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DELTA Pro ULTRA by EcoFlow

Introducing the DELTA Pro ULTRA by EcoFlow! The EcoFlow DELTA Pro ULTRA is the latest and most powerful system in EcoFlow's arsenal. With a massive 6kWh battery capacity, 7200W output, and 5.6kW solar input, a single EcoFlow DELTA Pro ULTRA can run your entire home with ease. 

With a massive power output, battery capacity, solar input, expandability options, various charging options, and more, the EcoFlow DELTA Pro ULTRA is without a doubt one of the best Solar Generators in the market.

Why You Need An Ecoflow Delta Battery-Powered Generator

  • Lightweight & Compact Design- Compared to gasoline generators, battery generators are more compact and lightweight. A lightweight lithium battery pack and solar panel input make this portable solar generator easy to move around.
  • Safely Use Indoors - Gasoline generators are loud and emit carbon monoxide, which causes more than 500 deaths annually. During power outages or home recreational activities, you can safely use your Ecoflow DELTA  Pro portable power station indoors.
  • Save Time & Money - Maintaining a gasoline generator is expensive and time-consuming - typically maintained semi-annually at a cost of $150 per year. Battery-powered generators require no maintenance. Portable solar panels mean harnessing the free power of the sun and leaving fossil fuels in the ground.

For the past two years, EcoFlow has dedicated precious time and energy to creating the X-Stream Recharge Technology. This technology provides the fastest recharge rate on the market, working 10x times faster than competing brands of battery-powered generators. Lightning-fast charging outputs allow the DELTA Pro ULTRA to be fully recharged within 3.3 hours in a 120V outlet and 2 hours in a 240V outlet

EcoFlow DELTA Pro ULTRA Features

EcoFlow DELTA Pro ULTRA Specs

Massive Battery Capacity and Expandability 

Power outage? No Problem. The EcoFlow DELTA Pro ULTRA packs a massive 6kWh Battery which is twice or thrice the capacity of most power stations in the market right now. If that's not enough for you, you can add up to 5 EcoFlow DELTA Pro ULTRA expansion batteries to one single unit to give you 30kWh  to survive longer power outages. Need more? The EcoFlow DELTA Pro ULTRA's got you covered, expand your system to 90kWh in 15 stackable units, and get a month's worth of power security. 

EcoFlow DELTA Pro ULTRA Expandability

Massive Power Output with expandability 

 The EcoFlow DELTA Pro Ultra features a massive power output of 7.2kWh output to power even the heaviest demand appliances and your essentials all at the same time. Need more? Don't worry it doesn't stop there. The EcoFlow DELTA Pro ULTRA's ecosystem allows you to connect and pair three inverters with the EcoFlow Smart Home Panel 2 giving you 21.6kWh AC output.  

EcoFlow DELTA Pro ULTRA Massive Power Output

240V Capability and X-Fusion Technology

The EcoFlow DELTA Pro ULTRA also focuses on convenience by adding the capability of powering your 120V and 240V Devices. For heavier demand and power-hungry devices, you can use the EcoFlow DELTA Pro ULTRA's 30-amp socket. On top of the 240V capability, the EcoFlow DELTA Pro ULTRA is able to maintain a constant 7200W output no matter what thanks to its X-Fusion feature.

EcoFlow DELTA Pro ULTRA 240V 30 amp

Solar Charging and Solar Expandability

By utilizing EcoFlow's high and low-PV technologies, the EcoFlow DELTA Pro ULTRA sets a new standard industry for Solar Generators in the Market. A Single unit of the DELTA Pro ULTRA has a maximum solar input of 5.6kWh and by connecting three units you get up to 16.8kWh of solar input. This feature makes it possible to power your whole house for a day with just an hour's worth of Sunlight. Pair your EcoFlow DELTA Pro ULTRA with EcoFlow's Rigid or Portable Solar Panels and never be without power again!

EcoFlow DELTA Pro ULTRA Solar Charging

 Multiple Ways of Charging

Always stay powered with the DELTA Pro ULTRA's wide range of charging capabilities. Whether you are at home, out camping, or on the road, the EcoFlow DELTA Pro ULTRA offers a way for you to charge your power station for non-stop entertainment, comfort, and peace of mind in any situation. Out camping, pair your unit with EcoFlow's Portable Solar Panels. At home? Fully charge your DELTA Pro ultra with a 240V outlet within just 2 hours. On a road trip? Charge your EcoFlow DELTA Pro ULTRA with an EV Charging Pile.
Gas Generators also come in handy when you don't have access to solar and grid power during a power outage. 
*For faster charging times you can utilize the DELTA Pro ULTRA's MultiCharge feature to get 8800W and fully charge two batteries in only 2 hours.

EcoFlow DELTA Pro ULTRA Charing options

Safety, Security, and Peace of Mind 

The EcoFlow DELTA Pro ULTRA also prioritizes safety in any emergency. Thanks to EcoFlow X-Cooling, the DELTA Pro ULTRA efficiently dissipates heat even with hours of operation under heavy load to extend your power station's lifespan. The Ecoflow DELTA Pro ULTRA's batteries also come with an advanced BMS that regulates vital data, ensuring the safety, longevity, and high performance of your unit and give you a Battery Life cycle of 3500+ before it drops down to 80% efficiency and continuously use it even after that. To top all of these, the DELTA Pro ULTRA also comes with a 5-year warranty for that sense of security and peace of mind. 

EcoFlow DELTA Pro ULTRA Warranty

EcoFlow Smart App

Get real-time energy insights at your fingertips when you connect your EcoFlow DELTA Pro ULTRA to your smartphone with the EcoFlow Smart App.  Monitor your real-time energy consumption, charging rates, and more. With the Smart app, you can remotely control your appliances, optimize solar charging, and set peak and off-peak hours for your batteries.

EcoFlow DELTA Pro ULTRA Smart App

How to connect the EcoFlow DELTA Pro Ultra to the EcoFlow App

 EcoFlow DELTA Pro ULTRA Specs

• Net Weight (lb) -Inverter: 70 lb

• Battery:116.4 lb

• Warranty -Inverter: 5 Years, Battery: 5 Years

• 4G -Optional

• Screen - ✓

• Bluetooth - ✓

• Capacity - 6144Wh, expandable up to 90kWh

• Wi-Fi - Supported

• Dimensions (in) - Inverter: 27.2×18.9x8.4 in, Battery: 26×18×8 in

• Protection Level - IP54

• Max. Operating Altitude - 9842.5 ft

• Number of AC Outlets - 6

• AC Outlets - 120V/240V, total 7200W

• Number of USB-A Outputs - 2

• USB-A Output - 5V/2.4A, 12W Max per port, total 24W

• Number of USB-C Outputs - 2

• USB-C Output - 5/9/12/15/20V/5A, 100W Max per port, total 200W

• Number of DC Outputs - 1

• DC Output -  12.6V/30A. 378W Max

• Cycle life - 3500 cycles to 80%+ capacity

• Battery Chemistry - LFP

• Shelf life - 10 Years

• Operating Temperature - -4°F-113°F

• Noise Level - <30 dB

• Power Input / Output Port
3600W Max / 7200W Max

• AC Charging Input Port
1800W Max/3000W Max

• MPPT 1 (High Voltage PV)
4000W Max

• MPPT 2 (Low Voltage PV)
1600W Max

What's in the Box

Inverter Box 

EcoFlow DELTA Pro ULTRA Inverter Box

Battery Box

EcoFlow DELTA Pro ULTRA Battery Box

A Brief Overview of the U.S. Home Energy Tax Credit

Discover the financial advantages of the U.S. federal solar tax credit for homeowners considering installing a solar system in their main residence. This incentive provides a 30% discount on the current cost of a solar system. If you've set up a system in 2022, it's advisable to speak with your tax consultant to see if you're eligible for a higher credit rate.

Understanding the U.S. Federal Solar Tax Credit:

This tax credit is tailored for homeowners and applies to solar systems installed in primary homes. The credit covers a percentage of qualifying expenses, and thanks to the recent Inflation Reduction Act, the scope of the Investment Tax Credit (ITC) has broadened. Solar systems installed from 2022 to 2032 are eligible for a 30% tax credit, which will drop to 26% in 2033 and 22% in 2034. There's no cap on the amount you can claim.

What Expenses Are Eligible:

Qualifying expenses include solar photovoltaic panels, attic fan power systems (except for the fan itself), labor costs for installation and setup, balance-of-system components, and applicable sales taxes. Standalone batteries with a capacity of 3 kWh or more may also be eligible! For instance, if the solar system you initially purchase includes a single battery with a capacity of less than 3 kWh, but you also buy extra batteries during the installation process that bring the total capacity to more than 3 kWh, then the entire setup may be eligible for the tax credit.

How to Determine Your Eligibility:

To confirm your eligibility for this federal solar credit, review the guidelines set forth by the U.S. Department of Energy and consult your tax advisor.

Steps to Claim the U.S. Federal Solar Tax Credit:

  1. Verify Eligibility: Speak with your tax advisor to confirm your eligibility and to understand how to make the most of the credit.

  2. Fill Out IRS Form 5695: This form, available online, is specifically for claiming renewable energy credits. Guidelines for completing the form are provided.

  3. Apply Credits on Your 1040: Use the total credit amount from Form 5695 to lessen your tax liability on your Form 1040.


Always consult your tax expert to fully understand your eligibility for tax credits based on your unique situation. Wild Oak Trail offers this guide for educational purposes and does not assure tax credits based on the information given. This resource should not replace professional tax or financial advice and should not be the only factor in your purchasing, investment, or tax choices. Consult a tax expert for a personalized evaluation.

Additional Resources:

EcoFlow Warranty Policy

Please note that the warranty period may vary according to local laws and regulations. Some countries, states, and provinces do not allow limitations on how long an implied warranty may last, so the limitation described above may not apply to you. You may have other rights from state to state, province, or country.


All EcoFlow products purchased come with a limited warranty, as shown below.


Wild Oak Trail provides a limited warranty for purchases according to EcoFlow's imposed warranty policy. The warranty period starts when the original purchaser receives the products.


EcoFlow Warranty Timeline

Exclusions and Limitations

This warranty does not apply to:

· Non-quality related issues;

· Items purchased from outside of Wild Oak Trail;

· Purchases without valid proof of purchase;

· Items that have been refunded;

· Items that have expired their warranty period;

· Any defects or damages caused by misuse of products, unauthorized modification, dis-assembly or operation not in accordance with the official instructions or manuals;

· Any defects or damages caused by exposure to excessive heat, liquids or other external causes;

· Any defects or damages caused by reliability or compatibility issues when using unauthorized third-party parts;

· Lost or stolen products;

· Free products.

Cross-Regional After-Sales Service

Wild Oak Trail and EcoFlow does not provide a global product warranty, and the warranty service can only be obtained at a designated EcoFlow repair center.

To repair the product in an EcoFlow repair center when the product was purchased in another region, depending on part availability, customers can obtain a cross-regional repair service at an additional charge. (Some products do not support cross-regional repair even if the customer is willing to pay for the service. For more details, please contact Wild Oak Trail Customer Support.)

A cross-regional replacement service is not available for different versions of the same product.

The customer will need to bear customs duties, taxes, customs clearance, and other costs incurred for a cross-regional repair, regardless of whether it is the warranty or paid repair service. 

Valid Proof of Purchase

  • A purchase order number made through wildoaktrail.com;
  • Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.

Return Material Authorization (RMA) process

  • Contact Wild Oak Trail Customer Support Team at customersupport@wildoaktrail.com or +1 (844)-945-3625.
  • If your item is eligible for an EcoFlow Warranty, you will receive a prepaid shipping label. Please follow the instructions provided by Dotti or Josh from Wild Oak Trail to properly pack the products and return them safely.
  • Please note that we can only provide return shipping labels for return packages in United States. 


  • In case of replacement, delivery of the replacement item will be arranged within 15 business days (subject to changes caused by force majeure) after confirming that the defective item has been received at our warehouse. The final resolution is subject to the availability of the replacement items.
  • The replacement warranty will be covered by a period equal to the remaining warranty period of the original item. 

Free shipping on all orders to the Lower 48! 

As soon as your product is on its way out of warehouse we will email you the tracking number for your shipment. 

Free Shipping on ALL ORDERS

No Risk Damage Policy

Easy Returns

For more information about Shipping and Returns CLICK HERE

Price Guarantee

We care about our customers and want to offer the best prices available for our top notch products.

Conditions of our 100% Price Match Guarantee:

  • The item must be purchased from us before we can match it

  • Buy one, get one free offers and Rebates are not eligible

  • The item must be in stock on the competitors website

  • The competitor must be an online store, not a retail location

  • The website can't be a discounter or auction website ( such as eBay, overstock, etc.)

  • The company must be an Authorized Retailer of the product in question

  • The Price Match Guarantee is based on the final price of the product including shipping and taxes

  1. We care about you. We don't want to just sell you something and never hear from you again. We know that in order to get return business, we need to provide not only good products, but good customer service.
  2. We're a family owned business! My wife and I run Wild Oak Trail, and when you buy from our store, you're actually making a difference to our family!
  3. We LOVE being prepared. In uncertain times, it feels really good knowing that we have backup power, food and water ready to go!
  4. We source QUALITY. We expect every one of our customers to be happy with their purchase and tell their friends and family about it!