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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 424 reviews
Condition: New
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Availability: In Stock.
Fulfilled by EcoFlow Inc.
Arrives Sep 25 – Sep 30
Order within 23 hours and 25 minutes
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Style: Delta 3 Series 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

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


Brand: EF ECOFLOW


Voltage: 110 Volts (AC)


Model Name: EF-DL-E10


Item dimensions L x W x H: 16 x 8 x 8 inches


Manufacturer: ‎EcoFlow


Part Number: ‎EF-DL-E10


Item Weight: ‎27.5 pounds


Product Dimensions: ‎16 x 8 x 8 inches


Item model number: ‎Serie DELTA 3 Batería Adicional


Batteries: ‎1 Lithium Ion batteries required. (included)


Style: ‎Delta 3 Series Extra Battery


Power Source: ‎Battery Powered


Voltage: ‎110 Volts (AC)


Wattage: ‎1024 watts


Item Package Quantity: ‎1


Special Features: ‎Portable


Included Components: ‎Delta 3 Series Smart Extra Battery


Batteries Included?: ‎Yes


Batteries Required?: ‎No


Warranty Description: ‎5 Year Manufacturer


Date First Available: August 6, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 25 – Sep 30

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

    • Great device, watch for sales
Style: DELTA 2 Smart Extra Battery
I love my Ecoflows. I have multiple devices for home and work and they are great units and have great features. The add on to my Delta 2 is awesome as it expands the capacity and works great for extended outdoor/overland adventures. It also has enough power to run home appliances like fridges during those pesky weather outages. They seem to go on sale frequently so watch for that and check the price history. ... show more
Reviewed in the United States on July 15, 2025 by Bruce Fyfe
    • Great product
Style: DELTA 2 Smart Extra Battery
You can never be prepared enough for disasters but this helps. I purchased the Delta 2 last year and wanted to add to the system so that we could power appliances and devices longer. This extra battery is awesome and works seamlessly with the main unit. Very convenient and I don’t feel so panicky when we lose power. ... show more
Reviewed in the United States on August 8, 2025 by valerie
    • EcoFlow DELTA 3 Extra Battery: A Must-Have for Extended Camping Power
Style: Delta 3 Series 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.
    • Extra power when you need it.
Style: Delta 3 Series Extra Battery
Super easy to use, light enought to carry, just plug into base unit, charge with solar or AC, and go.
Reviewed in the United States on September 1, 2025 by L.A.M.
    • Ecoflow
Style: DELTA 2 Smart Extra Battery
I love the extra battery! However it does not have a power cord to plug it into the electrical outlet sockets. It must be connected to the river three in order for you to charge the battery. Had to go to the eco-flo store and buy a power cord Supply to connect to solar panel for charging.
Reviewed in the United States on June 29, 2025 by Deborah
    • Great unit
Style: Delta 3 Series 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
    • EcoFlow extra battery
Style: Delta 3 Series Extra Battery
The EcoFlow extra battery has doubled the power of my battery power system and charges very fast
Reviewed in the United States on July 26, 2025 by Christopher Eddy
    • Add an extra 1kwh to your Delta 2 battery system easily.
Style: DELTA 2 Smart Extra Battery
Adds an extra 1kw to my Delta 2 and works great. Would be 5 star if there was a secondary position for charging port. Useing this in my Jeep for off grid adventure I don’t stack them, so the connection port being on the side is kind of annoying in having to space/connect them. I may try and stack in rear and come up with a tie down/strap system to work around. Otherwise, it works beautifully and 2kw is the perfect t power combination for work/play/internet/fridge on the road in combination with the EcoFlow Alternator 500w keeping these charged on the road. The Size and battery life is the exact same size as the Delta2. The top compartment being a place to store the connecting cable when not in use. Value wise, these aren’t the cheapest but they’re reliable and safe to use. That’s what matters the most to me. DIY systems can be fun but also trouble. This shows up as a second battery on the mobile app. ... show more
Reviewed in the United States on August 4, 2025 by Byron D. Miller

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