The EcoFlow DELTA Pro 3 is a portable backup power station system featuring two 4kWh units paired together for an 8kWh total capacity. This versatile home backup solution delivers 4000W continuous output with dual 120V/240V split-phase capability, making it powerful enough to run high-demand appliances like 3-ton air conditioners, electric ovens, washers, dryers, and water pumps simultaneously. The system features X-Boost technology that extends power delivery up to 6000W, enabling operation of even more appliances without interruption.

Built with automotive-grade LiFePO4 (LFP) battery cells rated for 4000 cycles to 80% capacity, the DELTA Pro 3 provides reliable performance equivalent to 11+ years of daily use. The system features an industry-first IP65-rated battery pack resistant to dust, water, impacts, and fire risks. Fast charging capabilities include X-Stream technology that charges from 0-80% in just 50 minutes, with support for seven unique and 18 combination charging methods including AC wall outlets, solar panels up to 2600W, EV charging piles, generators, and alternator charging while driving.

The plug-and-play design requires no installation or home modifications. Simply connect to your home's power system via the built-in NEMA L14-30R split-phase socket with an inlet box, manual transfer switch, or EcoFlow Smart Home Panel 2. The system provides 10ms seamless switchover for uninterruptible power supply (UPS) functionality, protecting sensitive electronics and servers during outages. With X-Quiet technology, operation remains whisper-quiet at approximately 30 decibels under 2000W load. The capacity is expandable to 36kWh by connecting multiple units in parallel, or up to 48kWh with additional accessories, providing flexible solutions for varying power needs from overnight backup to week-long emergency power.