Description

The Dyness STACK314-3S is a three-module high-voltage (HV) LiFePO4 battery: 48.24 kWh nominal capacity, 45.8 kWh usable energy (95% DOD). It is the smallest STACK314 configuration – for a large farm, a car workshop or a multi-flat house with a 10–20 kW Solis hybrid inverter, when daytime solar energy has to be shifted into evening and night consumption. The column is only 983 mm high, so it fits in a low technical room.

Capacity and power

Three 16.08 kWh modules operate in the 134–175 V range (nominal voltage 153.6 V). The recommended charge and discharge current of 140 A corresponds to 21.5 kW, the maximum continuous 200 A to 30.7 kW. With Solis 10–20 kW inverters the power is limited not by the battery but by the inverter's battery port, so the battery runs in a gentle regime. If you need more, additional modules are added to the same column – up to 8 in one column.

Installation and location

The SBDU200 controller and the three modules stack on a 133 mm base without internal wiring; wall brackets, CAN and RS485 cables (2 m) and 50 mm² power cables are included. Dimensions 770 × 425 × 983 mm, weight about 383 kg – a level indoor floor (IP20) away from flammable materials is required. Charging from 0 °C, discharging from −20 °C, fan cooling, so a boiler room or storeroom is the best place.

Inverter compatibility

The 134–175 V window is the lowest in the series, so the 3S has the shortest inverter list. In the official Dyness list (06/2026) three modules are marked with Solis S6-EH3P(3–10)K-H, Solis S6-EH3P(12–20)K-H and Hiconics MH-HYIV29.9/30.0-TH. Deye, Solinteg, Sosen and SRNE models, like the Solis S6-EH3P(29.9–50)K-H, appear in the list only from 4 modules – if you plan one of these 30–60 kW class inverters, choose the 4S (64.32 kWh). Communication with the inverter is CAN or RS485; we check your inverter model against its label before you order.

Safety and warranty

LiFePO4 cells, a separate aerosol fire extinguisher in every module, BMS with cell balancing and protection against overcharge, overcurrent and temperature, more than 8,000 cycles (0.2C, 25 °C). The manufacturer's warranty is 10 years under the Dyness warranty terms; the system is registered through the Dyness app, which also shows the state of charge and system status in real time.

Technical specifications

Capacity

48.24 kWh (3 × 16.08 kWh)

Usable energy

45.8 kWh (95% DOD)

Depth of discharge (DOD)

95%

Power

21.5 kW recommended (140 A), max. 30.7 kW (200 A)

Voltage

153.6 V nominal, operating 134–175 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 × 983 mm (single column)

Weight

approx. 383 kg

Protection

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

Compatibility

Dyness list: Solis S6-EH3P(3–10)K-H, S6-EH3P(12–20)K-H, Hiconics MH-HYIV29.9/30.0-TH

In the box

SBDU200 controller, base, 3 S51314 modules, brackets, CAN/RS485 and power cables

Warranty

10 yr. under Dyness warranty terms