DELTA Pro 3 Extra Battery Left And Front View

EcoFlow DELTA Pro 3 Smart Extra Battery

Name: EcoFlow DELTA Pro 3 Smart Extra Battery
Brand: EcoFlow
SKU: EFDELTAPRO3EB-1
Price: 2199.0 USD
Availability: InStock

by EcoFlow

SKU: EFDELTAPRO3EB-1

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$2,599.00

$2,199.00

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Double Down On Power And Freedom With The DELTA Pro 3 Smart Extra Battery

Experience true energy independence with the EcoFlow DELTA Pro 3 and the DELTA Pro 3 Smart Extra Battery. This cutting-edge expansion battery seamlessly integrates with your DELTA Pro 3, doubling its capacity to a mighty 8kWh. Add a second battery and reach a sky-high 12kWh of super power.

Imagine powering your essential appliances, electronics, and even medical devices for extended periods during outages, off-grid adventures, or worksites lacking reliable electricity.

What's Included

1 x EcoFlow DELTA Pro 3 Smart Extra Battery
1 x EcoFlow Extra Battery Cable
1 x Quick-Start Guide
1 x Safety Guide
1 x Warranty Card

EcoFlow DELTA Pro 3 Smart Extra Battery Specifications

Color	Black & Galactic Silver
Weight	33 kg \| 72.7 lbs
Dimensions	694 × 295 × 215mm \| 27.3 x 11.61 x 8.4
Capacity	4096 Wh
Output	40V-58.4V=100A Maximum
Input	40V-58.4V=80A Maximum
Display	LED Array
Discharge Temperature	-10°C ~ 45°C \| 14 ~ 113°F
Charge Temperature	0°C ~ 45°C \| 32 ~ 113°F
Storage Temperature	-10°C ~ 45°C \| 14 ~ 113°F
Wheels Support	No
Tie Rod Support	No
Stack	Horizontal or Vertical
Connection	1 x Extra Battery Port

Nothing but best price

That’s all I felt

Thank you, Chung-Yuan! We’re glad you found the best price with us. If you ever need anything else, we’re here to help!

Fast

The price was right and the delivery was fast. I can hardly wait till this item is on sale again, need a couple more. Thanks

Thank you, Kenneth, for your positive review! We're glad to hear you found the price right and the delivery fast. We appreciate your support and look forward to serving you again when this item goes on sale. Thanks for choosing Outbound Power!

Works well - plug and play

The expansion battery shipped out quickly, it was a plug-and-play install. Thanks for the positive buying experience.

Thank you, Alan, for your fantastic review! We're glad to hear that the Delta Pro 3 expansion battery arrived quickly and that the plug-and-play install was smooth for you. Your positive buying experience is exactly what we strive for, and we're here if you ever need any further assistance. Enjoy your expanded power setup!

Finished off my System

The addition of the new EcoFlow DeltaPro 3 Extra Battery Pack has really allow my system to shine. Before I was depleting my system and requiring supplemental Grid power to charge my system. Now, It able to keep up with my loads and use solar to keep it charged. OutboundPower had that best price and delivery was very quick. I can't be any happier.

Thank you, Michael, for your fantastic review! We're thrilled to hear that the addition of the Delta Pro 3 Extra Battery Pack has completed your system and helped you move away from supplemental grid power. It's great to know that our pricing and quick delivery contributed to your positive experience. We're always here to support your power needs, and your satisfaction is our priority. Thanks for choosing Outbound Power!

Full transparency and fast shipping

This is my first order from outbound and I must say will certainly not be the last. Constant, relevant communication throughout the order process and fast delivery. Outbound has become my “go to” for all my EcoFlow needs.

Thank you, Josh! We're thrilled to hear that your first experience with Outbound Power was a great one. Providing transparency, fast shipping, and great service is what we aim for. We appreciate your trust and look forward to being your go-to for all things EcoFlow!

The phone representative was knowledgeable and informed me of a sale that was going on and gave me the best price on the product. He confirmed shipping and kept me updated all the way through delivery.

Hi James,

Thank you for sharing your experience! We're so glad to hear that our phone representative was able to assist you with expert knowledge and ensure you received the best possible price. It's also great to know the communication throughout the shipping process met your expectations.

We truly appreciate your support and look forward to helping you again in the future. If there's anything else you need, don’t hesitate to reach out.

The system

Everything came in great shape and everything works so good would recommend it to anyone cause it works great

Thanks so much for the great review! We're thrilled to hear that everything arrived in perfect shape and is working well for you. Please let us know if we can ever be of service again!

Ankor F2600

Works great for backup boondocking power when camping and traveling with our RV.

Hi Donald,

Thank you for the great review! We're so glad to hear the Anker SOLIX F2600 is working well as a backup power source for your RV adventures. It’s a solid choice for boondocking, and we’re happy it’s meeting your needs.

If you ever have questions or need support while on the road, we’re just a message away.

Works as advertised

So far everything works as advertised. Haven’t used all the features yet.

Hi Cliff,

Thank you for leaving a 5-star review! We're glad to hear your Anker SOLIX C300X is working as advertised so far.

If you have any questions as you explore more of its features, feel free to reach out — we're always happy to help.

All positive...great selection and all the info I was concerned about was available up front

Great selection of equipment to choose from, all relevant info, very helpful and easy to shop

Hi Tim,

Thank you for your kind words! We're thrilled to hear that you found our selection helpful and that the information you needed was easy to access. Making your shopping experience smooth and informative is exactly what we aim for.

If you have any questions down the line or need assistance with your Cummins Onan P5000iDF, feel free to reach out — we’re always happy to help.

Cummins Generator

So far this unit has exceeded my expectations!! Runs everything in my RV.
Working with Outbound Power was awesome. They kept in touch the whole time until the unit was delivered. Their shipping was fast and flawless. They gave me a date I would have it and it was right on time.
I would definitely order from Outbound Power again.

Thank you so much for the fantastic review! We’re thrilled to hear the unit is exceeding your expectations and powering everything in your RV. It was our pleasure to keep you updated throughout the process—we know how important it is to have reliable service and timely delivery. We truly appreciate your trust in us and look forward to serving you again in the future!

Good. No problems.

Order interface was easy and intuitive, and Lower prices.

Thanks for the great feedback! We're glad you found the ordering process easy and appreciated the competitive pricing. We hope to serve you again soon!

Service

Very helpful and follow through delivery process.

Hi Bruce,

Thanks so much for your kind words! We're really glad to hear that you found our service helpful and that the delivery process went smoothly.

If there's anything else we can assist you with or if you have any questions about your Cummins Onan P5000iDF, please don't hesitate to reach out. We're always here to help!

Great company

When my generator arrived it had to ground wires that were not connected properly and hard hard to get too and the screws were stripped out. However, Bill the owner of Outbound Power took care of it got repaired and were up and running very efficient / good company to work with if you have an issue. to me this is the most important that they take care of the customer after the purchase if there is a problem. 😊

Thank you for your kind review! We are sorry the generator didn’t arrive in perfect condition, but we are really glad we were able to get things resolved quickly for you. We believe strongly in standing behind our customers, especially when something doesn’t go as expected. We truly appreciate your patience—and your trust in Outbound Power!

EcoFlow in-out power cable

The EF power cable arrived in excellent condition and packaged in an anti-static bag. Hooked the power cable up and it’s been running as designed. I can rely on outbound power.com for all my EcoFlow and Anker and devices.

Hi Louie,

Thank you for your thoughtful message! We're so glad to hear that your EcoFlow power cable arrived in excellent condition and is working just as expected.

It means a lot to us that you feel confident relying on Outbound Power for your EcoFlow and Anker needs. We're always here to support you and look forward to serving you again in the future.