Description

The Dyness STACK100-7S is a seven-module high-voltage (HV) LiFePO4 battery: 35.84 kWh nominal capacity, 34.05 kWh usable energy (95% DOD). It is the variant for a farm with milking or refrigeration equipment, a rural tourism homestead or a hotel kitchen with a 25–35 kW solar plant. Indoor installation (IP20), tower height 1,168 mm.

Capacity and power

Seven modules operate in the 313–408 V range – the first STACK100 variant whose lower window limit exceeds 300 V. Recommended charge and discharge power is 17.92 kW (0.5C), with short peaks up to 35.84 kW (1C). The tower has room for 5 more modules; for larger expansion a second 7S tower is connected in parallel.

Installation and location

Dimensions 591 × 390 × 1,168 mm, weight 351 kg – a level floor and two people are needed, wall brackets are included. Charging from 0 °C, discharging from −20 °C (the heated version charges from −20 °C), fan cooling up to 55 dB. Leave 500 mm to other equipment, 200 mm above the tower and 300 mm between towers on the fan side.

Inverter compatibility

The 7S is the last variant for which the Dyness list (12/2025) still marks the small hybrid inverters Ingeteam INGECON SUN STORAGE 3TL–6TLM, SAJ H2-3K~6K-S2, Sineng SN-3.0~6.0HS and Dunext NI HV3.0-6.0 – from the 8S they disappear from the list. At the same time the 7S adds ATESS HPS 5000/7500/10000TLS and Solis S6-EH3P(75~125)K10-NV-YD-H – high-power commercial converters (ATESS HPS 30–150 are marked only for the 8S–10S). Still listed: Solis S6-EH3P (3–10, 12–20 and 29.9–50 kW), Deye SUN-5K~25K, 29.9–50 and 60–80 kW, GoodWe GW6-15K-ET-20, GW15~30K-ET and GW40-50K-ET-10, Growatt WIT, Kostal PLENTICORE G2 / G3, Hoymiles, Solinteg, SAJ H2-5K~10K-T2, Koyoe, Sermatec, Sineng, Sinexcel, Senergy, Sunways, Livoltek, Megarevo. Communication is CAN or RS485; we check your inverter model against its label before you order.

Safety and warranty

The system is certified to IEC 62619 and IEC 63056 (battery safety), CE-EMC and CE-RED; each of the seven modules has its own aerosol extinguisher, and the BDU carries a DC breaker with short-circuit protection. The warranty is 10 years in Europe with an active inverter connection (3 years without it), at least 70% of usable energy or 105.63 MWh of throughput.

Technical specifications

Capacity: 35.84 kWh (7 × 5.12 kWh)
Usable energy: 34.05 kWh
Depth of discharge (DOD): 95%
Voltage: 313–408 V (HV)
Power: 17.92 kW recommended (0.5C), up to 35.84 kW (1C)
Charge cycles: ≥ 8,000 (0.2C, 25 °C, 95% DOD)
Operating temperature: Charge 0 to +50 °C (from −20 °C with heating), discharge −20 to +50 °C (manual V7.0)
Communication: CAN / RS485 (RJ45) to inverter, Wi-Fi + Dyness app
Protection: IP20 (indoor only), aerosol extinguisher in every module
Dimensions (W×D×H): 591 × 390 × 1,168 mm
Weight: 351 kg (BDU + base 22 kg, modules 7 × 47 kg)
Compatibility: Solis, Kostal, Deye, GoodWe, Growatt, Hoymiles, Solinteg, Ingeteam etc. (Dyness list 12/2025)
In the box: BDU, base, 7 modules, brackets, 2 m CAN and RS485 cables, CAN resistor
Warranty: 10 yr. (EU terms, with BMS link; 3 yr. without)