Now supplied with the improved EcoFlow DELTA Pro Ultra X battery.
EcoFlow's most capable portable power system yet. Whether you are running a mobile workshop, film set, catering trailer or off-grid cabin, DELTA Pro Ultra delivers serious off-grid energy. Start with 6,144Wh of battery storage and expand to 30kWh, with up to 6.9kW of AC output and flexible charging from solar, a compatible generator, an EV charge point or mains power.
This price includes: 1 × EcoFlow DELTA Pro Ultra inverter and 1 × EcoFlow DELTA Pro Ultra X battery.
Why Choose the DELTA Pro Ultra?
- 6.9kW AC output for demanding equipment and high-power appliances
- Start with 6,144Wh and expand to 30kWh using up to five batteries
- Up to 5.6kW of combined high- and low-voltage solar input
- Supports charging from a compatible generator
- Optional trolley available for easier movement of a single-battery system
Built for Safety and Reliability
- LFP battery chemistry designed for dependable long-term use
- Built-in self-heating and advanced cooling for operation in demanding conditions
- Smart battery balancing helps maintain system health
- IP54-rated inverter and battery when all ports are properly covered
- Backed by a 5-year warranty
Turn Sunlight and Off-Peak Power into Savings
Whether you are at home or running a business, DELTA Pro Ultra can help reduce energy costs by charging from rooftop solar and cheaper off-peak electricity. App-based schedules and energy modes help you make better use of stored energy.
Stackable Design for Business or Home
Begin with one 6,144Wh battery and expand the system to 30kWh. One inverter can be paired with up to five batteries while continuing to provide up to 6.9kW of AC output.
Smart Features and Power Inputs
| Feature | Details |
|---|---|
| Power during outages | Stored solar energy remains available to power connected appliances during an outage. |
| Generator charging | Supports charging from a compatible generator. |
| EV charge point charging | Charge at up to 7,200W from a compatible Level 2 EV charge point using the EcoFlow EV X-Stream Adapter, sold separately. |
| Smart energy management | App-based schedules and energy modes help optimise charging and runtime. |
Flexible Charging Options
Recharge from mains power, high- or low-voltage solar, a compatible generator or a compatible EV charge point. Actual charging speed depends on the input source, connected batteries and accessories used.
Full Technical Specifications
System
| Specification | Details |
|---|---|
| Net weight | Inverter: 32.1kg; battery: 52.7kg |
| Dimensions | Inverter: 690 × 481 × 214mm; battery: 660 × 455 × 204mm |
| Rated capacity | 6,144Wh per battery; supports 1–5 batteries |
| Connectivity | Wi-Fi and Bluetooth supported |
| Display | Built-in screen |
| Grid-tied export | Not supported |
| Standby power consumption | <12W |
| Operating altitude | Up to 3,000m; performance is derated above 2,000m |
| Warranty | 5 years |
| Operating temperature | Charging: −20°C to 45°C; discharging: −20°C to 45°C; storage: −20°C to 45°C |
| Protection rating | IP54 when all ports are properly covered |
| Noise level | ≤30dB under 25°C discharge conditions |
Battery
| Specification | Details |
|---|---|
| Battery pack | 6,144Wh, 102.4V, 32S3P |
| Battery chemistry | LFP |
| Cell specification | 20Ah, 3.2V |
| Efficiency | ≥95% under full AC load |
| Temperature range | Charging: −20°C to 45°C with self-heating below 0°C; discharging: −20°C to 45°C |
| Battery heating | Supported; operable down to −20°C |
| Battery balancing | Control available through the EcoFlow app for each battery pack |
| Certification | CE, UKCA and RCM |
| Protection | Over-temperature, low-temperature, over-discharge, overcharge, overload, short-circuit and over-current protection |
Hybrid Inverter
| Specification | Details |
|---|---|
| AC output | 230V, 50Hz, 6,900W total; 4 × 13A UK sockets and 1 × 30A CEE/commando socket |
| X-Boost | Not supported |
| UPS switchover | ≤20ms |
| AC standby consumption | <45W |
| AC output efficiency at 100W | 70% |
| Maximum AC discharge efficiency | 94% |
| Charging voltage | 220–240V |
| AC input adjustment | Supported |
| AC charging method | AC input via 5+8 connector |
| Maximum AC charging power | 220–240V, 30A, 50/60Hz, 6,900W maximum with a compatible input source |
| Standard UK socket charging | 220–240V, 12.5A, 50/60Hz |
| Protection | Surge and lightning protection |
| High-voltage PV input | 80–450V, 15A, 4,000W maximum |
| Low-voltage PV input | 30–150V, 15A, 1,600W maximum |
| Parallel inverter operation | Not supported |
| Smart Home Panel | Not currently available or supported in the UK |
| USB-A outputs | 2 × 5V, 2.4A, 12W maximum per port |
| USB-C outputs | 2 × 5/9/12/15/20V, 5A, 100W maximum per port |
| Anderson output | 12.6V, 30A, 378W maximum |