Fogstar Energy IP65-Rated 16.1kWh 51.2V Solar Battery

  
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Fogstar Energy IP65-Rated 16.1kWh 51.2V Solar Battery

  • High-capacity 16.1kWh, 51.2V LiFePO4 solar battery with IP65 enclosure for reliable indoor or outdoor energy storage in UK homes, businesses and logistics sites.
  • Integrated heating, active balancing and PACE 200A BMS deliver long cycle life, strong performance and stable operation from –20°C to 60°C.
  • Scalable up to 15 batteries in parallel with wide inverter compatibility via CAN, RS485 and RS232, ideal for larger commercial and industrial systems.

Fogstar Energy IP65-Rated 16.1kWh 48V Solar Battery

The Fogstar Energy IP65-rated 16.1kWh 48V solar battery is a heavy-duty, floor-standing LiFePO4 storage unit designed for demanding UK residential, commercial and industrial applications. With 16,076.8Wh usable capacity, integrated heating and a sealed IP65 enclosure, it suits garages, plant rooms, warehouses and covered outdoor locations where reliability and safety are essential.

A 200A PACE BMS, 2A active balancer and built-in aerosol fire suppression support long-term performance and protection, backed by a 10‑year manufacturer warranty. For larger systems, up to 15 units can be paralleled, making this solar battery a strong fit for backup power, peak shaving, EV charger support and off-grid or hybrid systems.

Key features

  • 16.1kWh LiFePO4 battery at 51.2V nominal, providing 16,076.8Wh of storage for whole-house, small commercial and light industrial loads.
  • IP65-rated steel enclosure for dust-tight, water-jet resistant installation in garages, plant rooms, workshops and sheltered outdoor areas.
  • PACE 200A BMS with 2A active balancer and Grade A LiFePO4 cells rated for up to 8,000 cycles at 80% DOD (95% DOD as of February 2026).
  • Integrated heating system allows safe charging at 0°C and reliable operation down to –20°C, supporting unheated spaces and UK winter conditions.
  • Built-in aerosol fire suppression system inside the case provides automatic, zero-maintenance protection in the event of an internal fire.
  • Preloaded inverter protocols and multiple comms ports (CAN, RS485, RS232) for straightforward integration with popular LV inverters including Victron, Luxpower, Sunsynk, Solis and others.
  • Parallel-ready design: connect up to 15 identical batteries in parallel for large capacity systems; series connection is not supported.

Technical specifications

Headline data

  • Energy: 16.1kWh (16,076.8Wh).
  • Nominal voltage: 51.2V.
  • Chemistry: LiFePO4.
  • Capacity: 314Ah (nominal and minimum).
  • IP rating: IP65.

Electrical performance

  • Rated voltage: 51.2V.
  • Maximum charge voltage: 57.6V.
  • Bulk/absorption voltage: 57.6V.
  • Float voltage: 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 current: 200A.
  • Active balancer current: 2A (JK active balancer).
  • Cell configuration: 16S1P.

Battery management and cells

  • BMS type: PACE 200A.
  • Balancer: 2A active balancer.
  • Cell type: Grade A EVE MB31 LiFePO4 cells (as per manufacturer description).
  • Design life: 15 years.
  • Cycle life: 8,000 cycles at 80% depth of discharge (95% DOD as of February 2026, per manufacturer testing).

Temperature and environmental

  • Discharge temperature: –20°C to 60°C.
  • Charging temperature: –20°C to 45°C (heater enabled).
  • Heater function: integrated heating system activates below 5°C, enabling safe charging at 0°C and reliable operation down to –20°C ambient.
  • Storage temperature (1 month): –20°C to 60°C.
  • Storage temperature (1 year): 0°C to 35°C.
  • Relative humidity: 45% to 85%.
  • Ingress protection rating: IP65 (sealed enclosure, dust-tight and protected against low-pressure water jets).

Mechanical and dimensions

  • Dimensions: 500mm (L) × 232mm (W) × 915mm (H).
  • Weight: 128.8kg.
  • Front panel layout: power button, integrated 250A breaker, positive and negative terminals, CAN/RS485/RS232 ports.
  • Form factor: free-standing cabinet with IP65 enclosure, designed for floor installation and secure positioning.

Connections and communications

  • Communication ports: CAN, RS485, RS232.
  • RS485A and RS485B ports for parallel communication between batteries.
  • CAN port for inverter and system integration.
  • Preloaded inverter protocols: compatible with multiple LV inverters including Sunsynk, Solis, Victron, Luxpower, Sofar and more (per manufacturer documentation).
  • Inverter protocol selection via LCD touchscreen; no external software downloads required.

Fire suppression

  • Built-in fire suppression unit: ultra-thin, automatic aerosol device mounted inside the battery enclosure.
  • Activation temperature: approximately 170°C.
  • Suppression medium: potassium-based aerosol designed to disrupt combustion chemistry and suppress internal fires rapidly.
  • Maintenance: sealed, non-serviceable unit providing automatic protection for enclosed electrical spaces.

Parallel connectivity and system expansion

  • Parallel connectivity: up to 15 identical 16.1kWh batteries can be connected in parallel.
  • Series connection: not supported; use only in 51.2V (48V nominal) systems.
  • Battery connections: supplied 1.5m battery cables with Amphenol connector for reliable battery-to-battery power linking.
  • Communication cables: 1.5m RS485/CAN cable and 1.8m PC cable included for configuration and diagnostics.
  • Installation note: always connect all negative conductors first, then positive.

Safety and handling

  • Significant weight (128.8kg); manufacturer guidance is to use at least six people or appropriate lifting equipment for safe handling, in line with safety regulations.
  • Install only in suitable environments by a qualified person, following all relevant electrical codes and standards.
  • Use only with compatible 51.2V systems; never connect in series or mix with other chemistries.
  • Ensure correct grounding, polarity, programming, cabling, torque and overcurrent protection.
  • Keep away from heat sources, hazards, pets and children; in case of overheating or burning smells, trip the breaker and contact emergency services.
  • Cleaning: dry cloth only; do not use liquids, solvents or aerosols.

Warranty (manufacturer)

  • Battery warranty: 10 years.
  • Coverage: BMS failure, cell failure, temperature sensors, charging/discharging faults and internal corrosion, subject to the manufacturer’s terms.
  • Support contact (manufacturer): customerservice@fogstar.co.uk, 01527 757980 (for warranty claims to Fogstar).

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 tailored quote.

UK expert support

Energian offers UK-based expert support to help you specify, design and deploy Fogstar Energy IP65-rated 16.1kWh 48V solar batteries in new or existing systems. For complete solutions that include inverters, switchgear and on-site installation, we can arrange installation through trusted specialist partners.

Contact us by phone, email or live chat, or visit our office for an in-person consultation to discuss suitability, system sizing, inverter pairing and installation requirements for your project.

Documents available for download