About the Dyness Stack280 LiFePO4 Stackable Battery 43kWh~215.04kWh
The Dyness Stack280 LiFePO4 Stackable Battery 43kWh~215.04kWh is a modular, high-capacity lithium iron phosphate (LiFePO₄) battery storage system designed for residential, small commercial, and light‑industrial energy storage use cases.
It supports a capacity range from 43 kWh up to 215.04 kWh per “cluster” (depending on the number of modules), with the ability to expand up to several megawatt hours (MW–scale) when multiple clusters are connected.
STACK280 is built with a “free‑stacking / rackless” design, intended to simplify installation: modules stack without wiring, enabling plug‑and‑play setup typically in under 30 minutes per cluster.
Detailed Features
- LiFePO₄ Battery Chemistry & Long Lifespan:
- Uses LiFePO₄ (lithium iron phosphate) cells — known for thermal stability, safety, and long cycle
- High Power & Flexible Discharge/Charge Capability:
- Supports fast charging/discharging, making it suitable for applications like load‑shifting, backup power, or peak load management.
- Modular & Scalable Design:
- Depending on how many modules are stacked, a single cluster’s usable energy can range from 43 kWh to 215.04 kWh.
- Multiple clusters can be connected in parallel — up to 12 clusters — enabling scaling to very large storage capacities (theoretically up to ~2.58 MWh according to the manufacturer).
- Built‑in Safety & Fire Protection Features:
- Each battery module includes an aerosol‑type fire extinguishing system that activates within 5 seconds if a high‑temperature/fire condition is detected.
- Battery management system (BMS) handles cell balancing, over‑charge/over‑discharge protection, over‑current protection, and temperature monitoring to maintain long‑term reliability.
- Easy Installation & Integration:
- Rackless, stackable design eliminates the need for complex wiring or racking structures — making installation faster and reducing balance-of-system (BOS) costs.
- Compatible with a wide range of solar / hybrid inverters (off-grid, on-grid hybrid, or commercial systems) commonly used in residential, commercial, and light‑industrial applications.
- Built‑in communication interfaces (e.g. CAN / RS485) for system monitoring, control, and integration with Energy Management Systems (EMS).
Technical Specifications
- Model: Stack280
- Battery Type: LiFePO₄
- Module Voltage/Capacity: 51.2v/280Ah
- System Modules Serial number: 3~15
- System Energy Range: 43kWh!215.04kWh
- Operating Voltage: 134.4V~864V
- Recommended Charge/Discharge Current: 140A (0.5C)
- Max. Charge/Discharge Current: 200A (01.7C)
- Peak Discharge Current (2min 25°C): 280A (1C)
- Depth of Discharge: 95%
- Communication: CAN/RS485
- Cycle Life *: ≥800 cycles/10 Years
- Charging Temp Range: 0~55°C
- Discharging Temp range: -20~55°C
- Protection Level: : IP20
- Single Module weight: 110kg
- Fire Protection System: Aerosol fire extinguisher
- Installation Method: Stack type
- Cooling Method: Forced wind coling
- Wi-Fi Module: Built-in wi-fi module; APP OTA function
- Battery Module Name: S51280
- Certification: & Safety Standard: UN38.3 CE-EM, IEC62619
- Compatible Inverters: Solis, Growatt, Sosen, Solinteg, Atess Megarevo, Deye, etc.
Application
- Residential Solar + Storage Systems — Perfect for households wanting deep backup battery capacity for load‑shedding, night‑time solar draw, or self-consumption.
- Small Commercial / Light Industrial Facilities — Ideal for businesses, warehouses, offices, small factories needing reliable backup or energy‑arbitrage/storage.
- Hybrid or Off‑Grid Installations — For locations where grid power is unreliable or unavailable; provides substantial storage buffer when paired with PV and/or generator.
- Peak Shaving & Load Management — Useful in tariff‑based or demand‑charge environments: store energy during low‑tariff periods / high solar output; discharge during peak demand.
- Scalable Multi‑Phase or Multi‑Building Setups — Because of modular stacking and parallel cluster support, the system can grow over time, adapting to increasing load or future expansion needs.
- Backup Power for Critical Loads (UPS‑style) — Given its high capacity and discharge capability, it can support heavy loads (inverter + loads) for extended periods during outages.
