Flexible Capacity 6.9 kWh per Battery Module Scalable from 6.9 kWh to 20.7 kWh per Group Max. 4 Groups with 82.8 kWh for an Inverter More Usable Energy Module+ Architecture, Built-in Energy Optimizer Ultra-long Service Time 100% Depth of Discharge 5-layer Safety Protection Cell-level, Electrical-level, Structural-level Active Protection, Emergency Protection Ultimate Use Experience -20°C to +55°C Operating Temperature Max 10.5 kW Charging & Discharging Power per Group Super Quiet Operation Easy Installation Cable Free Connection Between Modules Horizontal Adjustment Design Quick Commissioning Aesthetically Pleasing Design Breathing Star Ring Display Silky Curve Design Simplistic and Borderless