Description

The Dyness STACK314-15S is a fifteen-module high-voltage (HV) LiFePO4 battery in two columns: 241.2 kWh nominal capacity, 229.2 kWh usable energy (95% DOD). It is the largest single-system configuration – 15 modules is the limit of one string. The 15S is usually paired with a 100–135 kW hybrid inverter at industrial sites with a 150 kW or larger plant, and when 241 kWh is not enough, up to 12 such systems are connected in parallel (about 2.89 MWh).

Capacity and power

Fifteen 16.08 kWh modules operate in the 672–876 V range (nominal voltage 768 V) – the highest voltage in the series, so the inverter's battery input must cover this whole window. The recommended 140 A current corresponds to 107.5 kW, the maximum continuous 200 A to 153.6 kW: a 135 kW class inverter is fed at full power without battery limitation. Beyond this it is expanded not with modules but with a second identical system with its own controller and busbar.

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 stands in the main column, the modules stack without internal wiring; up to 8 modules per column, so one column reaches about 2.2 m and needs 450 mm of clearance above. Two 770 × 425 mm footprints, total weight about 1,763 kg plus 18.5 kg – almost two tonnes, so the location is a concrete floor on the ground floor or in a basement only. Indoor installation (IP20), charging from 0 °C, discharging from −20 °C.

Inverter compatibility

The 15S voltage window suits only the highest-power inverters: in the Dyness list (06/2026) fifteen modules are marked with Deye SUN-60/70/75/80K-SG02HP3-EU-EM6, Growatt WIT 50–100K and WIT 29.9–50K-XHU, Solinteg M2HT-75–125kW-300, Solis S6-EH3P(75–125)K10-NV-YD-H and Sinexcel PWS1-135M(-EX). Megarevo, SRNE and Solinteg 25–50 kW models end in the list at 14S – if you have one of them, choose the 14S (225.12 kWh). Communication is CAN or RS485; we check your inverter model against its label before you order.

Safety and warranty

Fifteen aerosol extinguishers (one per module) and a DC breaker in the main-column controller; the BMS balances all 240 cells. 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

241.2 kWh (15 × 16.08 kWh)

Usable energy

229.2 kWh (95% DOD)

Depth of discharge (DOD)

95%

Power

107.5 kW recommended (140 A), max. 153.6 kW (200 A)

Voltage

768 V nominal, operating 672–876 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. 1,763 kg + 18.5 kg expansion kit

Protection

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

Compatibility

Dyness list: Deye SG02HP3, Growatt WIT, Solinteg 75–125 kW, Solis 75–125 kW, Sinexcel

Features

Up to 12 systems in parallel (approx. 2.89 MWh) with a busbar

In the box

SBDU200 controller, 15 S51314 modules, expansion base and cover, linking cables

Warranty

10 yr. under Dyness warranty terms