The Sunsynk SUN-X-5.12-F is a high-performance lithium iron phosphate (LiFePO4) battery designed for residential and light commercial energy storage applications. Engineered for reliability, safety, and long service life, this 5.12kWh battery provides dependable backup power and seamless integration with compatible solar and hybrid inverter systems.
Its compact wall-mounted design, advanced battery management system (BMS), and scalable parallel capability make it an ideal solution for solar self-consumption, backup power, and off-grid energy storage installations. Built with durable IP65-rated protection, the battery is suitable for both indoor and protected outdoor environments.
Key Features
- 5.12kWh usable lithium energy storage capacity
- Advanced LiFePO4 battery chemistry for enhanced safety and longevity
- Long cycle life exceeding 6000 cycles
- Scalable system design with up to 8 batteries in parallel
- Integrated Battery Management System (BMS)
- Supports RS485 and CAN communication protocols
- Optional Wi-Fi monitoring capability
- Wide operating temperature range
- IP65-rated enclosure for increased environmental protection
- Compact wall-mounted or floor-standing installation options
- High depth of discharge of up to 95%
- Suitable for residential and commercial backup applications
Technical Specifications
| Specification | Details |
|---|---|
| Model | SUN-X-5.12-F |
| Battery Chemistry | LiFePO4 |
| Nominal Energy | 5.12kWh |
| Nominal Capacity | 100Ah |
| Rated Voltage | 51.2Vdc |
| Operating Voltage Range | 43.2Vdc – 57.6Vdc |
| Max Charge/Discharge Current | 50A / 100A |
| Recommended Scalability | ≤3 in parallel |
| Maximum Parallel Support | 8 units |
| Depth of Discharge | 95% |
| Communication | RS485, CAN, Optional Wi-Fi |
| Dimensions (W × D × H) | 420 × 140 × 650mm |
| Weight | 46kg |
| Installation | Wall-mounted / Floor-standing |
| Protection Rating | IP65 |
| Protective Class | Class I |
| Operating Temperature (Charge) | -10°C to 50°C |
| Operating Temperature (Discharge) | -20°C to 50°C |
| Humidity | 5% – 95% RH (Non-condensing) |
| Maximum Altitude | <2000m |
| Cycle Life | >6000 cycles @ 25°C |
| Certifications | IEC62619, CE, UN38.3, ROHS |
| Warranty | 5 Years / 10 Years* |
*Warranty period depends on the final installation site of the inverter.
Important:
All solar products, power systems, water heating and gas products and their components must be installed by appropriately qualified personnel. All installations must adhere to local wiring regulations and standards. Sustainable Online will not be held liable for any product malfunctions as a result of incorrectly installed systems.

