The EcoFlow DELTA Pro Ultra Power Station bundles the DELTA Pro Ultra Inverter with one 6,144 Wh LiFePO4 battery, forming the starter configuration of a modular whole-home system that scales up to 30 kWh. Out of the box the pair delivers 6,900 W of AC output on a single phase, with a 10-second peak of 10,300 W. Each battery weighs 50.7 kg and measures 66 x 45.5 x 20.4 cm; up to four more can be stacked underneath.

• 6,144 Wh starting capacity, expandable to 30 kWh with four additional DELTA Pro Ultra batteries.
• 6,900 W AC output across five outlets, enough to run heavy loads including EV charging.
• 8,800 W combined solar plus grid input, and up to 5,600 W of PV over the HPV/LPV channels.
• X-Fusion keeps AC output constant even during recharge, and the system supports voltages up to 290 V.
• UPS switchover in under 20 ms to shield sensitive electronics during outages.
• Wi-Fi and Bluetooth control via the EcoFlow app, including Storm Guard automatic pre-charge before bad weather.

Key specs

• Capacity: 6,144 Wh (starter), expandable to 30 kWh
• AC output: 6,900 W total, up to 10,300 W peak (10 s)
• PV input: 4,000 W HPV + 1,600 W LPV, up to 450 V
• Solar + grid: 8,800 W max
• Cell chemistry: LiFePO4 (LFP), 3,500 cycles to 80% capacity
• IP rating: IP54
• UPS switchover: <20 ms
• Battery weight: 50.7 kg; dimensions 66 x 45.5 x 20.4 cm
• Wi-Fi and Bluetooth
• Warranty: 5 years

Best suited to a permanent installation in a garage, utility room or basement, where a family wants to bridge multi-hour outages today and grow the system into a multi-day backup later.