Name: Ecoflow DELTA Pro Ultra X Battery
Brand: EcoFlow
SKU: EFDELTAPROUXEB-1
Price: 2199.0 USD
Availability: InStock

Expand Your Energy Independence With The EcoFlow DELTA Pro Ultra X Battery

The EcoFlow DELTA Pro Ultra X Battery is the heart of your home power ecosystem — designed for homeowners who demand flexibility, security, and unstoppable performance. Whether you’re building a whole-home backup system or scaling your off-grid setup, this modular battery delivers the energy depth and intelligence your lifestyle requires.

Talk To A DELTA Pro Ultra X Expert

Phone/Text: 1-888-976-5443
Email: sales@outboundpower.com

Built to Power Your Future

6–180 kWh capacity range for homes, cabins, or businesses
10,000+ cycle life for decades of use
Compatible with EcoFlow Smart Home Panel 3 and Smart Gateway
Fast solar and AC charging for continuous uptime
Meets the highest global safety standards

The EcoFlow DELTA Pro Ultra X Battery gives you scalable, reliable, and intelligent energy — so you’re never left in the dark again.

Add more batteries anytime. Power everything, everywhere.

Where to Use Your EcoFlow DELTA Pro Ultra X Battery

At Home: Ensures critical appliances and electronics stay operational during outages.
On The Road: Powers your RV, camper, or boat effortlessly.
Off-Grid Locations: Supports renewable energy setups and remote lifestyles.
Mobile Worksites: Keeps tools and tech running in remote job environments.

Ecoflow DELTA Pro Ultra X Battery Features

6kWh Capacity for Endless Power Supply

Experience a robust 6kWh capacity that keeps your devices running no matter where you are. Whether you're at home or on the road, the EcoFlow DELTA Pro Ultra X Battery ensures a seamless power supply to safeguard your lifestyle. Draw power for your home backup systems, RV appliances, or off-grid setups with ease, knowing that high demand won't leave you in the dark.

Advanced LFP (LiFePO4) Cells for Longevity

Crafted with advanced LFP (LiFePO4) cells, this battery is designed for longevity and durability, offering reliable power for years to come. Unlike conventional batteries, the EcoFlow DELTA Pro Ultra X delivers stable and efficient energy, reducing maintenance and replacement costs—a savvy choice for both homeowners and adventurers.

Comprehensive Protection Systems for Maximum Safety

Equipped with a suite of protection mechanisms including overvoltage, overload, overtemperature, and short circuit protection, this battery prioritizes your safety. You can confidently power your electronics without fear of unexpected failures or hazards, achieving peace of mind in any environment.

Versatile Applications for Diverse Needs

From home backup during power outages to ensuring your mobile worksite is fully operational, the EcoFlow DELTA Pro Ultra X adapts to various scenarios. RV travelers and off-grid enthusiasts will appreciate its portability and reliability in remote locations, making it an indispensable companion for the modern nomad.

Compact Design for Space Efficiency

Despite its substantial power capacity, the EcoFlow DELTA Pro Ultra X is designed to be compact and space-efficient. Measuring approximately 26 x 18 x 8 inches and weighing 111.3 lbs, it fits conveniently into tighter spaces, whether within your home storage area or tucked away in a vehicle.

Ecoflow DELTA Pro Ultra X Battery Warranty

EcoFlow provides a limited warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.

What's Included

1 x EcoFlow DELTA Pro Ultra X Battery
1 x EcoFlow Battery Connection Cable 7.9 in | 0.2 m
1 x User Manual
1 x Warranty Card

Ecoflow DELTA Pro Ultra X Battery Specifications
General Specifications
Model	EFYJ751-BP
Net Weight	Approx. 50.5 kg \| 111.3 lb
Dimensions	660 × 455 × 204 mm \| 26 × 18 × 8 in.
Battery Specifications
Capacity	102.4V⎓60A, 6,144Wh
Cell Material	LFP (LiFePO₄)
Protection Type	Overvoltage Protection Overload Protection Overtemperature Protection Short Circuit ProtectionLow Temperature Protection Low Voltage Protection Overcurrent Protection
Operating Environment
Operating Temperature	-20°C to 45°C \| -4°F to 113°F
Storage Temperature	-20°C to 45°C \| -4°F to 113°F
Operating Humidity	<90%
Altitude	<3000m

Ecoflow DELTA Pro Ultra X Battery Manual

Is Outbound Power an Authorized Dealer?

Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.

How long will it take for my order to arrive?

Shipping times vary depending on your location and the product or products ordered.

Order Processing Time
Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.

After order processing is complete, you will receive tracking information to monitor your order while it is in transit.

Order Shipping Time
Following processing, it may take between 3 and 8 days to arrive, depending on your location.

Please refer to the product page for your item and reference the estimated delivery time frame for more details.

Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.

What are your shipping rates? Do you offer free shipping?

Everything on our store ships for free. Really!

What is Outbound Power's return policy?

Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.

Are Outbound Power products used/old/refurbished?

Everything sold on our website is brand-new.

Do you price match?

No — we price BEAT! Please refer to our Price Beat Promise for full details.

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EcoFlow 500 Watt Alternator charger

So far, it's been working flawlessly with my EcoFlow Delta 3 Plus
It doesn't seem to work well with my EcoFlow River 2 Pro; for some reason, I had to restart the Charger. Every time I tried to charge my River 2 Pro, eventually it wouldn't charge. There is a good possibility I did something wrong in the settings. I didn't buy it to Charger for the River 2 Pro anyway, so no big deal to me. So far, after two days, the EcoFlow Delta 3 Plus hasn't had any issues.

Thank you for taking the time to leave a review. We are glad to hear that it has been working flawlessly with your EcoFlow Delta 3 Plus. We apologize for the inconvenience you experienced with your EcoFlow River 2 Pro. Our team is here to assist you and make sure you are fully satisfied with our product. Please feel free to reach out to us if you need any help with the settings. We want to ensure that your experience with our charger is nothing but positive. Thank you for choosing Outbound Power.

Jackery Explorer 1000 Plus Portable Power Station | 1264Wh | 2000W | 800W Solar Input

Hi there! Thank you for taking the time to leave a rating for the Jackery Explorer 1000 Plus. We are pleased you're happy with it. Enjoy!

EcoFlow from Outbound Power

Outbound team is fast and responsive. With my purchases so far they have beat everyone else’s prices.

Thank you for your kind words! We’re thrilled you had a great experience with our team and found our prices competitive. We truly appreciate your support and look forward to serving you again soon.

Review of EcoFlow DELTA Pro Ultra X Whole-Home Backup

I purchased the Delta Pro Ultra X with two batteries at the end of 2025 from Outbound Power to get the best price. All three components arrived intact in three separate heavy duty boxes with ample custom molded padding to protect the units from shipping mishaps. I stacked the 3 units on the included caster tray in a new tiny home, and used the unit after a firmware update to my satisfaction. After using the unit for a short while, I charged the unit with a Honda EU3000i gas generator. A week later I installed two solar arrays, totaling 4400 watts with 2 sets of (5) 440 watt panels. I live in Southern California, so this allowed me to be fully charged in an hour or two of full morning sun. The unit has been powering the tiny home which came with a 50A shore power connection. I ran a circuit from the wall nearest the EcoFlow under the tiny home and connected to power panel via the shore power 50A outlet, by removing the outlet and splicing in the new circuit. The unit will run the tiny home no problem and has been on since the end of 2025. I may consider two more batteries after running all my consumer calcs to be 100% off grid, all electric, while satisfying San Diego County's 4 day battery reserve capacity for permitted off grid application such as mine. I'm very happy with this unit. I run Starlink, the refrigerator, an on demand propane water heater (at this time) and a minisplit, plus an inductive cook top, oven, washer/dryer, lights, etc without any issues. The simplicity of installation is peace of mind, and being plugged into the sun feels good every day. Outbound power has reached out and offered to assist if the need should present itself. So far so good!

Hello Jamie,

Thank you for taking the time to leave a review for the EcoFlow DELTA Pro Ultra X Whole-Home Backup. We appreciate your detailed feedback and are happy to hear that you are satisfied with your purchase.

It's great to know that your unit arrived safely and that you were able to easily set it up in your tiny home. We're glad that the firmware update met your expectations and that you were able to quickly charge the unit using a Honda EU3000i gas generator.

We're also pleased to hear that the solar arrays are working well for you and providing enough power for your tiny home. It's wonderful that you are able to be fully charged in just a few hours of sunlight. We understand the importance of being fully off-grid and are happy to hear that this unit is helping you achieve that.

Thank you for choosing Outbound Power as your supplier. We are always here to assist you with any further needs or questions that may arise.

We hope you continue to enjoy the simplicity and reliability of your EcoFlow DELTA Pro Ultra X. Thank you for being a valued customer.

Works Great. Very useful and a must have if you have Ultra X

Thank you for the great review! We’re glad to hear it’s working well for you. If you ever have questions or want help getting even more out of your setup, we’re here for you.

Worth every penny!!

Runs my fridge and freezer while being mobile in my food trailer. Get interface and features. Great product.

Hi there!

Thank you so much for taking the time to leave such a wonderful review of the Anker SOLIX C1000 Gen 2 Portable Power Station! We’re thrilled to hear that it’s meeting your needs and reliably running your fridge and freezer while you’re on the go in your food trailer.

It’s especially great to know that you’re enjoying the interface and features — Anker did a fantastic job designing this unit, and we’re glad it’s delivering the performance you were looking for.

Thank you again for your support, and we wish you continued success and happy trails ahead!

Peaceful Relief

We have a son with severe autism. If he is awake, he is on his computer and tablet. But if the power goes out, big trouble as he gets extremely upset. This power supply will help keep him entertained for a few hours, hopefully long enough for the power to come back.

Thank you so much for taking the time to leave us a review. We’re truly grateful you chose the Jackery Explorer 500, and it means a lot to hear that it’s helping provide stability and comfort for your son during unexpected outages. Having reliable backup power in moments like those can make all the difference. Thank you for choosing Outbound Power!

We sincerely appreciate your thoughtful review and your trust in us. If you ever need anything at all, we’re always here to help.

Jackery 5000, Runs great, plenty of power

The Jackery 5000 can run my smaller 240V welder (with adapter for the plug). As a test, I plugged in 2 vacuum cleaners, a steamer, and a clothes iron. It ran all four without issue. Plenty of power in a compact package. It might be a bit heavy if you need to pick it up or move it up stairs, but is rolls nicely on its wheels. Overall, seems like a solid unit.

Thank you so much for taking the time to leave a review for the Jackery 5000 Plus. We're glad to hear that the product is running great and providing plenty of power for your needs. It's great to know that it can handle multiple appliances without any issues. We also appreciate your feedback on the weight and portability of the unit. We hope it continues to serve you well. Please feel welcome to be in touch if we can ever be of assistance!

Good company

Called with question and received friendly service. Got my solar panel extension cord cord in a timely manner. Haven’t needed to use it yet.

Thank you for your kind review! We are glad to hear that you had a positive experience and that you received your solar extension cord quickly. Please let us know if we can ever be of service again!

Delivered quickly. Nice that Outbound Power keeps the customer updated about your order. The generator is great.

Thank you so much for the review. We are glad your order arrived quickly, and ecen happier to hear the power station is performing well for you. We truly appreciate your business!

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Ecoflow DELTA Pro Ultra X Battery

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