Runs my entire house with ease. A/C, Dryer, Furnace, lights, TVs, etc… combine it with the Smart Home Panel 2 and you won’t be in the dark, ever! - John I.

EcoFlow DELTA Pro Ultra Battery Pack

Name: EcoFlow DELTA Pro Ultra Battery Pack
Brand: EcoFlow
SKU: EFDeltaProUltra-BP-US-1
Price: 2099.0 USD
Availability: InStock

by EcoFlow

SKU: EFDeltaProUltra-BP-US-1

Save $1,200.00

$3,299.00

$2,099.00

Found a lower price?

Send us a request and we’ll beat it today — guaranteed!

1-888-976-5443 (Call/Text)

sales@outboundpower.com

Instant Live Chat

Select Number of Battery Packs

1 x Battery

2 x Batteries

3 x Batteries

4 x Batteries

5 x Batteries

Quantity

Authorized EcoFlow Dealer

Friendly Lifetime Support

Free 30-Day Returns

The EcoFlow DELTA Pro Ultra Battery Provides Scalable Power For Home Backup, RVs, Worksites, And Off-Grid Living

Designed for seamless integration with the DELTA Pro Ultra Portable Power Station, the EcoFlow DELTA Pro Ultra Battery expands your system with 6kWh of power capacity. With up to five batteries connected, you can scale your DELTA Pro Ultra power system to a massive 30kWh. It is the ultimate power solution for whole-home backup, off-grid living, and mobile applications.

The DELTA Pro Ultra Battery is built to scale alongside your energy needs. Whether you’re powering an RV, backing up your home, or preparing for anything unexpected, this smart lithium iron phosphate (LFP) battery delivers long-lasting, reliable storage.

With advanced battery management, fast recharging options, and a 10-year lifespan, the DELTA Pro Ultra Battery ensures dependable power you can count on for years to come.

Talk To A DELTA Pro Ultra Expert

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

EcoFlow DELTA Pro Ultra Battery Highlights

One-Month Power Backup: 6kWh per battery is available for up to one-day backup, scalable to 90kWh for one-month coverage.
Space-Saving: Stack up the system in a neat, mess-free way.
One-Minute Setup: With a plug-and-play design.

EcoFlow DELTA Pro Ultra Battery Packs In Three Stacked Systems In A Garage Connected To A Smart Home Panel 2

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.

EcoFlow DELTA Pro Ultra Battery Warranty

The EcoFlow DELTA Pro Ultra Battery Pack includes a 5-year manufacturer warranty.

What's In The Box

1 x EcoFlow DELTA Pro Ultra Battery
1 x EcoFlow Battery Connection Cable
1 x Safety Guide

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.

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.

Best Price In Town

I do lots of research and Outbound Power had the best deal on what I needed. Surprise surprise. It shipped from the same warehouse as the manufacturer and the warranty works exactly the same. Glad to have found the site.

Hi RG,
Thank you for the kind words! We’re glad your research led you to us and that everything worked out as expected—from pricing to shipping to warranty coverage. We truly appreciate your support and hope you enjoy your new battery pack.

Best Customer Service!

Thank you for your great website and customer service. I ordered an item that didn’t meet my specific situation, so requested a return. OP responded promptly with their approval and a return shipping label. Ordered another item that met my needs and it was shipped within a week. Great job guys!

Hi Big El,

Really appreciate the awesome 5-star review! Glad we could jump on the return quickly and get you the exact setup you needed. That’s how we like to do things—fast, friendly, and zero hassle.

Thanks again for rolling with Outbound Power. If you need anything at all, we’ve got your back!

Great service. Good deal

Great customer service

Hi Ricky,

Thank you for the kind words! I’m glad to hear you felt taken care of and got a good deal. We truly appreciate you choosing Outbound Power, and we’re always here if you need anything else.

EcoFlow purchase

Purchased an EcoFlow inverter and two batteries to add to a 2 inverter/10 battery system. The new inverter is working as advertised and batteries are charging and discharging as they should with no issues. The Delta Pro Ultra system is the way to go if you want to go off grid, or just want reliable backup power during power outages.

Hi Dan,

Thank you so much for your review and for sharing details about your setup—that sounds like an impressive system! I’m glad to hear the inverter and batteries are working exactly as they should and integrating smoothly into your existing setup.

You’re absolutely right—the DELTA Pro Ultra system really shines for both off-grid living and peace-of-mind backup power. It’s exciting to see how you’re building yours out, and we’re grateful you chose Outbound Power to be a part of that journey.

If you ever need additional accessories, expansion options, or just want to talk through future upgrades, we’ll be here to help.

Wishing you reliable power and many worry-free days ahead.

EcoFlow Delta Pro Ultra battery

Good service, lowest price, tough to beat.

Hi John,

Thank you for your note and for choosing Outbound Power for your Delta Pro Ultra Battery Pack. I’m glad to hear you found both the service and pricing to be just what you were looking for—it means a lot to us to know we delivered on both.

We truly appreciate your business and look forward to helping with any future power needs you might have. If you ever have questions or want to explore additional options for your setup, don’t hesitate to reach out—I’m always happy to help.

Backup power

As expected. At a good price and fast delivery.

Hi Joe,

Thank you so much for your 5-star review! I’m glad to hear your EcoFlow DELTA Pro Ultra Battery Pack arrived quickly and at a great price. It’s wonderful to know everything met your expectations.

We truly appreciate your trust in Outbound Power and look forward to serving you again whenever you need us.

Outbound Power rules

I’ve purchased a variety of hardware from several different vendors and truly, Outbound Power is the best of them.

Hi Timothy,

Thank you for the incredible feedback! It means a lot to hear that Outbound Power stands out among your experiences with other vendors. We work hard to deliver the best service and value possible, and your kind words make it all worth it.

We truly appreciate your continued support — we’re always here when you're ready for your next upgrade!

Quick, efficient, best pricing.

I'm very pleased and this is a second purchase. Growing my system and would like to keep everything with one vendor. You guys rock!

Hi Norman,

Thank you so much for the kind words — we really appreciate your trust and loyalty!

It’s great to hear you’re expanding your system, and we’re honored to be your go-to vendor. We’ll keep working hard to earn that spot with every order.

If there’s ever anything else you need or have questions about, just reach out — we’re here to help.

You rock, too!

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Anker C2000 gen2

Great service as always and best prices available from Outbound Power. This Anker power station works flawlessly as all the other 5 various sizes I’ve purchased.

Hi William,

Thank you very much for taking the time to leave such a great review — we truly appreciate it.

I’m glad to hear the Anker SOLIX C2000 Gen 2 is working flawlessly for you, and it means a lot that you’ve trusted Outbound Power for multiple units across different sizes. We work hard to keep pricing competitive and service consistent, so your feedback really reinforces that we’re on the right track.

If you ever need anything down the road — accessories, expansion options, or just have questions — don’t hesitate to reach out.

Always happy to read your reviews and feedbacks for the services/products we offer.

Thanks again for your continued support.

Sales and Support

Excellent interaction with sales and support.

Hi Tom,

Thank you for taking the time to leave a 5-star review — we truly appreciate it.

I’m glad to hear you had a positive experience with both our sales and support teams. If you have any questions as you spend more time with the DELTA Pro 3, or if we can help with anything down the road, don’t hesitate to reach out.

Thanks again for your business and your support.

Solix f3000

Bought the f3000 and it is fantastic!
Dont see how you could make it easier to operate. Very simple and easy to understand. Had an issue with FedEx but Outbound power And Anker were very helpful and ready to make things right. So happy with customer service at both Outbound power and Anker !
Be ordering more soon and I have 0 worries at all

Thank you so much for your kind words about SOLIX F3000. We're thrilled to hear that you're enjoying it and that it's easy to operate. We apologize for any issues you may have had with FedEx, but we're glad to hear that our team was able to assist you and make things right. We appreciate your support. Please let us know if we can ever be of service again!

My house recently caught on fire, and I ordered this to keep my daughters RV going. Works great!

Thank you so much for sharing this. We are terribly sorry to learn your family went through that experience, but we are glad we could play a small role in helping keep your daughter’s RV powered. Wishing you and your family safety, blessings, and smoother days ahead!

JACKERY EXPLOYER 2000

So far i am well pleased with my power station. I especially enjoyed the discount I received on my purchase from Outbound Power.

Hi Craig,

Thank you for taking the time to leave a review — we really appreciate it.

I’m glad to hear you’re pleased with your Jackery Explorer 2000 v2 and that the discount made the purchase even better. If you have any questions as you continue using the power station, or if we can help with anything in the future, please don’t hesitate to reach out.

Great Power Power Station!

If need a real power outage solution then the Ecoflow Deltra Pro is you choice. It is easy to setup and use.

Hi RR,

Thank you for sharing your experience! We’re thrilled to hear that the EcoFlow DELTA Pro Ultra is giving you the reliable backup power you need. It’s always great to know our customers find the setup easy and effective.

We truly appreciate your feedback and your trust in Outbound Power. Enjoy your new power station, and don’t hesitate to reach out if you have any questions or need assistance in the future!

Best regards,
Bill

Jackery buying review

All went fine, great price, service and delivery - will buy again when needed.

Hi Ken,

Thank you for the great review — we truly appreciate it.

I’m glad to hear everything went smoothly and that you were happy with the pricing, service, and delivery. We’d be happy to help again whenever you’re ready for your next purchase.

Echoflow delta 3 max

Product work as is very happy and have salesperson followed up if everything ok is a plus

Hi there! Thank you for sharing your positive experience with the DELTA 3 Max. We're thrilled to hear that you are happy with its performance. Please let us know if there is anything else we can do to be of service!

First time buyer

I’m a first time buyer from Outbound power. I purchased the Jackery solar battery backup power system for my home and business. I’m very happy with the excellent customer service that I have received from everyone at Outbound Power.

Hi Brett,

Thank you very much for taking the time to leave such a thoughtful review — it truly means a lot to us.

We’re glad to hear you’re happy with your Jackery Explorer 5000 Plus and that your first experience with Outbound Power has been a positive one. Our team works hard to make sure customers feel supported before, during, and after their purchase, so it’s great to hear that came through.

If any questions come up as you continue using the system for your home or business, please don’t hesitate to reach out. We appreciate your trust and look forward to helping again in the future.

Delta 2 max

Great product. Have not used for outage yet

Hi Michael,

Thank you for taking a moment to leave a 5-star review — we really appreciate it.

I’m glad to hear you’re happy with the DELTA 2 Max so far. Hopefully it stays in “peaceful standby mode” and you won’t need it for an outage anytime soon, but when you do, it’s a solid and very capable unit.

If you have any questions as you get more familiar with it — whether it’s setup, expansion batteries, solar input, or best-use tips — don’t hesitate to reach out. We’re always happy to help.

Thanks again for choosing Outbound Power and for your support.