Description

The Dyness STACK314-7S is a seven-module high-voltage (HV) LiFePO4 battery: 112.56 kWh nominal capacity, 107 kWh usable energy (95% DOD). The seventh module lifts the voltage above 313 V, and this is the first STACK314 configuration listed by Dyness alongside the 75–125 kW class Solis and Solinteg hybrid inverters. That is why the 7S is chosen by manufacturing companies, warehouses and agricultural companies with a 100 kW class solar plant, for whom not only capacity but also the ability to deliver high power matters.

Capacity and power

Seven 16.08 kWh modules operate in the 313–408 V range (nominal voltage 358.4 V). The recommended 140 A current corresponds to 50.2 kW, the maximum continuous 200 A to 71.7 kW. With a 100 kW inverter and a 7S battery the power is limited by the battery, so this variant suits cases where the inverter's battery power is used partially – for example to store the plant's surplus and cover the morning and evening load. For the full power of a 100 kW inverter choose 10S or more.

Installation and location

Seven modules are stacked onto the SBDU200 controller without internal wiring; wall brackets, CAN/RS485 and 50 mm² power cables are included. Dimensions 770 × 425 × 1,903 mm, weight about 843 kg. The manufacturer requires 450 mm of free space above the column, so the room must be at least 2.4 m high – if the ceiling is lower, the same capacity is split into two columns with the expansion kit. Indoor installation (IP20) on a concrete floor, charging from 0 °C, discharging from −20 °C.

Inverter compatibility

From seven modules the Dyness list (06/2026) adds Solis S6-EH3P(75–125)K10-NV-YD-H and Solinteg M2HT-75–125kW-300. ATESS HPS30000/40000/50000TL, Deye SUN-29.9–50K-SG01HP3-EU-BM3/4 and SUN-60–80K-SG02HP3-EU-EM6, Growatt WIT 29.9–50K-XHU, Hiconics, Solinteg MHT-25–50K-100 and M2HT-25–50K-150, Solis S6-EH3P(3–10)K-H, (12–20)K-H and (29.9–50)K-H, Sosen SSE-HH30-60K-P3 and SRNE IESP 50–60kW remain. Communication is CAN or RS485; we check your inverter model against its label before you order.

Safety and warranty

Seven aerosol extinguishers (one per module), a DC breaker in the controller, BMS with cell balancing; more than 8,000 cycles (0.2C, 25 °C), UN38.3 and IEC 62619; grounding resistance no more than 100 mΩ. Warranty – 10 years under the Dyness warranty terms; registration through the Dyness app.

Technical specifications

Capacity

112.56 kWh (7 × 16.08 kWh)

Usable energy

107 kWh (95% DOD)

Depth of discharge (DOD)

95%

Power

50.2 kW recommended (140 A), max. 71.7 kW (200 A)

Voltage

358.4 V nominal, operating 313–408 V

Current

140 A recommended (0.45C), 200 A max. continuous

Charge cycles

≥ 8,000 (0.2C, 25 °C, 95% DOD)

Operating temperature

Charge 0…+55 °C (with heating −20…+55 °C), discharge −20…+55 °C

Communication

CAN / RS485 (RJ45) to inverter; Wi-Fi + Bluetooth for the app

Dimensions (W×D×H)

770 × 425 × 1,903 mm (single column); 450 mm clearance above

Weight

approx. 843 kg

Protection

IP20, indoor; aerosol extinguisher in every module; DC breaker

Compatibility

Dyness list: Solis 3–125 kW, Solinteg 25–125 kW, Deye, Growatt, ATESS, Sosen, SRNE

In the box

SBDU200 controller, base, 7 S51314 modules, brackets, CAN/RS485 and power cables

Warranty

10 yr. under Dyness warranty terms