Compatibility - Works seamlessly with EcoFlow DELTA Pro 3 (The EcoFlow DELTA Pro Smart Extra Battery is compatible with the EcoFlow DELTA Pro 3. ).. Scalable Power - Expandable up to 12kWh for increased capacity.. Long-Lasting Battery - LFP battery with 4000 life cycles to 80% capacity.. Easy to Use - Plug-and-play design for straightforward operation.. Stackable Design - Perfect for home or indoor power backup applicationsCompatibility - Works seamlessly with EcoFlow DELTA Pro 3 (The EcoFlow DELTA Pro Smart Extra Battery is compatible with the EcoFlow DELTA Pro 3. ).. Scalable Power - Expandable up to 12kWh for increased capacity.. Long-Lasting Battery - LFP battery with 4000 life cycles to 80% capacity.. Easy to Use - Plug-and-play design for straightforward operation.. Stackable Design - Perfect for home or indoor power backup applications