Dyness Stack 280 HV Battery Module 14.34 kWh
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The Dyness Stack 280 HV Battery Module (model S51280) is a high-voltage LiFePO4 battery module with a nominal capacity of 14.34 kWh (13.62 kWh usable) per module. The module operates at a nominal voltage of 51.2 V and forms part of the modular STACK280 system. By connecting 3 to 15 modules in series, a system voltage of 134 to 876 V is achieved. Up to 12 clusters can be connected in parallel for greater capacity. The module requires a separate Dyness Stack 280 BDU & Base control unit for operation.
- High energy density: 14.34 kWh nominal (13.62 kWh usable) per module at 280 Ah and 51.2 V nominal.
- Maximum scalability: 3–15 modules in series (134–876 V), up to 12 clusters in parallel – up to 215 kWh per series string.
- High cycle life: ≥8000 charge/discharge cycles and 10-year manufacturer's warranty.
- Safe LiFePO4 chemistry: thermally stable, integrated aerosol fire extinguisher included.
- Certified: CE, EMC and UN38.3 certified for safe installation and operation.
Technical notes for installers
The Stack 280 HV Battery Module is suitable for indoor use only (IP20). Each module weighs 110 kg and has dimensions of 770 × 425 × 230.5 mm; installation requires at least two people. When installing more than 5 modules in series, use of a crane or lifting equipment is recommended. A full stack of 8 modules + BDU reaches a height of approximately 2208 mm; a minimum clearance of 450 mm above the system is required (floor to ceiling ≥ 2658 mm). If installing on an upper floor, a professional assessment of the floor's load-bearing capacity is mandatory. Modules are stacked via locating pins and secured with four M5×30 screws on the sides. The recommended charge/discharge current is 140 A; maximum continuous current 200 A and peak current 290 A for 2 minutes at 25 °C.
| Parameter | Value |
|---|---|
| Chemistry | LiFePO4 |
| Model number | S51280 |
| Nominal voltage per module | 51.2 V |
| Operating voltage per module | 44.8–58.4 V |
| Capacity per module | 280 Ah |
| Nominal energy per module | 14.34 kWh |
| Usable energy per module | ~13.62 kWh (95% DoD) |
| Depth of discharge (DoD) | 95% |
| System voltage (3–15S) | 134–876 V |
| Recommended charge/discharge current | 140 A |
| Max. continuous charge/discharge current | 200 A |
| Peak discharge current | 290 A (2 min, 25 °C) |
| Cycle life | ≥8000 cycles |
| Warranty | 10 years |
| Max. modules in series | 15 |
| Max. parallel clusters | 12 |
| Module dimensions (W × D × H) | 770 × 425 × 230.5 mm |
| Weight per module | 110 kg |
| Protection class | IP20 (indoor use only) |
| Operating temperature charging | 0 °C to +50 °C |
| Operating temperature discharging | –20 °C to +50 °C |
| Optimal ambient temperature | 18–30 °C |
| Cooling | Forced air cooling |
| Communication (via BDU) | CAN / RS485 (RJ45) |
| Certifications | CE, EMC, UN38.3 |
| Fire protection | Integrated aerosol fire extinguisher |
What is included in the Dyness Stack 280 HV Battery Module package?
The package (Package B) contains the following items:
| Item | Quantity |
|---|---|
| S51280 Battery Module | 1 |
| Flat-head Phillips screws M5×30 | 4 |
| Packing list | 1 |
The Dyness Stack 280 BDU & Base (control unit, Package A) is not included and is sold separately.
Which inverters are compatible with the Dyness Stack 280?
The STACK280 system communicates via CAN or RS485 (RJ45 connector via the BDU, pin 1 = 485_B, pin 2 = 485_A, pin 4 = CANH, pin 5 = CANL) and is compatible with the following inverters, among others: Solis, Growatt, Sosen, Solinteg, Atess, Magarevo, GoodWe (GDW), Deye, SINENG, SINEXCEL and Megarevo. Consult the full compatibility list for model-specific settings.
What are the installation requirements for the Dyness Stack 280 HV Battery Module?
Installation must be carried out by certified electricians in accordance with national standards (e.g. BS 7671, IEC 60364). The system is suitable for indoor use only (IP20). Each module weighs 110 kg; installation requires at least two people. For more than 5 modules, a crane is recommended. A full stack of 8 modules + BDU (height ±2208 mm) requires a minimum clearance of 450 mm above the system (floor to ceiling ≥ 2658 mm). If installing on an upper floor, a professional assessment of the floor's load-bearing capacity is required. More than 8 modules must be split across two columns. Use the supplied CAN resistor (120 Ω, included in the BDU package) on the appropriate ports in parallel systems.
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