The EcoFlow DELTA Pro 3 is a 4,096 Wh (4 kWh) power station that scales up in steps to 8 or 12 kWh with additional DELTA Pro 3 Extra Batteries and, thanks to backwards compatibility, also with older DELTA Pro Extra Battery units. Weighing 51.5 kg and measuring 69.3 × 34.1 × 41 cm it is a full-fledged home backup and event power unit rather than a hand-carried device. The four Type F outlets deliver 4,000 W of pure sine output with peaks up to 8,000 W and a dedicated CEE 16A outlet, and the station is quiet enough to be described as whisper-silent thanks to the GaN-based X-Quiet architecture that stays around 30 dB below 2,000 W.

• 4,096 Wh LiFePO4 storage, expandable to 8 or 12 kWh with DELTA Pro 3 Extra Batteries
• 4 × 230 V / 16 A AC outlets at 4,000 W (peak 8,000 W), pure sine, plus a CEE 16A outlet
• Solar inputs of up to 1,000 W LPV (11–60 V) and 1,600 W HPV (30–150 V) via XT60 ports
• Dedicated 4,000 W EV charging input at 120 / 240 V, 20 A for fast recharges from EV infrastructure
• UPS switchover in under 10 ms for whole-day protection of critical loads
• X-Quiet GaN design: only about 30 dB below 2,000 W of load, WiFi + Bluetooth via the EcoFlow app

Key specs

• Capacity: 4,096 Wh (up to 12 kWh with two extra batteries)
• Cell chemistry: LiFePO4
• AC output: 4 × 4,000 W (peak 8,000 W), pure sine
• CEE 16A output: 230 V, 16 A
• Solar input: 11–60 V LPV up to 1,000 W and 30–150 V HPV up to 1,600 W
• EV charging input: max 4,000 W, 120/240 V, 20 A
• Cycles: 4,000 cycles to 80% capacity
• Weight: 51.5 kg
• Dimensions: 69.3 × 34.1 × 41 cm
• UPS switchover: <10 ms

The DELTA Pro 3 is aimed at whole-house backup users, professional trades needing a real 4 kW mobile source on site, and event operators who want CEE 16A output and quiet 12 kWh potential in a single stackable unit.