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EF ECOFLOW

EF ECOFLOW Delta 3 Series Smart Extra Battery, 1024Wh LiFePO4 Expansion Battery for Power Station Delta 2/Delta 3/Delta 3 Plus/Delta 3 1500

  • Based on 6,863 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by EcoFlow Inc.
Arrives Monday, May 4
Order within 14 hours and 44 minutes
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Style: Delta 3 Extra Battery


Features

  • Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh.
  • Get 10 years of daily use until it hits 80% of its original capacity. Embrace 3000+ charging cycles enabled by the LFP battery chemistry.
  • Plug-and-play system. Use the EcoFlow app to monitor and control the DELTA 3 Smart Extra Battery.

Description

EF ECOFLOW Delta 3 Series Smart Extra Battery, 1024Wh LiFePO4 Expansion Battery for Power Station Delta 2/Delta 3/Delta 3 Plus/Delta 3 1500

Brand: EF ECOFLOW


Special Feature: Portable


Voltage: 110 Volts (AC)


Battery Cell Composition: Lithium Ion


Recommended Uses For Product: Commercial


Other Special Features of the Product: Portable


Voltage: 110 Volts (AC)


Power Source: AC


Antenna Location: Commercial


Battery Cell Type: Lithium Ion


Item Weight: 12.5 Kilograms


Battery Weight: 9690 Grams


Item Dimensions: 16 x 8 x 8 inches


Brand: EF ECOFLOW


Number of Batteries: 1 Lithium Ion batteries required. (included)


Model Name: EF-DL-E10


Model Number: Serie DELTA 3 Batería Adicional


UPC: 842783143211


Item Type Name: power station


Built-In Media: EcoFlow DELTA3 Plus Extra Battery


Manufacturer: EcoFlow


Warranty Description: 5 Year Manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 4

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Good back up works great
Style: Delta 3 Extra Battery
Great quality
Reviewed in the United States on February 24, 2026 by Ronnie Walker
    • EcoFlow DELTA 3 Extra Battery: A Must-Have for Extended Camping Power
Style: Delta 3 Extra Battery
Review Image by Jared W. Jared W.
Review Image by Jared W. Jared W.
Review Image by Jared W. Jared W.
The EcoFlow DELTA 3 Smart Extra Battery has been a fantastic addition to our camping gear. With its extra 1024Wh capacity, it keeps our DELTA 3 Plus running longer, so we never worry about running out of power during our trips. One thing we love is how long-lasting it is. Thanks to its LFP battery, it can handle over 4000 charging cycles, which means it’ll be with us for many adventures to come. Setting it up was a breeze. We just connected it to our DELTA 3 Plus, and the EcoFlow app lets us easily check how it’s doing. Its compact design is a big plus, making it easy to pack and stack with our other gear. Knowing it comes with a 5-year warranty gives us extra peace of mind. All in all, the DELTA 3 Smart Extra Battery has made our camping adventures more enjoyable by providing reliable and extended power when we don’t want to bring our much bigger EcoFlow Delta Pro Ultra. ... show more
Reviewed in the United States on February 13, 2025 by Jared W. Jared W.
    • Great unit
Style: Delta 3 Extra Battery
Works great. Doubled capacity on my Delta 3 plus. Plan to get another one for my second Delta 3_plus. Wish Ecoflow would make a 2048 battery in this style. Anyway very pleased with this unit. Set up very simple. Relatively light weight. No complaints.
Reviewed in the United States on July 17, 2025 by joe c
    • Great product, missing 1 thing
Style: Delta 3 Extra Battery
Does what it’s supposed to, I wish EcoFlow would make these chargeable without the main device, I’d buy another as a backup 😂
Reviewed in the United States on March 17, 2026 by Caleb Griffith
    • Company refunded me my purchase price.
Style: Delta 3 Extra Battery
I ordered this battery for my EcoFlow Delta series three battery, but it would not connect to it as my model was a Classic and didn't have the proper connection. I sent it back, and Amazon refunded the full price. The company sent me a prepaid mailing label. I was satisfied with the transaction.
Reviewed in the United States on February 13, 2026 by Erik "Fingers" Ray
    • backups
Style: Delta 3 Extra Battery
yes nice easy to set an get going
Reviewed in the United States on March 21, 2026 by Amazon Customer
    • Producto de calidad útil para el uso diario em casa....
Style: Delta 3 Extra Battery
Muy importante este producto, puedes tener el doble de la capacidad de tu EcoFlow gracias a esta batería extra.... se la recomiendo a todos los usuarios que tiene los modemos Delta 3...
Reviewed in the United States on February 17, 2026 by Rafael Arturo Bermudez Marin
    • A little more than "Plug & Play" !
Style: Delta 3 Extra Battery
Likes - Fits nicely on top of EF Delta 3+ Cable more longer & flexible than anker (c1000 Exp cable) Nice design Meh features - Weight ? Not for the weak Dislikes - Can't shut it off (independent of main unit) Confusing display Modes (Pwr On vs Chrg display) Hard to keep straight & read modes (Chrg, Fault, Updte vs Breathing, Rapid flashing) What the Heck does press "2x" do ? No Instructions in English (QR code LkUp manditory) Pro Tip - Make sure both units are off (AC, USB & DC), cables are removed before connecting battery. (ask me how I know how to avoid a 12hr fsault) ... show more
Reviewed in the United States on March 3, 2026 by Placeholder

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