DELTA Pro Ultra (Inverter + Battery) has the highest output and capacity of any EcoFlow portable power station to date. As well as offering colossal energy storage and a flexible design that fits your power needs, DELTA Pro Ultra embraces solar to ensure your essentials, even the entire home, run smoothly in weeks of uninterrupted power.
* DELTA Pro Ultra has the highest capacity and output power of current EcoFlow Portable Power Stations.
Backup - When storms or blackouts strike, DELTA Pro Ultra instantly powers your essentials or your entire house.
Take home power dependability to another level with up to 30kWh battery capacity. For a standard household, that's weeks of essential backup power to keep lights and appliances, like your fridge, running strong (time may vary). Stackable and space-saving, it packs comfortably into a garage or utility cupboard.
* Backup time depends on the appliances used
With a 6900W output, EcoFlow DELTA Pro Ultra effortlessly runs even energy-hungry household items, even an EV charger. With X-Fusion, it guarantees a total 6900W output even during charging.
You're spoilt for choice with EcoFlow DELTA Pro Ultra's charging options. As well as all our usual methods, like solar and the grid, you can now power up using a gas generator or even your EV charging pile. With the industry's fastest charging speeds of 8800W, top up two batteries in only 2 hours.
*The setup requires a licensed electrician or a qualified professional. Instruction Leaflet
Already Have a Manual Transfer Switch? The MTS compatible with DELTA Pro Ultra must have a rated operational current greater than 40A.
With the trolley, take DELTA Pro Ultra with you, whether you are going outside or moving to a new place.
*Portability refers to single-battery setups only. Multi-battery configurations are designed for stationary use.
With EcoFlow DELTA Pro Ultra's UPS, you'll barely notice an outage. EcoFlow DELTA Pro Ultra safeguards your vulnerable electronic equipment round-the-clock, running at a whisper-quiet 0 dB, so you can work from home or sleep peacefully.*
* For low draws under 2000W
With its flexible plug-and-play design and unrivaled solar input, EcoFlow DELTA Pro Ultra empowers you to tailor your solution to fit your energy needs. EcoFlow DELTA Pro Ultra includes a PV locking feature, assuring safety and a solid energy connection.
Boost Performance with BMSOur state-of-the-art LFP tech and advanced battery management system (BMS) regulates vital data, ensuring the safety, longevity, and high performance of EcoFlow DELTA Pro Ultra. With each battery offering a cycle life of 3500+, you'll get years of use before capacity drops to 80%. Even then, it keeps powering on.
EcoFlow DELTA Pro Ultra tackles even the most gruelling conditions. Whether it's extreme weather or freezing winters, this giant safeguards your power security, just like usual.
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Dimensions Inverter: 690 × 481 × 214 mm (27.2 × 18.9 × 8.4 in) |
Gross Weight 41.7 kg (91.9 lb) |
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Net Weight 32.1 kg (70.8 lb) |
Maximum Battery Capacity 6 kWh (6144 Wh) |
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Maximum Expandable Capacity 30 kWh (6144 Wh x 5) |
PV Input High-PV Input: 80-450V-15A 4000W Max Low-PV Input: 30-150V-15A 1600W Max |
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AC Input Charging/Bypass: 200-240V~12.5A, 50/60Hz |
Power Input/Output 200-240V~30A, 50/60Hz 6900W Max |
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AC Output Discharge : 230V 50Hz 6900W total, 13A(×4) Max per port, 30A(×1) Max per port Bypass: 220-240V 50/60Hz 2900W total, 12.5A(×5) Max per port |
DC Output 12.6V⎓30A, 378W max |
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USB Ports USB-C: 5/9/12/15V-3A 20V-5A 100W(×2) Max per port, total 200W USB-A: 5V-2.4A 12W(×2) Max per port, total 24W |
Temperature Range Charging：-20~45℃(-4~113℉) Discharging：-20~45℃(-4~113℉) Storage: -20~45℃(-4~113℉) |
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Operating Humidity ≤90% |
Maximum Operating Altitude ≤3000m (9842 ft) |
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Noise Level |
UPS < 20ms |
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Communication Method Wifi 2.4GHz / Bluetooth 5.0 |
Ingress Protection Rating IP54 *IP54 rating applies only when all ports are properly covered. |
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Monitoring Mode LCD |
Warranty Period 5 Years |
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Certification CE,UKCA(IEC/EN/BS62368-1), IEC/EN/BS62109-1/2, IEC/EN/BS62040-1) |
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Model EFYJ751-BP |
Name Rechargeable Li-ion battery pack |
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Net Weight 50.7 kg (111.8 lb) |
Dimensions 660 × 455 × 204 mm (26 × 18 × 8 in.) |
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Capacity 102.4V⎓60A, 6,144Wh |
Cell Material LFP |
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Cycle Life The battery maintains 80%+ SOH (state of health) after 3,500 cycles at 0.5C/0.5C at 25°C (77°F) |
Protection type Overvoltage protection, overload protection, overtemperature protection, short circuit protection, low temperature protection, low voltage protection, overcurrent protection |
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Temperature Discharging temp: −20°C to 45°C (−4°F to 113°F) Charging temp: −20°C to 45°C (−4°F to 113°F) Storage temp: −20°C to 45°C (−4°F to 113°F) (optimum: −20°C to 45°C(68°F to 86°F)) |
Altitude ≤3,000 m (9,842 ft.) |
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IP Rating IP54 *IP54 rating applies only when all ports are properly covered. |
Certification CB: IEC62619CE COC: EN IEC 62040-1, EN 62477-1 IEC： IEC62133-2 IP54 ： IEC60529, UL9540A, UL1973 |
