The EcoFlow DELTA 3 Max is a 2,048 Wh portable power station weighing about 20.3 kg, sized 49.4 × 23.9 × 30.5 cm, and built for use as both a mobile power source and an in-home backup. Its four AC outlets deliver 2,400 W of pure sine output with 4,800 W peaks and X-Boost up to 3,200 W. A dedicated UPS mode switches to battery power in under 10 ms, keeping sensitive electronics safe during grid interruptions. X-Stream fast charging refills the battery in about 1.13 hours from a wall socket and reaches 80% in roughly 51 minutes. Capacity on this Max variant is fixed and cannot be extended with additional batteries.

• 2,048 Wh LiFePO4 battery rated for 3,000 cycles to 80% capacity
• 4 × 230 V AC outlets at 2,400 W (peak 4,800 W), pure sine, plus X-Boost up to 3,200 W
• Solar input of up to 500 W (11–60 V, 15 A max) and an alternator charger input up to 500 W via XT60
• UPS switchover in under 10 ms for fridges, NAS units, home offices and CPAP machines
• X-Stream fast charge: 0–80% in 51 minutes, full recharge in about 1.13 hours
• Full remote control through the EcoFlow app over WiFi or Bluetooth, front LCD for local status

Key specs

• Capacity: 2,048 Wh
• Cell chemistry: LiFePO4
• AC output: 4 × 2,400 W (peak 4,800 W), pure sine
• Solar input: 11–60 V, 15 A, 500 W
• Alternator charger: up to 500 W via XT60
• USB-C: 1 × 100 W plus 2 × 15 W (max 30 W total on the pair)
• UPS switchover: <10 ms
• Weight: approx. 20.3 kg
• Dimensions: 49.4 × 23.9 × 30.5 cm
• WiFi and Bluetooth: yes

The DELTA 3 Max is aimed at a small home or apartment that needs a 2 kW backup for essentials, a professional site power source or a stationary van installation where a fixed 2 kWh reserve is enough.