FOYASOLAR 48V/51.2V-280Ah ON/Off-grid hybrid solar energy storage system

※ 15kWh 100% Usable Capacity | Zero Derating, Full Output：Engineered to deliver the full 14.3kWh (14,336Wh) of energy without capacity derating, each battery supports continuous 15kW (51.2V × 280A) power output. Every unit undergoes 72-hour cycle stress testing and 100% cell voltage matching before shipment, guaranteeing stable performance in commercial solar storage and backup systems.

※ Military-Grade LiFePO₄ Cells | 6,000 Cycles @ 80% DoD：Featuring automotive-grade prismatic LiFePO₄ cells with ≥6,000 deep cycles at 80% Depth of Discharge (DoD) – validated by third-party labs (IEC 62619). This translates to 15+ years of daily use and 8× the lifespan of lead-acid batteries, reducing long-term TCO (Total Cost of Ownership) by 60%.

※ 200A Smart BMS | 5-Layer Safety Architecture：Advanced 200A BMS with dual-processor redundancy provides:

• Real-time fault diagnosis for overvoltage/undervoltage (±10mV precision)

• Dynamic current control (short-circuit response <50μs)

• 3D thermal management (-20°C heating/+60°C cooling)

• Cell auto-balancing (±30mV balancing current)

• IP65 fireproof enclosure (UL94 V-0 rated)
  
  

※ 230kWh Scalability | Plug-and-Play Parallel Expansion：Support up to 16 units in parallel via proprietary Parallel-Smart technology (no master battery required). Achieve 230.4kWh total capacity (51.2V × 280Ah × 16) with unified RS485/CAN communication. Ideal for microgrids requiring 100kW+ continuous output.

※ Ultra-High Efficiency | 98% Round-Trip Energy Retention：With <0.3% self-discharge/month and 98% round-trip efficiency, the system captures 18% more solar energy vs. lead-acid alternatives. Saves ~$1,200/year in lost energy for a 20kW solar array .

※ Industrial-Grade Resilience | -20°C to 60°C Operation Built for harsh environments with:

• Low-temp self-heating (-20°C charging @ 0.2C)

• High-temp throttling (60°C discharge protection)

• Vibration resistance (MIL-STD-810G certified)

• Humidity tolerance (95% non-condensing)
  
  

※ Zero Maintenance | 10-Year "Set-and-Forget" Design：Eliminates lead-acid maintenance costs:

• No acid leaks (sealed solid-state structure)

• No capacity fading (<20% degradation after 6k cycles)

• No equalization charging (adaptive cell balancing)

• Remote firmware updates via FOYA Cloud APP