EcoFlow DELTA Pro Ultra X Whole-Home Power Station

The EcoFlow DELTA Pro Ultra X is a whole-home backup power station designed for fast, professional installation. The standard bundle includes one DELTA Pro Ultra X Inverter and two Smart Extra Batteries, delivering 12kW of AC output power at 120/240V, 60Hz and 12.288kWh of usable capacity. The system is expandable to a maximum of 61.44kWh with up to 10 battery packs per inverter, and can be configured in a three-inverter parallel setup for up to 36kW output and 184.32kWh of total capacity.

The inverter features a plug-and-play design that can be installed in approximately 7 days, with less than 10ms UPS switchover when operating standalone and less than 20ms when paired with the EcoFlow Smart Home Panel 3. AC outlets include two NEMA 5-20 (120V/20A), one NEMA L14-30 (120V/240V 30A), and one NEMA 14-50 (120V/240V 50A). Solar input supports up to 10kW total across two high-voltage PV ports (80–500V, 15A each). The system also accepts up to 12kW of rated AC input power. The inverter weighs approximately 70 lb and the battery unit approximately 111 lb. Both carry an IP54 rating for protection against dust and water. Noise output is less than 30 dB at 0.5 meters. The battery chemistry is lithium iron phosphate (LFP), operating between −4°F and 113°F. The system comes with a 5-year warranty and includes a built-in display screen.