The SUNSYNK-G5.1 is a high-performance lithium iron phosphate (LiFePO₄) battery designed for efficient energy storage in residential and commercial systems. Engineered for safety, scalability, and longevity, it integrates a smart BMS (Battery Management System) for optimal performance and is compatible with SUNSYNK inverters. Ideal for space-constrained environments, it delivers reliable backup power with minimal maintenance.
Product FeaturesWall-mounted design for quick and easy installation (support 19-inch standard cabinet)High safety LiFePO₄ chemistry with long cycle lifeBuilt-in intelligent BMS with comprehensive protectionParallel configuration up to 32 units (163.8kWh total)Remote upgrade capability (SUNSYNK inverter compatible)Eco-friendly and non-toxic materialsWide operating temperature range with natural coolingLED indicators for SOC, working, alarm, and protection statusesSpecifications:Battery Chemistry: LiFePO₄Nominal Capacity: 100AhNominal Voltage: 51.2VOperating Voltage Range: 44.8V – 57.6VEnergy Capacity: 5.12kWhUsable Energy: 4.61kWhRecommended Charge/Discharge Current: 50AMaximum Charge/Discharge Current: 100APeak Current (2 mins @ 25°C): 150ARecommended Depth of Discharge (DOD): 80%Cycle Life: ≥6000 cycles (80% DOD @ 25°C, 70% EOL)Dimensions (W × H × D): 440 × 600 × 133 mmWeight: 44kgInstallation Type: Wall-mounted (supports 19-inch standard cabinet)Enclosure Protection Rating: IP20Operating Temperature:Charging: 0°C to +55°CDischarging: -20°C to +55°CStorage Temperature: -20°C to +35°CHumidity Range: 5% – 95%Maximum Altitude: ≤2000mCommunication Ports: CAN2.0, RS485Warranty: 5 years or 8MWh throughput (whichever comes first)Certifications: UN38.3












