Description

The Dyness STACK314-14S is a fourteen-module high-voltage (HV) LiFePO4 battery in two columns: 225.12 kWh nominal capacity, 213.9 kWh usable energy (95% DOD). The fourteenth module lifts the voltage above 627 V – the threshold at which Growatt WIT 50–100K and Sinexcel PWS1-135M appear in the Dyness list, while the 30–50 kW class Deye, Solis, Hiconics and Sosen disappear. The 14S is therefore usually paired with a 100–135 kW inverter in a factory, a logistics terminal or an agricultural company.

Capacity and power

Fourteen 16.08 kWh modules operate in the 627–818 V range (nominal voltage 716.8 V). The recommended 140 A current corresponds to 100.4 kW, the maximum continuous 200 A to 143.4 kW, so for the first time in the series the battery delivers more than 100 kW in its gentle regime – it feeds a 100 kW inverter at full power for about two hours. It differs from the 13S not only in capacity but also in inverter class; expansion – one more module (15S, 241.2 kWh).

Installation and location

The expansion kit is included: a second base (133 mm), a cover (80 mm), 50 mm² cables linking the columns and a communication cable. The SBDU200 controller is in the main column, the modules stack without internal wiring, and the columns are secured with wall brackets. Two 770 × 425 mm footprints, total weight about 1,648 kg plus 18.5 kg; 450 mm of clearance is needed above the taller column. Indoor installation (IP20) on a concrete floor; charging from 0 °C, discharging from −20 °C, fan cooling.

Inverter compatibility

In the Dyness list (06/2026) fourteen modules are marked with Deye SUN-60–80K-SG02HP3-EU-EM6, Growatt WIT 50–100K (from 14S) and WIT 29.9–50K-XHU, Megarevo MEGA0100TS, Solinteg MHT-25–50K-100, M2HT-25–50K-150 and M2HT-75–125kW-300, Solis S6-EH3P(75–125)K10-NV-YD-H, Sinexcel PWS1-135M(-EX) (from 14S) and SRNE IESP 50–60kW. The 14S is the last configuration for Megarevo, SRNE and Solinteg 25–50 kW models – with them the 15S is no longer suitable. Communication is CAN or RS485; we check your inverter model against its label before you order.

Safety and warranty

Fourteen aerosol extinguishers (one per module), a DC breaker in the controller; the BMS balances all 224 cells (16 in every module). More than 8,000 cycles (0.2C, 25 °C), UN38.3 and IEC 62619. Warranty – 10 years under the Dyness warranty terms; registration through the Dyness app.

Technical specifications

Capacity

225.12 kWh (14 × 16.08 kWh)

Usable energy

213.9 kWh (95% DOD)

Depth of discharge (DOD)

95%

Power

100.4 kW recommended (140 A), max. 143.4 kW (200 A)

Voltage

716.8 V nominal, operating 627–818 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)

Two columns of 770 × 425 mm; up to 8 modules per column

Weight

approx. 1,648 kg + 18.5 kg expansion kit

Protection

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

Compatibility

Dyness list: Deye, Growatt WIT, Megarevo, Solinteg, Solis 75–125 kW, Sinexcel, SRNE

In the box

SBDU200 controller, 14 S51314 modules, expansion base and cover, linking cables

Warranty

10 yr. under Dyness warranty terms