

Dyness Stack100 S51100 High Voltage Storage Battery 5.12kWh LiFePO4
The Dyness S51100 is the battery module that makes up the high voltage storage systems of the Dyness Stack100 series. Each module consists of 16 LiFePO4 cells for a nominal voltage of 51.2V, a capacity of 100Ah and a nominal energy of 5.12kWh. The modules are stacked and connected in series, so the tower works at high voltage even though the single module is at 51.2V.
A Stack100 tower can house from 3 to 15 modules, with nominal system voltages from 153.6V to 768V (operating range 134.4–864V) and energy from 15.36 to 76.80kWh. The module withstands charge and discharge currents up to 100A (1C), with a peak of 125A for 2 minutes, and declares a depth of discharge of 95% and over 8,000 cycles. Communication takes place via CAN/RS485 and the system is compatible with numerous high voltage hybrid inverters, including Goodwe, Solis, Deye, Solplanet, Solinteg, Sunways, Hoymiles, SAJ, Growatt, ATESS and Sinexcel.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | S51100 |
| Model | Dyness S51100 (Stack100 series) |
| Chemistry | LiFePO4 (lithium iron phosphate), 16 cells per module |
| Nominal energy | 5.12kWh |
| Usable energy | 4,86kWh (DoD 95%) |
| Rated voltage | 51.2V |
| Voltage range | System from 134.4V to 864V (nominal from 153.6V with 3 modules to 768V with 15 modules) |
| Capacity | 100Ah |
| Max charge current | 100A (1C) |
| Max discharge current | 100A (1C); peak 125A (1.25C) for 2 minutes at 25 °C |
| Charge/discharge power | Approx. 5.12kW per module (100A at 51.2V) |
| Depth of discharge (DoD) | 95% |
| Modules per tower / scalability | From 3 to 15 modules in series: from 15.36kWh (Stack100-3S) to 76.80kWh (Stack100-15S) |
| Compatible inverters | Goodwe, Solis, Deye, Solplanet, Solinteg, Sunways, Hoymiles, SAJ, Sinexcel, Growatt, ATESS, Megarevo, Sineng and others |
| Communication | CAN / RS485 |
| Protection rating | IP20 |
| Operating temperature | 0-50 °C when charging; -20-50 °C when discharging |
| Dimensions (W x D x H) | 590 x 390 x 133.5 mm |
| Weight | 47 kg |
| Cycle life | Over 8,000 cycles (0.2C, 25 °C, 95% DoD) / 10 years |
| Warranty | Not declared in the manual (declared service life 10 years) |
Documentation
PDFDatasheet S51100Official manufacturer documentPlease check compatibility with your inverter and with the other modules in the tower before ordering. Installation must be carried out by qualified personnel in accordance with the applicable standards.
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