EcoFlow DELTA Pro Ultra
The most powerful whole-home backup solution.
Month-long power security.
6-90kWh Capacity
Take home power dependability to another level with up to 90kWh battery capacity. For a standard household, that's over 30 days of essential backup power to keep appliances like lights and refrigerators running strong (time may vary). Stackable and space-saving, it packs comfortably into a garage or utility closet.
One unit covers every appliance.
7.2kW-21.6kW, 120V & 240V Output
With a 7.2kW output, EcoFlow DELTA Pro Ultra effortlessly runs even energy-hungry household items, like a 3-ton central air conditioner*. For more power, pair 3 inverters with the EcoFlow Smart Home Panel 2 to unlock a 21.6kW AC output. Plus, with X-Fusion you'll get a constant 7200W output no matter what.*
One hour of solar for one day of power.
5.6kW-16.8kW Solar Input
By leveraging High and Low-PV technologies, a single inverter sets new portable solar input standards with a 5.6kW input*. Connect three inverters for a monumental 16.8kW, gaining a full day's home energy in 60 minutes. Whether you prefer a portable setup or a rooftop solar system, you can achieve true energy independence.
Always in charge
With a Generator or EV pile
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.
You won't even notice the grid was down.
0-ms Downtime, 0 dB Silent Backup
Imagine a world where power outages go unnoticed. With EcoFlow DELTA Pro Ultra's online UPS, you'll get just that. With uninterrupted power flow, EcoFlow DELTA Pro Ultra safeguards your vulnerable electronic equipment round-the-clock. For extended outages, you don't want to hear your backup in the background, so for low draws under 2000W*, it's completely silent. With a whisper-quiet 0 dB, your nights remain undisturbed as it powers your devices.*For a maximum of 30 minutes.
Peace Of Mind With An Advanced Design.
Powers through the most challenging situations.
EcoFlow DELTA Pro Ultra tackles even the most grueling conditions. Whether it's extreme weather or freezing winters, this giant safeguards your power security, just like usual.
Installation Consulting Service For EcoFlow Smart Home Panel 2
With our service, you'll experience a seamless EcoFlow Smart Home Panel 2 installation.We connect you with a fully-trained local electrician and provide tracking from order to fitting. Our team is on hand to answer any technical queries, ensuring a smooth, hassle-free setup that prioritizes your convenience and satisfaction.
What's in the box
Specs
Net Weight
Inverter：31.7 kg (70 lb)Battery：52.7 kg (116.4 lb）
Dimensions
Inverter：690 × 481 × 214 mm (27.2 × 18.9 × 8.4 in.)Battery：660 × 455 × 204 mm (26 × 18 × 8 in.)
Capacity
102.4V⎓60A, 6,144Wh
Battery Dimensions
660 × 455 × 204 mm (26 × 18 × 8 in.)
Battery Capacity
102.4V⎓60A, 6,144Wh
AC Output
Discharging: Pure sine, 7,200W total, 120V/240V~ 60HzBypass: 100-120V~30A total, 50Hz/60Hz
USB Ports
USB-A (× 2): 5V⎓2.4A, 12W max per port, total 24WUSB-C (× 2): 5/9/12/15/20V⎓5A, 100W max per port, total 200W
DC Output
12.6V⎓30A, 378W max
Battery Cell Material
LFP
Battery Cycle Life
The battery maintains 80%+ SOH (state of health) after 3,500 cycles at 0.5C/0.5C at 25°C (77°F)
Battery Protection type
Overvoltage protection, overload protection, overtemperature protection, short circuit protection, low temperature protection, low voltage protection, overcurrent protection
AC Input
Charging: 100-120V~15A; 200-240V~12.5A, 50/60HzBypass: 100-120V~15A, 50/60Hz (duration < 3hrs when the current exceeds 12A)
Battery 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°C to 86°F))
Battery IP Rating
IP54
High-PV
80-450V⎓15A max, 4,000W max
Low-PV
30-150V⎓15A max, 1,600W max
Inverter Temperature
Operating temp: −4°F to 113°F (−20°C to 45°C)
IP Rating
IP54
Battery Cell Material
LFP
Battery Cycle Life
The battery maintains 80% after 3,500 cycles
Battery Protection type
Overvoltage protection, overload protection, overtemperature protection, short circuit protection, low temperature protection, low voltage protection, overcurrent protection
Noise Level
<30 dB
UPS
Backup UPS <20 ms; Online UPS 0 ms
Communication Method
Bluetooth & Wi-Fi & 4G
FAQs
No. However you can use EcoFlow Power input/output Cable to connect DPU with EcoFlow Smart Home Panel 2.
Yes, it’s compatible with existing solar systems, including rooftop solar*. For each EcoFlow DELTA Pro Ultra Inverter, solar input can reach a maximum of 5600W (16.8kW with 3 inverters) with the following: High voltage PV: 80-450V, 15A, 4000W MaxLow voltage PV: 30-150V, 15A, 1600W Max
*If you connect the EcoFlow DELTA Pro Ultra to PV system circuits installed on or in buildings, according to NEC regulations, the system shall include a rapid shutdown function to ensure operation safety and reduce shock hazards for emergency responders. If you wish to connect the EcoFlow DELTA Pro Ultra to PV system circuits, a pre-purchase consultation must be completed by a qualified electrician or installer.
EcoFlow Smart Generator can charge EcoFlow DELTA Pro Ultra using an EcoFlow AC Charging Cable (NEMA 5-15P to C19).
EcoFlow DELTA Pro Ultra can not be charged using DC through an XT150 cable.Third-party generators can charge EcoFlow DELTA Pro Ultra using the EcoFlow AC Generator Charging Adapter. The EcoFlow Smart Generator can be auto-switched on or off through the EcoFlow app.
Unfortunately, EcoFlow DELTA Pro Ultra cannot connect and feedback to the grid.
Yes, but the transfer switch should be connected to the power station's AC output port. You should disconnect the circuits from the grid before the power station supports them. The total power consumption of the circuits should not exceed the output power rating. The output will not be grounded if the power station is not connected to the grid.
Charging priority: low voltage photovoltaic > high voltage photovoltaic > 5 + 8 interfaces (including Smart Home Panel 2) > mains
No. The EcoFlow DELTA Pro Ultra Battery needs to be connected to an EcoFlow DELTA Pro Ultra Inverter to charge. EcoFlow DELTA Pro Ultra is not compatible with third-party inverters.
EcoFlow DELTA Pro Ultra Inverter Warranty: 5 Years; EcoFlow DELTA Pro Ultra Battery Warranty: 5 Years; Even then, each LFP battery's lifespan lasts for as long as 10 years with up to 3500 cycles.
The EcoFlow DELTA Pro Ultra weather-protection level is IP54. An IP54 rating means that your product will be protected against dust and other particles and water spray from all directions.
X-Fusion technology ensures that all AC output sockets provide optimal output in terms of wattage and amp. In fast charging mode, the output will always be 7.2kW, no matter how much the input is.
When EcoFlow DELTA Pro Ultra is connected to Smart Home Panel 2, AC charging is disabled. 5 + 8 ports and C20 charging port mutual exclusion.
When charging EcoFlow DELTA Pro Ultra with 120V, it can output 240V normally. When charging EcoFlow DELTA Pro Ultra with 240V, it cannot output 240V. When charging at 240V using X-Stream charging via an AC inlet, AC output is not available. That is to say, when charging with high voltage 240V input voltage, all AC output is disabled.
One EcoFlow DELTA Pro Ultra can power a 3-ton central air conditioning unit. 2 × DELTA Pro Ultra can power a 4-ton central air conditioning units, while the LRA rating must be within 120A.
With only one battery pack, the fastest charging input is 6200W, taking about 92 minutes to charge from 0% to 100%.When there are two battery packs, the fastest charging input is 8800W, and it takes about 1 hour and 56 minutes to charge from 0% to 100%.
Yes. EcoFlow DELTA Pro Ultra (Inverter + Battery) works as a standalone unit powering electrical appliances of up to 7200W. There are 11 outlets on the inverter, including NEMA 5-20, TT30, L14-30 supporting 30A, USB-C, and USB-A.
What is the EcoFlow DELTA Pro Ultra Inverter's surge rating, and how long does it last?
Use the C20 outlet for a bypass mode with a 120V input. There is no bypass mode for 240V input.
When using the C20 outlet and charging at 240V, the maximum charging input is 3000W. AC output is turned off at this time.
EcoFlow Smart Home Panel 2 requires the EcoFlow app to run. EcoFlow DELTA Pro Ultra works without the EcoFlow app, but it is recommended for convenience.
EcoFlow DELTA Pro Ultra's Bluetooth version supports 4.2 and 5.0.
Yes, charging times can be set.
EcoFlow DELTA Pro Ultra is not compatible with third-party inverters.
The fastest charging power for one battery is 6200W. It takes about 92 minutes to charge one battery from 0% to 100%, but if stacked on two or more batteries, the maximum charging power can reach 8800W. It takes about 1 hour and 56 minutes to charge two batteries from 0% to 100%.
No. The EcoFlow DELTA Pro Ultra Battery needs to be connected to an EcoFlow DELTA Pro Ultra Inverter to charge. EcoFlow DELTA Pro Ultra is not compatible with third-party inverters.
It probably means there is poor contact between the charger and the phone. Try plugging it in again, changing the input port, changing the charging cable, or trying a different phone.
The battery has a self-heating function. At sub-zero temperatures, the battery pack will heat up to above-zero temperatures. However, for improved charging and discharging performance, place the battery indoors. After enabling the battery's self-heating function, the temperature will rise to the optimal level, and each discharge cycle will consume 10% of the electricity.
The battery cell will show overheating at 60 degrees. It must be stationary in a cool place for at least 2-3 hours before returning to a safe working temperature.
Switch to the app's standard mode to see an EcoFlow DELTA Pro Ultra single-unit interface.
A 274 fault is caused by a C20 outlet overcurrent. After a C20 overcurrent, it will switch to INV and discharge normally, as long as you have a split load. At this time, the maximum power should be 7200W. The custom charging mode does not support X-Boost. Once the output load exceeds the set charging power, it will cause the 274 fault. If the user needs to charge and discharge a dryer simultaneously, the C20 must be set to fast charging mode.