Stellars SBL 516 lithium iron phosphate batteries

SBL 516 LiFePO₂ Battery

The SBL 516 is Stellar's mid-capacity lithium iron phosphate battery, built for home solar backup and small business energy storage where a balance of capacity and footprint matters. At 51.2V nominal with 5.37kWh of nominal energy, it's sized for households wanting dependable overnight backup without the space demands of larger units.

Performance Parameters

• Cell Type: LiFePO₂
• Number of Cells: 16
• Nominal Voltage: 51.2V
• Operating Voltage: 44.8V–57.6V
• Nominal Energy: 5.37kWh
• Usable Energy: 4.8kWh
• Charge/Discharge Current (Recommended): 100A
• Charge/Discharge Current (Max): 100A

Communication

• Display: SOC, Faults, and Operating Status
• Communication Protocol: RS485/CAN

General Parameters

• Weight: 52.5kg
• Dimensions (W×H×D ±1mm): 420×660×160mm
• Parallel Connection: Up to 15 units (7.6kWh each) for scalable system capacity
• Life Cycle: ≥6000 cycles (25°C, 90% DOD, 1C, 70% EOL)
• Operating Temperature: Charge 0°C–50°C | Discharge -20°C–50°C
• Storage Temperature: -20°C–45°C (≤1 month) | -20°C–35°C (≤6 months)
• Relative Humidity: 5%–95% (non-condensing)
• Cooling Method: Natural Cooling
• Installation: Floor-standing/Wall-mounted, Indoor
• Ingress Protection Rating: IP21
• Maximum Operating Altitude: ≤2000m

Protection & Certification

• Protection Features: Overvoltage, Overcurrent, Short Circuit, and Overtemperature Protection
• Certification: CE, UN38.3