Solar MD SS4143 14.3kWh 51.2V Advanced LiFePO4 Wall-Mount Battery
Overview of the Solar MD SS4143 14.3kWh Battery
The Solar MD SS4143 is a high-capacity low-voltage lithium iron phosphate (LiFePO4) battery designed for advanced residential and commercial energy storage applications. With a nominal voltage of 51.2V and a rated energy capacity of 14.3kWh, the SS4143 delivers high efficiency, strong discharge performance, and long cycle life in a compact wall or floor-mounted enclosure.
What the Solar MD SS4143 Battery Is Designed to Do
The SS4143 battery stores DC electrical energy and supplies it to compatible low-voltage inverter and energy management systems. It is designed to:
- Provide reliable backup power during grid outages
- Support daily cycling in hybrid and off-grid systems
- Increase solar self-consumption in grid-tied installations
- Scale system capacity by connecting multiple batteries in parallel
What the Solar MD SS4143 Battery Is Not
This product is a battery only and does not perform inverter functions. Specifically:
- It is not an inverter and cannot generate AC power
- It does not include MPPT charge controllers
- It does not connect directly to photovoltaic panels
- It must not be used in high-voltage battery systems
System Type and Voltage Class
The Solar MD SS4143 is designed for 48V-class low-voltage battery systems.
- Nominal battery voltage: 51.2V
- Operational voltage range: 44.8V to 55.6V DC
- Low-voltage DC architecture compatible with hybrid and off-grid inverters
Battery Chemistry and Cell Technology
The SS4143 uses premium lithium iron phosphate (LiFePO4) cells manufactured by CATL. This chemistry provides:
- Excellent thermal stability and safety
- High energy density in a compact form factor
- Stable discharge platform under continuous load
Battery Management System and Energy Control
Each Solar MD SS4143 battery includes an in-house designed battery management system. The BMS provides:
- Precise cell voltage measurement
- Built-in temperature sensors
- Voltage management to prevent cell damage
- Cell balancing for extended lifespan
- State-of-charge calculation and control
Charge and Discharge Performance
Charge and Discharge Specifications
- Nominal power at 0.7C: 10.0kW
- Maximum charge and discharge current: 200A
- Charging efficiency: 99%
Scalability and Parallel Expansion
The SS4143 features a modular architecture that allows system expansion.
- Multiple batteries can be connected in parallel
- System capacity scales without changing system voltage
- Each battery maintains independent BMS control
Communication, Monitoring, and Control
The SS4143 integrates with Solar MD’s advanced energy management ecosystem.
- CANBUS and RS485 communication
- Integration with supported inverters and energy meters
- Compatibility with the Solar MD Logger V2 device
- Remote monitoring via the mypower24 management platform
Technical Specifications – Solar MD SS4143
- Battery chemistry: LiFePO4
- Cell manufacturer: CATL
- Rated energy capacity: 14.3kWh
- Nominal voltage: 51.2V
- Operational voltage range: 44.8V – 55.6V
- Cycle life: ≥6000 cycles at 25°C
- Charging efficiency: 99%
Physical Specifications and Installation
The Solar MD SS4143 supports both wall-mounted and floor-mounted installation.
- Installation type: Wall-mounted or floor-mounted
- Dimensions (W × D × H): 674 × 187 × 606 mm
- Weight: 118 kg
Environmental and Compliance Specifications
- Operating temperature range: 0°C to 50°C
- Storage duration: 6 months at 25°C
- Safety and EMC compliance: CE, EN 55016, IEC 61000
- Cell certifications: IEC 62619, UN38.3, UN3480, UL 1642, UL 1973
Typical Applications for the Solar MD SS4143 Battery
- Residential solar energy storage systems
- Hybrid and off-grid solar systems
- Grid-tied energy storage installations
- Residential and commercial UPS systems
FAQ
Frequently Asked Questions
What type of systems is the Solar MD SS4143 designed for?
The SS4143 is designed for low-voltage residential and commercial systems, including off-grid, hybrid, grid-tied, charger-based, and UPS energy storage installations.
How much power can the SS4143 deliver?
The battery is rated for a nominal power output of 10.0kW at a 0.7C rate and supports a maximum charge and discharge current of 200A, making it suitable for medium to larger inverter systems.
Is the Solar MD SS4143 suitable for daily cycling?
Yes. With a cycle life of at least 6000 cycles at 25°C, the SS4143 is designed for daily charge and discharge operation.
Can multiple SS4143 batteries be connected together?
Yes. Multiple batteries can be connected in parallel to increase total energy capacity and available discharge current while maintaining a 51.2V system voltage.
Which inverter brands are compatible with the Solar MD SS4143?
Based on manufacturer documentation, the SS4143 integrates with a wide range of inverter brands via CANBUS and RS485 communication, including Sunsynk, SMA, Deye, Microcare, Victron Energy, Sungrow, GoodWe, Sermatec, Solis, ABB, Huawei, Sofar, and Voltronic when configured with the correct communication settings.
Does the battery support monitoring and remote management?
Yes. When used with the Solar MD Logger V2 device and the mypower24 platform, the battery supports real-time monitoring, system analytics, and secure remote management.
Can the SS4143 be wall-mounted?
Yes. The SS4143 supports both wall-mounted and floor-mounted installation depending on site requirements and structural considerations.
Is the SS4143 suitable for UPS applications?
Yes. The stable discharge platform, fast response, and advanced BMS make the SS4143 suitable for residential and commercial UPS systems.
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