Ecoflow DELTA Pro Ultra X Battery

Name: Ecoflow DELTA Pro Ultra X Battery
Brand: EcoFlow
SKU: EFDELTAPROUXEB-1
Price: 2399.0 USD
Availability: InStock

by EcoFlow

SKU: EFDELTAPROUXEB-1

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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
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

Cumins tune up kit for 9500

This kit was simple, oil spark plug and air filter. Right off the bat the air filter sent does not fit my generator. So frustrating after waiting a couple weeks to finally get the shipment. I assume the oil is fine, we’ll see if the spark plug is correct?

Hi Ian,

Thank you for taking the time to leave a review—and I’m really sorry for the frustration here. You’re absolutely right to expect a maintenance kit to be a simple, drop-in solution, and missing the mark on the air filter is not acceptable.

We’ll get this corrected immediately. Please reply to this email (or reach out to our support team) and confirm your generator’s exact model and serial number. As soon as we have that, we'll have this worked on with our internal teams to see how we can rectify this problem.

I appreciate you calling this out and giving us the chance to fix it. We value your business and want to make sure you’re fully taken care of.

Best regards,
Bill
Outbound Power

Good communication

Thank you so much, Linda! We really appreciate you taking the time to leave a review. Clear, timely communication is something we work hard on, so it’s great to hear that stood out. If you ever need anything else, we’re happy to help.

Great battery, even better experience with Outbound Power

The battery is a great addition to my Ecoflow system, but my experience with Outbound Power was fantastic. The "first" battery arrived extremely damaged by FedEx. I emailed Outbound Power to let them know that the battery was on its way back, and they had a replacement shipped out within 24 hours. I received the replacement battery before the FedEx returned the damaged battery to them.

This was my 2nd major purchase from Outbound Power, and I have complete trust in making major purchases with them in the future.

Nick, thank you for taking the time to share this—reviews like this genuinely mean a lot to us.

While shipping damage is always frustrating, we’re glad we could step in quickly and get a replacement out to you without delay. That’s exactly how we believe these situations should be handled, and we’re happy it made a difference for you.

We truly appreciate your repeat business and the trust you place in Outbound Power for major purchases. If you ever need anything—questions, expansions, or future upgrades—we’re always here to help.

Thanks again for choosing Outbound Power.

Thank you..

Hi Eliazar,

Thank you for your purchase and for taking the time to leave a note—we really appreciate it.

If you have any questions about the product or need anything at all, feel free to reach out. We’re always happy to help.

Rich Solar Anderson Adapter to Solar Connectors

My connectors arrived on time, were a perfect fit, and after running them through a couple trial runs have performed exceptionally well. Thank you!

Victor — thank you for the 5-star review and for sharing your experience. We’re glad to hear the connectors arrived on time, fit perfectly, and performed well during your testing. We appreciate your business and look forward to supporting you again in the future.

Bought some additional batteries. Super easy to install and increase the solar capacity.

Alan — thank you for the 5-star review. We’re glad to hear the additional batteries were easy to install and helped expand your solar capacity. We appreciate your continued business and are here if you need anything as you grow your system.

Works great

I purchased this cable to connect my Ecoflow DPU Ultra inverter with 5 batteries battery, to the 2nd port of my Ecoflow SHP-2, after purchasing a new inverter from Outbound power. (A new inverter, does not come with a dedicated SHP-2 cord) Works as intended with enough reach. Would buy again.

Thank you so much for taking the time to leave a review. We're so glad to hear that the cable is working great for you. Please let us know if there is ever anything else we can do to be of service!

Power bank we didn’t know we needed

We received the Trail as a free gift of the EcoFlow Black Friday promotion. We live in an off-grid cabin, and have a couple small 1 watt fans for moving air - the Trail has been perfect for this use. It has almost as much juice as our much heavier and bulkier Jackery 300. We love it.

Hi Kate,

Thank you so much for sharing this! We’re thrilled to hear the EcoFlow TRAIL 200DC has been such a great fit for your off-grid cabin. It’s awesome to know it’s delivering that kind of performance in such a compact package—and even holding its own against a larger unit.

We really appreciate you taking the time to leave a review, and we’re glad the Black Friday promo turned into something genuinely useful for you. If you ever need anything else or have questions down the road, we’re always here to help.

Thanks again for choosing Outbound Power!
Best regards,
Bill

Awesome

Hi Michael,

Thank you for the awesome feedback! We’re glad to hear you’re happy with the Solar Panels from Jackery. Stay blessed and Happy holidays in advance.

Thank you for the awesome feedback! We’re glad to hear you’re happy with the Jackery Battery Pack 1000 Plus. If you ever have questions or need anything down the road, we’re always here to help.