Description

The Dyness STACK100-9S is a nine-module high-voltage (HV) LiFePO4 battery: 46.08 kWh nominal capacity, 43.78 kWh usable energy (95% DOD). It is the variant for a production shop, a school, a hotel or a warehouse with a 35–45 kW solar plant, where evening loads last several hours. Indoor installation (IP20), tower height 1,435 mm.

Capacity and power

Nine modules operate in the 403–525 V range – from the 9S the whole battery window sits above 400 V – mostly commercial hybrid-inverter territory, although the 5–10 kW Solis, Hoymiles, SAJ and Senergy models are still marked. Recommended charge and discharge power is 23.04 kW (0.5C), with short peaks up to 46.08 kW (1C): an inverter of up to 23 kW runs at the recommended rate, up to 46 kW at the maximum. The tower has room for 3 more modules (up to 12 per column recommended); for more capacity a second 9S tower is connected in parallel (up to 12 towers).

Installation and location

Dimensions 591 × 390 × 1,435 mm, weight 445 kg; the modules stack without cables and the tower is secured to the wall with the brackets supplied. Discharging from −20 °C, charging from 0 °C; the optimum ambient temperature per the manual is 18–30 °C, fan cooling up to 55 dB. Leave 500 mm to other equipment, 30 mm to the wall and 200 mm above the tower.

Inverter compatibility

In the Dyness list (12/2025) the 9S is marked with Solis S6-EH3P (3–10, 12–20, 29.9–50 and 75–125 kW) and RHI-3P(5-10)K-HVES-5G, Deye SUN-5K~25K, 29.9–50 kW and 60–80 kW, GoodWe GW6-15K-ET-20, GW15~30K-ET and GW40-50K-ET-10, Growatt WIT 29.9~50K-XHU, Kostal PLENTICORE G2 / G3, Hoymiles HYT and HAT, Solinteg MHT, SAJ H2-5K~10K-T2, ATESS, Sinexcel, Koyoe, Sermatec, Sineng, Senergy, Sunways, Dunext, Livoltek, Megarevo and, newly, TBB Power Qoma33H&H-R. Compared with the 8S, Hoymiles HY3, Solinteg MHS, Sunways STH-3~8K and Solis RHI-1P7.6K have dropped off the list. Communication is CAN or RS485; we check your inverter model against its label before you order.

Safety and warranty

LiFePO4 cells and an aerosol extinguisher in each of the nine modules; the BMS balances the cells, and over Wi-Fi the battery status is visible in the Dyness app. The warranty in Europe is 10 years with an active inverter connection (3 years without it), at least 70% of usable energy or 135.82 MWh of throughput.

Technical specifications

Capacity

46.08 kWh (9 × 5.12 kWh)

Usable energy

43.78 kWh

Depth of discharge (DOD)

95%

Voltage

403–525 V (HV)

Power

23.04 kW recommended (0.5C), up to 46.08 kW (1C)

Charge cycles

≥ 8,000 (0.2C, 25 °C, 95% DOD)

Operating temperature

Charge 0 to +50 °C (from −20 °C with heating), discharge −20 to +50 °C (manual V7.0)

Communication

CAN / RS485 (RJ45) to inverter, Wi-Fi + Dyness app

Protection

IP20 (indoor only), aerosol extinguisher in every module

Dimensions (W×D×H)

591 × 390 × 1,435 mm

Weight

445 kg (BDU + base 22 kg, modules 9 × 47 kg)

Compatibility

Solis, Kostal, Deye, GoodWe, Growatt, Hoymiles, Solinteg, TBB Power etc. (Dyness list 12/2025)

In the box

BDU, base, 9 modules, brackets, 2 m CAN and RS485 cables, CAN resistor

Warranty

10 yr. (EU terms, with BMS link; 3 yr. without)