Please note: The Black 16.1kWh ECO is not available until January 2027. Orders for the Black version will be dispatched in January.
The Fogstar Energy 48V 16.1kWh ECO battery is a fully assembled, commercial-grade energy storage solution built for homes and small commercial installs, providing reliable performance, long cycle life, and seamless inverter integration.
Our 2026 version steps things up with integrated fire suppression for enhanced safety and a built-in heating system that enables charging all the way down to -10°C. Cold garages, outbuildings, and winter installs are no longer a problem.
Built using 3.2V 314Ah Grade A cells in a 1P16S configuration, managed by an intelligent 200A BMS and a JK 2A Active Balancer, this system delivers long life, stable performance, and peace of mind as standard.
Key Features
✓ Suitable for Home Installation
Within the 20kWh per-unit limit set by PAS 63100:2024 for battery storage in dwellings. For more info on PAS 63100:2024 regulations, click here to read the Fogstar Blog post covering all aspects of this.
Fully Assembled
Fully assembled and ready to install straight out of the box.
Integrated Fire Suppression
Automatic heat-activated aerosol system provides rapid response protection inside the battery.
Cold-Weather Ready
Integrated battery heating allows charging down to -10°C.
Scalable & Flexible
Connect up to 16 units. That’s up to 257.6kWh of storage.
Reliable Performance
6-year manufacturer’s warranty, backed by 10 years of Fogstar customer support.
Long Lifespan
Up to 8000 cycles at 91% Depth of Discharge.
Seamless Integration
Pre-loaded compatibility with LuxPower, Sunsynk, Solis, Victron, Voltacon and more.
Smart Connectivity
CAN and RS485 communication for smooth system integration.
User-Friendly Interface
Integrated LCD touchscreen for real-time monitoring and configuration.
Advanced Cell Management
Advanced 200A BMS paired with a JK 2A Active Balancer for optimal cell health.
Product Specifications
Rated Energy: 16.1kWh
Model: FE51.2V-16-LVFB
Nominal Voltage (V): 51.2V
Operating Voltage (V): 43.2V - 57.6V
Cycle Life: 8000 cycles (at 25°C 50A charge and discharge current) at 91% DOD
Cell Assembly: 1P16S
Working Temperature: -10°C - 40°C Charge. -20°C - 40°C Discharge
Rated Charge/Discharge Current (A): 200A/200A @25±2℃
Maximum Discharge Current: 200A
Capacity: 314Ah
Active Balancer: JK 2A
Weight: 122.5kg
Size: 898.5mm (H) x 415mm (L) x 260mm (W)
Pre-loaded compatibility: LuxPower, Sunsynk, Solis, Victron, Voltacon and more
Recommended accessory
Connecting multiple batteries in parallel?
The Fogstar Energy 800A Busbar connects up to four 48V batteries and two inverters, with a choice of fuse rating. Battery capacity and discharge capability should always be matched to your inverter output and expected system demand.
View the 800A Busbar →Not sure which inverter you need? Email customerservice@fogstar.co.uk or use our installer map to find your nearest Fogstar Approved Installer.
What's Included?
- 1.5m 50mm² battery cables with M8 ring lugs, suitable for direct inverter connection or via an external busbar.
- 1.5m communication cable for fast, hassle-free data integration.
Installation note: always connect all negative conductors before attaching the positive.
The supplied cables work with most inverter setups. In some installations, routing via a busbar and using manufacturer-supplied inverter leads may be required.
➡️ Download Specification Sheet
➡️ Download User Manual
➡️ Download Warranty Booklet