Pre-Order | Fogstar Energy 16.1kWh 51.2V ECO Solar Battery (2026 Edition)
Fogstar Energy 16.1kWh 51.2V ECO Solar Battery
- 16.1kWh, 51.2V ECO LiFePO₄ solar battery for dependable storage in homes, workshops, warehouses and logistics sites, with an IP65-rated enclosure and built-in fire suppression.
- SEPLOS 200A BMS with 2A JK active balancer, integrated heating and up to 8,000 cycles at around 91% DOD for long service life and stable performance.
- Scalable up to 16 units in parallel, with CAN / RS485 / RS232 and preloaded protocols for popular LV inverters including Sunsynk, Solis, Victron and more.
Fogstar Energy 16.1kWh 51.2V ECO Solar Battery
The Fogstar Energy 16.1kWh 51.2V ECO solar battery is a high-capacity LiFePO₄ cabinet built for practical, everyday energy storage in UK homes, commercial premises and light industrial environments. With 314Ah at 51.2V and a robust enclosure, it is well suited to garages, plant rooms, small warehouses and utility areas where reliability and protection matter.
The ECO model combines a SEPLOS 200A BMS, 2A JK active balancer, integrated heating and an automatic aerosol fire suppression unit to help protect the system over many years of cycling. It can be used for whole-house backup, peak shaving, EV charger support, small business resilience or off‑grid and hybrid systems when paired with a suitable inverter.
Key features
- 16.1kWh ECO LiFePO₄ battery at 51.2V nominal, delivering 16,076.8Wh of storage for residential and commercial loads.
- Sturdy cabinet with locking / levelling wheels for flexible indoor placement in garages, utility rooms, plant spaces and dry industrial areas.
- SEPLOS 200A BMS and 2A JK active balancer for improved efficiency, pack stability and extended cell life.
- Integrated heating system for safe charging at low temperatures and reliable operation down to –20°C.
- Built-in aerosol fire suppression unit for automatic internal fire response, with no routine maintenance.
- Communications via CAN, RS485 and RS232, with preloaded protocols for leading 48V LV inverters including Sunsynk, Solis, Victron, LuxPower and Voltacon.
- Parallel-ready design: connect up to 16 identical ECO batteries in parallel for higher capacity systems (series connection not supported).
Technical specifications
Headline data
- Model: 16.1kWh 51.2V ECO 314Ah LiFePO₄ battery.
- Energy: 16.1kWh (16,076.8Wh total).
- Nominal voltage: 51.2V.
- Chemistry: LiFePO₄.
- Nominal / minimum capacity: 314Ah.
- ECO series with JK active balancer and heating.
Electrical performance
- Rated voltage: 51.2V.
- Maximum charge voltage: 57.6V.
- Bulk / absorption: 57.6V.
- Float: 55.2V.
- Low DC cut-off: 43.2V.
- Nominal capacity: 314Ah.
- Minimum capacity: 314Ah.
- Total energy: 16,076.8Wh.
- Maximum charge current: 200A.
- Maximum discharge: 200A.
- Cell configuration: 16S1P.
- Cycle life: 8,000 cycles at around 91% DOD (per manufacturer specification).
- Design life: 15 years.
Battery management and balancing
- BMS: SEPLOS 200A.
- Active balancer: JK 2A active balancer.
- Balancing operation: transfers energy between cells when significant disparity is detected, improving efficiency, pack stability and lifespan.
- Functions (BMS): external switch function, current limiting, display screen, storage function, pre-charge, CAN communication, secondary protection, Bluetooth (per BMS function table).
Temperature and environmental
- Discharge temperature range: –20°C to 40°C.
- Charging temperature range: –10°C to 40°C.
- Storage temperature (1 month): –10°C to 35°C.
- Storage temperature (3 months): around 25 ±2°C.
- Relative humidity (datasheet): 65% to 20% (as printed; follow manufacturer guidance).
- Integrated heating system activates below 5°C, enabling safe charging at 0°C and reliable operation in ambient temperatures down to –20°C.
- Ingress protection rating: IP65 (cabinet, per ECO datasheet and product pages).
Fire suppression
- Built-in fire suppression unit: ultra-thin, automatic aerosol device inside the enclosure.
- Activation temperature: around 170°C.
- Operation: releases a fast-acting potassium aerosol that disrupts the fire’s chemical reaction for rapid suppression and zero routine maintenance.
- Application: suitable for enclosed electrical spaces inside the cabinet.
Mechanical and dimensions
- Weight: 119.5kg.
- Dimensions (battery system assembly): approximately 898.5mm (L) × 1041mm (W) × 1260mm (H) for the full assembled system used in the underlying 314Ah cabinet design; the ECO cabinet shown in the datasheet is a compact wheeled enclosure – refer to manufacturer drawing for exact envelope.
- Cabinet features: wheels with locking / levelling mechanism.
- Terminals: positive and negative terminals clearly labelled; dedicated battery-to-battery link points and CAN/RS485 interface.
Connections and communications
- Communication ports: CAN, RS485, RS232.
- CAN / RS485 port for inverter and system integration; RS485 for internal parallel communication between units.
- Preloaded inverter protocols: compatible with multiple LV inverters including Sunsynk, Solis, Victron and more; additional note that protocols include (but are not limited to) LuxPower and Voltacon in manufacturer literature.
- Inverter protocol updates: selectable via the ECO battery’s interface; no complex software downloads required when changing protocol.
Parallel connectivity
- Parallel connectivity: up to 16 units can be connected in parallel.
- Series connection: not supported; use only in compatible 51.2V (48V nominal) systems and do not mix with other chemistries or models.
- Battery cables supplied: 1.5m, 50mm² battery cables with M8 ring lugs, suitable for direct connection between battery and inverter or via an external busbar.
- Installation note: connect all negative conductors before attaching the positive.
- Communication cable supplied: 1.5m communication cable for straightforward data integration.
Safety and handling
- Significant weight (119.5kg); at least six people should assist with lifting, in line with safety regulations, or use appropriate lifting equipment.
- Installation only in suitable, safe environments by a qualified person, following all applicable electrical codes.
- Use only with compatible 51.2V systems; never in series or with other chemistries.
- Ensure correct grounding, polarity, programming, cabling and torque; keep away from heat sources, hazards, pets and children.
- If overheating or burning smells occur, trip the breaker and call emergency services.
- Clean only with a dry cloth; do not use liquids, spray cleaners, aerosols or solvents.
Warranty (manufacturer)
- Battery warranty: 6‑year manufacturer warranty.
- Customer support: 10 years of support for the ECO battery.
- Coverage: BMS failure, cell failure, temperature sensors, charging / discharging faults and internal corrosion, subject to full warranty terms on the manufacturer’s website.
- Manufacturer contact for warranty: customerservice@fogstar.co.uk, 01527 757980 (include proof of purchase and description of issue).
Shipping
Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If a shipping rate is not shown at checkout, please contact us on +44 2080640335 or info@energian.co.uk for a quote.
UK expert support
Energian offers UK-based expert support to help you specify and integrate Fogstar Energy IP65-rated 16.1kWh 51.2V ECO solar batteries into new or existing systems. Where a complete system is required, we can arrange installation through trusted specialist partners to ensure compliance with local regulations and best practice.
Contact us via phone, email or live chat, or visit our office for an in-person consultation on system sizing, inverter pairing, protection, and installation requirements for your site.