51.2V Household Residential Storage Battery 50ah Lithium Deep Cycle Battery
Product Description
51.2V 50Ah 16S wall-mounted solar household LiFePO4 power wall deep cycle lithium battery for energy storage
Battery Features:
Charging voltage: Each lithium iron phosphate (LiFePO4) cell has a nominal voltage of 3.2V. In a 16S configuration, the maximum charge voltage would be 16 * 3.2 = 51.2V.
Charging current: The battery has a capacity of 50Ah, so it could accept a maximum charge current of 50A before hitting the 1C rate limit (1C = charge in 1 hour).
Discharging voltage: As the battery discharges, the cell voltage will drop slowly from 3.2V. The low voltage cut-off per cell is around 2.5V to prevent over-discharge. For a 16S pack this would be around 2.5V * 16 = 40V.
Discharging current: The maximum continuous discharge current would typically be limited to the 1C rate of 50A to maintain battery life.
Charge/discharge Termination: Charging is terminated when the voltage reaches 51.2V. Discharging ends when the voltage drops below the low voltage cut-off, usually set by the battery management system.
Expected Lifespan: When properly maintained, a LiFePO4 battery can last over 5000 cycles or 10-15 years of use depending on depth of discharge in each cycle.
| Items | Specification |
|---|---|
| Cell Type | LiFePO4 (Customizable: LiFePO4 / NCM / Prismatic / Cylindrical) |
| Nominal Voltage | 51.2V |
| Battery Capacity | 50Ah |
| Nominal Energy | 2.56kWh (2560Wh) |
| Dimension [L*W*H] | 350*335*148 mm (13.78*13.19*5.83 inch) (Customizable Dimension) |
| Weight | ≈23kg (50.7 lbs) |
| Working Voltage | 40V~58.4V |
| Charge Voltage | 58.4V |
| Discharge Cut-off Voltage | 40V |
| Maximum Charge Current | 50A Continuous |
| Maximum Discharge Current | 50A Continuous |
| Fast Charging | Supports Fast Charging |
| Charging Temperature | 0~55°C (32℉~131℉) |
| Discharging Temperature | -20~60°C (-4℉~140℉) |
| Operating Humidity Range | <30% |
| Series/Parallel Number | 16S1P |
| Max. Parallel Connection | 16 |
| Cycle Life (25°C / 77℉@60% DOD) | >8000 Cycles |
| Cycle Life (25°C / 77℉@80% DOD) | >6000 Cycles |
| Self-Discharge Rate | <3% per month (25°C / 77℉) |
| IP Grade | IP21 (Higher grade optional) |
| Battery Case | Steel |
| Monitoring & Protection | Smart BMS: Overcharge / OverDischarge / Overcurrent / OverTemperature / ShortCircuit |
| Communication | RS485 / CAN |
| Optional Functions | Bluetooth / WiFi / Circuit Breaker / Heating / Active Balance / LED Touch Screen / APP |
| Accessories | Inverter Power Cable, Parallel Cable, Communication Cable, Grounding Wire |
| Compatible Inverters | Victron / GOODWE / Solis / Growatt / SMA / SAJ / Luxpower / SRNE / Deye / Voltronic, etc. |
| Color | White / Gray / Black |
| Design Life | 20 Years |
| Warranty | 5 Years |
| User Manual | With the Battery Packaging |
| Certification & Safety Standard | UL / FCC / CE / IEC / RoHS / UN38.3 / MSDS |
Maintenance requirements for LiFePO4 batteries in a residential solar + storage system
Monitoring battery state of health (SOH) - Periodic checks via the BMS can catch any capacity fade issues early.
Balancing cells - Equalizing charge periodically ensures all cells remain balanced for maximum capacity.
Temperature management - Batteries need to be kept within operating temperature range (usually 0-45°C).
Tightening connections - Check that all electrical connections are clean and tight, especially after vibration.
Clean environment - Keep areadust/debris free for cooling and prevent corrosion on terminals.
Software updates - Upgrade BMS firmware to fix any issues and add new features.
Full discharge/charge cycles - Once every 6 months, fully discharge then charge the battery to recalibrate BMS.
Records logging - Track cycles, kWh in/out over time for warranty purposes.
Physical inspection - Check for cracks, leaks or other signs of damage or swelling.
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