This set combines the EcoFlow DELTA Pro 3 Power Station with one DELTA Pro 3 Extra Battery, doubling total usable capacity to 8,192 Wh (4,096 Wh + 4,096 Wh). The main unit weighs 51.5 kg and the add-on battery 33 kg, and together they still deliver the same 4,000 W AC output with an 8,000 W peak surge. A second extra battery can be added later to reach 12 kWh, so the system scales into a full home backup.

• Combined 8,192 Wh LiFePO4 storage across the main unit and the extra battery.
• 4,000 W of continuous AC power via four Type F sockets, 8,000 W peak, pure sine wave.
• GaN-based X-Quiet architecture keeps the fans below 30 dB under 2,000 W loads.
• UPS switchover in under 10 ms shields sensitive electronics such as modems, NAS or medical devices during outages.
• Backwards compatible with the original DELTA Pro Extra Battery for existing owners.
• Solar input up to 1,000 W on LPV and 1,600 W on HPV XT60, plus EV charger input up to 4,000 W for fast top-ups.

Key specs

• Capacity: 8,192 Wh (4,096 Wh + 4,096 Wh)
• AC output: 4,000 W (peak 8,000 W), pure sine
• AC inlet: 2,900 W max, 220-240 V (C20)
• Solar input: 1,000 W (LPV) + 1,600 W (HPV)
• Cell chemistry: LiFePO4 (LFP), 4,000 cycles to 80% capacity
• Weight: 51.5 kg + 33 kg extra battery
• Dimensions: 69.3 x 34.1 x 41 cm; extra battery 69.3 x 29.5 x 21.5 cm
• UPS switchover: <10 ms
• USB-C: 100 W max per port (200 W total)
• Warranty: 5 years

Ideal for households that want proper multi-day backup, a workshop that pulls heavy tools, or a mobile setup where a second battery keeps a fridge, TV and lights running for a weekend.