Description

The Dyness STACK314-4S is a four-module high-voltage (HV) LiFePO4 battery: 64.32 kWh nominal capacity, 61.1 kWh usable energy (95% DOD). It is the first STACK314 configuration that Dyness lists alongside Deye, Solinteg, Sosen, SRNE and 29.9–50 kW Solis hybrid inverters, which is why small businesses most often choose it – a workshop, a shop, a farm building with a 30–50 kW solar plant whose daytime surplus is stored and used in the evening. The 1,213 mm column stands indoors on the floor.

Capacity and power

Four 16.08 kWh modules operate in the 179–233 V range (nominal voltage 204.8 V). The recommended 140 A current corresponds to 28.7 kW, the maximum continuous 200 A to 41 kW. Compared with the 3S, one extra module adds not just 16 kWh but also 51.2 V, and with it a much wider inverter list. If you need more capacity later, up to four more modules are added to the same column (up to 8S, 128.64 kWh).

Installation and location

Four modules are stacked one on top of another above the SBDU200 controller – the connectors mate inside the modules, no wiring is needed; wall brackets, CAN and RS485 cables and 50 mm² power cables are included. Dimensions 770 × 425 × 1,213 mm, weight about 498 kg, so the floor has to carry half a tonne on a single 770 × 425 mm footprint. Indoor installation (IP20), charging from 0 °C, discharging from −20 °C.

Inverter compatibility

From four modules the Dyness list (06/2026) adds Deye SUN-29.9–50K-SG01HP3-EU-BM3/4 and SUN-60–80K-SG02HP3-EU-EM6, Solinteg MHT-25–50K-100 and M2HT-25–50K-150, Solis S6-EH3P(29.9–50)K-H, Sosen SSE-HH30-60K-P3 and SRNE IESP 50–60kW; Solis S6-EH3P(3–10)K-H, S6-EH3P(12–20)K-H and Hiconics remain. Growatt WIT 29.9–50K-XHU is marked in the list only from 5 modules – with this inverter choose the 5S (80.4 kWh). Communication is CAN or RS485; we check your inverter model against its label before you order.

Safety and warranty

Four modules – four separate aerosol fire extinguishers, and in the controller a DC breaker with short-circuit protection. The BMS balances the cells and protects against overcharge, overcurrent and temperature; more than 8,000 cycles (0.2C, 25 °C), UN38.3 and IEC 62619. The manufacturer's warranty is 10 years under the Dyness warranty terms; the system is registered through the Dyness app.

Technical specifications

Capacity

64.32 kWh (4 × 16.08 kWh)

Usable energy

61.1 kWh (95% DOD)

Depth of discharge (DOD)

95%

Power

28.7 kW recommended (140 A), max. 41 kW (200 A)

Voltage

204.8 V nominal, operating 179–233 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 × 1,213 mm (single column)

Weight

approx. 498 kg

Protection

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

Compatibility

Dyness list: Deye, Solinteg 25–50K, Solis 3–50 kW, Sosen, SRNE, Hiconics

In the box

SBDU200 controller, base, 4 S51314 modules, brackets, CAN/RS485 and power cables

Warranty

10 yr. under Dyness warranty terms