy Modular Battery Stack that's already installed.
Control Hardware Not Included
No stack control unit, LCD touchscreen, base plate or main breaker. The module runs through the control unit, touchscreen and breaker already fitted to the stack.
Direct Integration
Connects straight into existing Fogstar Energy control units and stack configurations.
Up to 64.4kWh per Stack
Add modules one at a time, up to a maximum of four (64.4kWh) in a single stack.
IP65 Enclosure
Sealed against dust and moisture for indoor or outdoor installation.
Fire Suppression
A heat-triggered aerosol unit inside the module activates automatically, with no maintenance needed.
Low-Temperature Operation
Built-in heating allows safe charging in the cold and operation in ambient temperatures down to –20°C.
Active Balancing
A 2A JK active balancer keeps cell voltages equalised for better efficiency and a longer service life.
High Output
51.2V (48V) LV module suited to high-demand inverters and large backup or off-grid systems.
Warranty & Support
6-year warranty with 10 years of UK-based customer support.
Module BMS
150A SEPLOS BMS for dependable protection.
Compatibility
Only for use with Fogstar Energy Modular Battery Stack systems already fitted with:
- Stack control unit
- LCD touchscreen interface
- Battery base plate
- Main breaker assembly
For a new installation, the control unit and stack hardware will also be needed.
16.1kWh Technical Specifications
Rated Energy: 16.1kWh
Nominal Voltage (V): 51.2V
Operating Voltage (V): 43.2V – 57.6V
Cycle Life: 8,000 cycles at 91% DOD
Configuration: 16S1P
Operating Temperature: Charge 0 – 45°C (with heating). Discharge –20 – 45°C
Maximum Discharge Current: 150A
Maximum Charge Current: 150A
Capacity: 314Ah
Communications: CAN / RS485
Ingress Protection: IP65
In the Box
Supplied:
- 1 × 16.1kWh battery module
- Module interconnection cables with Amphenol connectors
- Communication cable
Not supplied:
- Stack control unit and LCD touchscreen
- Battery base plate
- Main breaker assembly
Always make all negative connections before the positive.
➡️ Download Specification Sheet
➡️ Download User Manual
➡️ Download Installation Wiring Guide
➡️ Download Warranty Booklet