“We are in love with the EcoFlow DELTA Pro Ultra!”
“Our Grid Meter is finally going backward for good. Would highly recommend Ecoflow Delta Pro Ultra and Outbound Power for their amazing communication and fast shipping." - Ricky X.
EcoFlow DELTA Pro Ultra Portable Power Station & Whole Home Backup
✔ Authorized EcoFlow Dealer ✔ Fast & Free Shipping ✔ Free & Easy No-Risk Returns ✔ Financing Available ✔ Price Beat Guarantee ✔ Manufacturer Warranty Included
Condition: New
SKU:EFDPUPCS-BP
Fast & Free Shipping
On all products
Friendly Expert Support
+1 (888) 976-5443
Easy No-Risk Returns
Free + no questions asked!
Financing Available
Buy now, pay later
EcoFlow DELTA Pro Ultra Is The Ultimate Solution For Unbreakable Power Security For Your Home Or Off-Grid Living
”Like a Tesla Powerwall on Wheels.” - CNET
Introducing EcoFlow DELTA Pro Ultra, the world's first expandable ecosystem for whole-home backup power and off-grid living. This revolutionary product goes beyond just being a portable power station; it's a complete energy management system that can power your entire home during outages and provide clean, renewable energy for everyday use.
What Can DELTA Pro Ultra Do For You?
(Literally) Run Your Entire Home
One 7200W DELTA Pro Ultra unit can run your entire home, including a central air conditioner (Locked Rotated Amps [LRA] up to 120A).
Power Your Home Up To A Month
The DELTA Pro Ultra unit has a scalable capacity up to 30kWh with one inverter stack and a massive 90kWh with three inverter stacks - which has the potential to power your home for up to a month.
Provide a Full Day of Power With One Hour of Solar Charge (1 Hour of Solar = 1 Day of Use)
DELTA Pro Ultra supports a plug-and-play home solar system of 5.6kWh - 16.8kWh (per inverter with 5.6kWh input) of solar input.
Power All of Your Appliances, Including Your Washing Machine + A/C Unit
With its continuous 7200W output, the DELTA Pro Ultra is powerful enough to run even demanding household appliances, like a 3-ton central air conditioner or a washing machine.
Provide Reliable Backup Power For 10-20 Years (really!)
DELTA Pro Ultra can charge and discharge up to 3,500 times and still retain 80% of its battery capacity. That means you can run it every day for nearly 10 years an still retain most of its battery power.
Experience Never-Ending 7.2kWh Output with EcoFlow's X-Stream Technology - Even While Charging in Bypass Mode!
EcoFlow's proprietary X-Fusion advanced technology ensures all AC output sockets provide optimal output when the product is in bypass mode (when you recharge and discharge the device simultaneously, the device enables bypass mode automatically), in terms of wattage and amp. In the fast charging mode, the output will always be 7.2kW no matter how much the input is. This means you receive optimal power output regardless of the device's operating mode.
You Can Charge DELTA Pro Ultra 8 Different Ways
Smart Home Panel 2
AC Charging (wall outlet)
EV Charging Pile
EcoFlow Dual Fuel Smart Generator
Gasoline Generator
High-PV Solar
Low-PV Solar
Multiple Simultaneous Charging Methods
EcoFlow DELTA Pro Ultra + Smart Home Panel 2: The World's First Smart Hybrid Whole Home Backup
With DELTA Pro Ultra and the EcoFlow Smart Home Panel 2, when the grid goes down, your power stays on. Your system can control every appliance to give you the best Power Independence plan during outages. And with its stackable design, you can easily expand DELTA Pro Ultra storage in minutes, making it a perfect fit for garages or closets.
How It Works
The Smart Home Panel 2 is the center of the whole-home backup system. It is complete with internal auto-switchover for instant backup. The panel is divided into the distribution panel and the battery connection box. Internal switches inside the distribution panel, technically known as "relays," allow you to remotely control your backup system.
1. Connect Smart Home Panel 2 to Your Home Power Panel
The Smart Home Panel 2 is used as a sub panel to connect with the main panel to access grid power. It can also be connected to a generator, with an inlet box that allows you to easily connect your generator to the panel and to DELTA Pro Ultra for energy storage. At the same time, you can connect solar panels to the power station. The Smart Home Panel 2 can intelligently manage all these power sources, grid, batteries, solar panels, and gas.
2. Connect Up to 3 Delta Pro Ultra Inverters to Smart Home Panel 2
The EcoFlow Smart Home Panel 2 connects up to 3 sets of DELTA Pro Ultra inverters (and each inverter supports up to 5 battery packs). The panel serves as an auxiliary distribution point for electricity from your home's main panel and provides extra breakers for your backup loads.
3. Connect With The EcoFlow App To Easily Monitor & Control Your Power Usage
The DELTA Pro Ultra can be used to create a whole home backup system that stores power for your appliances. You can monitor daily, monthly, and annual data as well as manage your settings using the EcoFlow app. You will enjoy an outage-free life after installing this whole home backup system, which is specifically suitable for emergency backup during power outages, peak power demand, and more.
Enjoy Month-Long Power Security & Automatic Switch-Over During Power Outages
Enjoy an uninterrupted power backup experience with automatic switch-over, energy consumption monitoring, and lower electricity bills. 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.
EcoFlow strongly recommends the EcoFlow Smart Home Panel 2 is installed by a professional EcoFlow-certified electrician.
DELTA Pro Ultra Warranty
The EcoFlow DELTA Pro Ultra has a 5-year warranty, with its LFP batteries lasting for as long as 10 years with up to 3,500 cycles.
What's Included
DELTA Pro Ultra Inverter Box
1 x DELTA Pro Ultra Inverter (70 lbs)
1 x Portable Stand + 4 x Wheels
1 x Assembly/Disassembly Tool
1 x Solar Low-PV Charging Cable
1 x AC Charging Cable C-20
1 x Quick-Start Guide
1 x Warranty Card
DELTA Pro Ultra Battery Box
1 x DELTA Pro Ultra Battery (116 lbs)
1 x Inverter/Battery Connection Cable
1 x Safety Guide
Smart Home Panel 2
1 x EcoFlow Smart Home Panel 2 (glass door and deadfront cover packaged separately)
1 x Marking-off Template
1 x EcoFlow Power Input/Output Cable*
*Two Power Input/Output Cables are included with two inverter purchases, and three Power Input/Output Cables are included with three inverter purchases.
Frequently-Asked Questions
Can I charge DELTA Pro Ultra with a portable generator while it also charges my home?
This is possible only if the generator has a total harmonic distortion (THD) of 8% or less and it has a pure sine inverter. Otherwise, it might be possible, but damage may occur to the DELTA Pro Ultra batteries.
Can an electrical appliance plug directly into EcoFlow DELTA Pro Ultra?
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.
How many ways can EcoFlow DELTA Pro Ultra connect to a home?
There are 3 ways EcoFlow DELTA Pro Ultra can connect to a home:
Inlet box
Transfer switch
EcoFlow Smart Home Panel 2
Can EcoFlow DELTA Pro Ultra be charged using an EcoFlow Smart Generator?
The EcoFlow Dual Fuel Smart Generator can charge the 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 switched on or off through the EcoFlow app.
Can the EcoFlow DELTA Pro Ultra charge using existing rooftop solar?
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 Max Low 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.
Can EcoFlow DELTA Pro Ultra/EcoFlow Smart Home Panel 2 run without the EcoFlow app?
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.
Can the EcoFlow DELTA Pro Ultra connect to the original EcoFlow Smart Home Panel?
No. You can purchase an EcoFlow Smart Home Panel 2 and an EcoFlow Double Voltage Hub - Power Input/Output (DELTA Pro) (connects 2 × EcoFlow DELTA Pro to EcoFlow Smart Home Panel 2) to replace the original EcoFlow Smart Home Panel and connect 2 × EcoFlow DELTA Pro Ultra and 2 × EcoFlow DELTA Pro at the same time to achieve a 21.6kW output.
Will the Smart Home Panel 2 work with a DELTA Pro?
If you connect one DELTA Pro, it will only get charged through the Smart Home Panel 2 - it will not discharge.
However, if you connect 2 DELTA Pro power stations with the Double Voltage Hub, they can charge and discharge with a maximum output of 7200W.
How many EcoFlow DELTA Pro/EcoFlow DELTA Pro Ultra units are supported by EcoFlow Smart Home Panel 2?
EcoFlow Smart Home Panel 2 can connect to EcoFlow DELTA Pro and EcoFlow DELTA Pro Ultra. Up to 3 EcoFlow DELTA Pro Ultra Inverters can connect to EcoFlow Smart Home Panel 2, with each inverter allowing for 5 batteries. A total of 2 EcoFlow DELTA Pro units can connect to the EcoFlow Smart Home Panel 2 using the EcoFlow Double Voltage Hub - Power Input/Output (DELTA Pro).
Does EcoFlow DELTA Pro Ultra work with an existing grid-tied system that does not have a backup feature?
Unfortunately, EcoFlow DELTA Pro Ultra cannot connect and feed back to the grid.
Does a single EcoFlow DELTA Pro Ultra have a 240V output?
Yes, it does. Even if EcoFlow DELTA Pro Ultra is connected to 120V, it can output 240V.
Can an EcoFlow DELTA Pro Ultra Battery charge without the EcoFlow DELTA Pro Ultra Inverter?
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.
How long is the EcoFlow DELTA Pro Ultra warranty?
EcoFlow Smart Home Panel 2 has a 10-year of quality assurance warranty. EcoFlow DELTA Pro Ultra has a 5-year warranty, with its LFP batteries lasting for as long as 10 years with up to 3500 cycles.
How long does it take to install EcoFlow Smart Home Panel 2?
EcoFlow Smart Home Panel 2's installation time may vary depending on the scope of work required and the current configuration of the circuits in your home. For most homes, EcoFlow Smart Home Panel 2 installs in 3-8 hours, which is similar to replacing a standard distribution box.
Can I install the EcoFlow Smart Home Panel 2 by myself?
EcoFlow Smart Home Panel 2 must be installed by certified installers and electricians who have completed EcoFlow Smart Home Panel 2 product training.
Will installing EcoFlow Smart Home Panel 2 and EcoFlow DELTA Pro Ultra affect NEM 2.0?
No. Since EcoFlow DELTA Pro Ultra it won't affect NEM 2.0. It cannot be connected to NEM 2.0 rooftop photovoltaic systems, so a new system would need to be installed.
What type of cables do I need to connect my solar panels to DELTA Pro Ultra?
DELTA Pro Ultra has two solar input ports: a Low-PV input port and a High-PV input port.
The Low-PV input port requires an MC4 to XT90 cable which is included with your DELTA Pro Ultra purchase. The High-PV input port requires an MC4 to MC4 cable which is not included.
Which port on the DELTA Pro Ultra does a generator plug into?
A generator can be plugged into the Power Input/Output port.
Can DELTA Pro Ulta be charged with multiple power sources? Can it be charged by solar and AC at the same time?
Yes, DELTA Pro Ultra has a feature called Multi-Charging that allows for power input to the inverter of 1.6kW of solar through the Low-PV Input Port and 7.2kW of AC through the AC input and the High-PV Input Port.
Can EcoFlow DELTA Pro Ultra connect to the electrical grid?
No, EcoFlow DELTA Pro Ultra is a solar-powered home backup system that functions independently of the grid. It can’t sell electricity back to the utility company, but it can be charged with solar panels for off-grid use.
Does EcoFlow DELTA Pro Ultra qualify for solar tax credits?
Yes, if you live in the US, you may be eligible for a 30% tax credit on the cost of EcoFlow DELTA Pro Ultra and solar panels.
Is EcoFlow DELTA Pro Ultra a better alternative to a standby generator?
EcoFlow DELTA Pro Ultra is a clean and quiet alternative to a gasoline or propane generator. It produces no emissions and can be used indoors or outdoors. It can be recharged with solar panels or the electrical grid.
How many appliances can I run with EcoFlow DELTA Pro Ultra?
The number of appliances you can power depends on the wattage of the appliances and the capacity of your EcoFlow DELTA Pro Ultra system. You can expand the system with additional batteries and inverters to run more appliances or high-wattage devices like air conditioners.
How long will EcoFlow DELTA Pro Ultra power my house?
The runtime depends on your home's energy consumption and the capacity of your EcoFlow DELTA Pro Ultra system. You can extend the runtime by adding more batteries or using solar panels to generate electricity for continuous charging.
DELTA Pro Ultra & Smart Home Panel 2 Instructional Videos
EcoFlow DELTA Pro Ultra Specifications
DELTA Pro Ultra Inverter General Specifications
Model
EFYJ751-PCS-US
Net Weight
31.7 kg | 69.9 lbs
Dimensions
690 × 481 × 214 mm | 27.2 × 18.9 × 8.4 in
Wi-Fi
Frequency range: 2,412-2,462MHz | 2,422-2,452MHz Maximum output power: 0.3597W
Bluetooth
Frequency range: 2,402-2,480MHz Maximum output power: 0.0109W
Discharging temperature: −20°C to 45°C (−4°F to 113°F) Charging temperature: −20°C to 45°C (−4°F to 113°F) Storage temperature: −20°C to 45°C (−4°F to 113°F) Optimum temperature: −20°C to 45°C(68°C to 86°F))
DELTA Pro Ultra Inverter Output Specifications
AC Output
Discharging: Pure sine, 7200W Max, 120V/240V~ 60Hz Bypass: 100-120V~30A total, 50Hz/60Hz, 3600W Max
AC Output Ports (20A)
4 x AC Output Sockets: 120V, 20A Max Per Port
AC Output Ports (30A)
1 x AC Output Socket: 120V, 30A Max 1 x NEMA L14-30 120/240V Split Phase Port
USB Ports
2 x USB-A: 5V⎓2.4A, 12W max per port, total 24W 2 x USB-C: 5/9/12/15/20V⎓5A, 100W max per port, total 200W
DC Output
1 x DC Port: 12.6V⎓30A, 378W Max
Anderson DC Port
1 x Anderson DC Output Port: 12.6V, 30A, 378W Max
Input/Output Port (Infinity Port)
1 x Power Input/Output Port: 100-120V, 30A; Serves as both an AC input (for charging) and output (for connecting to the Smart Home Panel 2 or EV Charger)
DELTA Pro Ultra Inverter Input Specifications
AC Input
Charging: 100-120V~15A; 200-240V~12.5A, 50/60Hz Bypass: 100-120V~15A, 50/60Hz (duration < 3hrs when the current exceeds 12A)
Power Input/Output (Infinity Port)
100-120~30A; 200-240V~30A, 50/60Hz
High Photovoltaic (PV) Input
80-450V⎓15A max, 4,000W max
Low Photovoltaic (PV) Input
30-150V⎓15A max, 1,600W max
Standby Power Consumption
<12W
DELTA Pro Ultra Battery Specifications
Model
EFYJ751-BP
Net Weight
52.7 kg | 116.4 lbs
Dimensions
660 × 455 × 204 mm | 26 × 18 × 8 in
Capacity
102.4V⎓60A, 6,144Wh
Cell Material
LFP
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
Operating 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))
Maximum Operating Altitude
3000m | 9842.5ft
IP Protection Rating
IP54
EcoFlow DELTA Pro Ultra Manual & Downloads
EcoFlow DELTA Pro Ultra Manual
EcoFlow DELTA Pro Ultra Brochure
EcoFlow DELTA Pro Ultra Quick-Start Guide
How Many EcoFlow Solar Panels Can I Connect To DELTA Pro Ultra?
We have really been impressed with our DPUs and their ability to power our whole home during outages. To give you some context-we have 2x DPUs with 3 batteries each for a total of 36kW. Because of the location of our main service panel, we simply did not have the flexibility to get a SMHP2. Our basement is finished, our 200 Amp main panel is in the corner of our laundry room of all places. Right next to the dryer and washer (you can see the dryer in the pic below). It is crazy to me why they would place everything in that corner of the house when it was built back in 1993 but they did. I was quoted thousands of dollars to relocate my service panel and almost as much to install the SMHP2 and they would need to tear up some of finished basement walls. That was a no-go.
So we found some excellent sales with Outbound Power and had our DPUs in a couple of weeks. We went with a simplified set up using the 50 Amp Hub, interlock switch, a double throw switch and 50-amp inlet. We run a 50-amp cable from the hub to the inlet. My wife did not want me to mount the hub on the wall, so I built a little stand for it. It works like a charm.
Trying to find the limits of our set up this past weekend, I connected the DPUs and ran the entire panel, no managing loads at all. At one time, we had the heat on upstairs and downstairs (two 2-ton heat pumps), the oven, washer and dryer were used, lights, water heater came on as people showered, TVs, etc, etc, etc. Basically, we had a full load of house totaling 10kW+ (pic below) and the DPUs did not miss a beat. This tells me that for extended periods of outage and managing loads, we can definitely go a day+ using these if need be. This gives us some great flexibility for power back up between using our dual fuel generator and DPUs.
My plan for extended outages is to use my external inlet for my generator during the day and in the evening shut it down to secure it. Then switch to the DPUs inside for overnight to avoid worrying about a running generator. Our goal is to get 4 more batteries and get to 60kW. I LOVE THESE!!!
Hi Rafael, I can't thank you enough for taking the time to share your impressive experience with your Delta Pro Ultra system. Your detailed review is incredibly valuable, not just for us, but for other customers considering a similar setup.
I am delighted to learn the dual DPU configuration has exceeded your expectations and provided a reliable home backup solution. Your clever approach to working around the challenges of your home's layout demonstrates the flexibility of the products, and I'm glad you found a setup that works perfectly for your needs.
Your stress test of the system is particularly impressive. Running your entire home, including heat pumps and appliances simultaneously, showcases the DPU's robust performance. It's great to know that you feel confident in your ability to power your home during outages.
I love your creative solution for housing the 50A Hub, and your strategic plan for using both the DPUs and your dual fuel generator for extended outages is smart and practical.
Your goal to expand is exciting, and we look forward to supporting you in that upgrade when you're ready.
Thank you again for your helpful and enthusiastic review and for being part of the EcoFlow community. We're honored to play a role in providing you with energy independence and peace of mind.
If you have any questions about your current setup or future expansions, please don't hesitate to reach out to our customer support team. It would be our pleasure to serve you again!
Best regards, Bill
J
James C.M.
Best bang on time!
Experience to.good to be true but it was! Thanks for a fair price and prompt delivery.
Thank you so much for the great feedback! I'm thrilled to hear that your EcoFlow DELTA Pro arrived right on time and that the experience was even better than expected. We always aim to provide fair pricing and prompt service, so it's wonderful to know we hit the mark for you. If you need any further assistance or have more feedback, feel free to reach out. Enjoy your new power station!
E
Ed
Excellent investment. Kept us up and running during hurricane.
Thank you for sharing your experience! I’m so glad to hear that the EcoFlow DELTA Pro Ultra kept you powered up during the hurricane—it’s great to know it proved to be a solid investment in such a critical time. If you need anything or have more feedback down the road, don’t hesitate to reach out. Stay safe, and thanks again for your review!
R
Rafael A.
Outbound Power is my go to for Power Back Up!
Had a great experience with the team at Outbound Power! Great 4th of July deals for Ecoflow DPU- excellent communications and quick shipping arrangements. They always kept us informed of where our shipments were. Would highly recommend and will use again if my wife will allow me to buy more DPU batteries in the future! :)
Thank you so much for your amazing review! We were more than happy to help and we hope you enjoy the Delta Pro Ultra!
R
Robbie T.
Excellent whole house backup system.
Two Delta Pro Ultras with a total of 12.28 kwh of battery powered the roof AC and all the appliances for 3 hour. Looking forward to adding more batteries in the future. Much better than a gas generator and doesn't make all the noise.
Outstanding! This is fantastic news and we could not be happier with your satisfaction with the Delta Pro Ultra. We are always available if we can ever be of service!
Thank you so much for your review! We're thrilled that you're satisfied with your solar panels. Your support means a lot to our team and helps us continue improving our offerings. We look forward to serving you again in the future!
Thank you for your 5-star rating! We always appreciate hearing from happy customers and we are please you are satisfied with the Delta Pro Ultra Battery. Please feel welcome to let us know if we can be of further assistance!
Runs my entire house with ease. A/C, Dryer, Furnace, lights, TVs ect…combine it with the smart home panel 2 and you won’t be in the dark ever! When the power goes out it instantly switches to the backup.
Thank you for your fantastic review of the DELTA Pro Ultra Battery! We're thrilled to hear that it's powering your entire home so effortlessly, even handling heavy-duty appliances like your A/C and dryer. Pairing it with the Smart Home Panel 2 truly makes for an unbeatable backup solution.
It’s awesome to know you’re never left in the dark—literally! If you ever have any questions or want to explore more ways to optimize your system, we’re just a message away. Thanks again for choosing Outbound Power, and happy powering!
I bought two River 2 Pros from Outbound Power to give as Christmas presents to my two sons. I am very satisfied with my purchase and the price. Additionally, i found Outbound Power to be a reliable and good company to deal with.
(I already had a River 2 Pro, so can testify that i really love the versatility and portability and it holds a good amount of power suitable for almost any occasion. With ease, (it weighs only 17 pounds), I can use it at home or put it in my vehicle when taking trips.
As a side note: Additionally, i have other EcoFlow products (Delta Pros) and am very satisfied with them. From my experience, I have found EcoFlow to be a good company who produces good products and stands by their customers. I just had one of my Delta Pros repaired and EcoFlow stood by me every step of the way.
Thank you for such a glowing review of the EcoFlow RIVER 2 Pro and your experience with Outbound Power. We're thrilled that you're satisfied with your purchase and chose us for such thoughtful Christmas gifts for your sons—what an amazing gesture!
It's wonderful to hear how much you appreciate the portability and versatility of the RIVER 2 Pro and how it complements your other EcoFlow products like the Delta Pros. Your kind words about EcoFlow's customer support and reliability echo our goal to provide you with top-tier products and service every step of the way.
If there’s anything we can assist you with or if you’re eyeing more EcoFlow gear, don’t hesitate to reach out. Wishing you and your family a fantastic holiday season powered by EcoFlow!
