EcoFlow DELTA Pro Ultra EcoFlow's most capable portable power system yet. Whether you're running a mobile workshop, film set, catering trailer or off-grid cabin, this system delivers serious off-grid energy. With 6kWh to 90kWh of battery storage, up to 6.9kW of output per inverter (can be paired with 1-5 batteries), and flexible charging from solar, generator or mains, it's built to keep your business running smoothly and your lifestyle powered wherever you are. Note: the base price below includes one inverter and one battery. Why Choose the DELTA Pro Ultra? 6.9kW output per unit for heavy-duty loads like professional lighting, mobile workshops, or a power shower! Start at 6kWh and expand to 30kWh with 1-5 stackable batteries Solar input: up to 5.6kW: stay independent from the grid Compatible with 3 - 12kW generators for uninterrupted power Optional trolley to move at your worksite, in an off-grid workshop or home Built for Safety and Reliability Top-spec LFP battery handles extreme conditions, from freezing mornings to long days of heavy use Built-in self-heating and advanced cooling for reliable performance in any environment Smart charge balancing helps maintain system health and extend runtime Backed by a 5-year warranty for dependable, long-term use in mobile and off-grid settings Turn Sunlight and Off-Peak Power into Savings Whether you're at home or running a business, DELTA Pro Ultra helps cut your energy costs. It takes power from your rooftop solar and cheaper night-time electricity. Built-in smart timers automatically switch between power sources to make the most of off-peak rates and solar generation. Stackable Design for Every Business or Home Begin with a 6kWh battery and scale to 30kWh. Each inverter delivers 6.9kW and can be paired with 1-5 batteries (6-30kWh). Smart Features & Power Inputs Feature Details Solar Power Stays Active Continues to supply power during outages. Generator Compatibility Works with or 3kW+ generators. EV Chargepoint Charging 7200W via EcoFlow EV X-Stream adapter. AI Power Plans Smart power allocation extends runtime. Full Technical Specifications Module Functions Specs General Net weight Inverter: 32.1 kg (70.8 lbs), Battery: 52.7 kg (116.4 lbs) Dimensions Inverter: 690 × 481 × 214 mm, Battery: 660 × 455 × 204 mm Rated capacity 6144Wh × 1 - 5 batteries Wi-Fi Supported Bluetooth Supported Screen display Supported Grid connection Not supported Standby power consumption