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SKU: EFDELTA3P-EB Tags: EcoFlow
 In Stock

EcoFlow DELTA 3 Smart Extra Battery

Features:
  • Expandable Capacity: Add an extra 1024Wh to your DELTA 3 or DELTA 3 Plus.
  • Long-Lasting Performance: Up to 10 years of daily use with 4000+ charging cycles.
  • Plug-and-Play: Seamlessly integrates with your existing power station.
  • Smart Monitoring: Use the EcoFlow app to control and monitor the battery.
  • Compact Design: 1/3 smaller than the DELTA 2 power pack, saving space.

Please Note: All EcoFlow product shipping methods and prices are subject to change after checkout. If you are placing an order for delivery outside of the 48 contiguous United States, please contact us for a custom shipping quote prior to completing your purchase.

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Description

Expandable Capacity

The EcoFlow DELTA 3 Smart Extra Battery allows you to increase the capacity of your DELTA 3 or DELTA 3 Plus by an additional 1024Wh. This expansion is ideal for home backup, RVing, outdoor adventures, and everyday use, providing reliable power when you need it most.

Long-Lasting Performance

Equipped with advanced LFP (LiFePO₄) battery chemistry, the DELTA 3 Smart Extra Battery offers a lifespan of up to 4000 complete charging cycles before reaching 80% of its original capacity. This translates to approximately 10 years of daily use, ensuring a durable and dependable power source.

Plug-and-Play Integration

Designed for ease of use, this extra battery requires no complex setup. Simply connect it to your existing DELTA 3 or DELTA 3 Plus power station to immediately enhance your energy storage capabilities. The plug-and-play system ensures a hassle-free experience.

Smart Monitoring and Control

With the EcoFlow app, you can monitor and control the DELTA 3 Smart Extra Battery remotely. The app provides real-time information on battery status, including charge levels and remaining runtime, allowing you to manage your power usage efficiently.

Compact and Space-Saving Design

Despite its substantial capacity, the DELTA 3 Smart Extra Battery boasts a compact design, being 1/3 smaller than the DELTA 2 power pack. This space-saving feature makes it convenient to store and transport, fitting seamlessly into various settings without occupying much room

Technical Specifications

Dimensions
  • 15.7 × 8.0 × 7.8 in. (397.6 × 202 × 198 mm)
Weight
  • 21.2 lb (9.6 kg)
Durability
  • Operating Temperature: 20°C-30°C (68°F-86°F)
  • Charge Temperature: 0°C-45°C (32°F-113°F)
  • Discharge Temperature: –10°C to 45°C (14°F-113°F)
Included
  • EcoFlow DELTA 3 smart extra battery ×1
  • EcoFlow DELTA 3 extra battery cable ×1
  • Manuals and warranty card ×1
Battery
  • Capacity: 1024Wh (51.2V⎓20Ah)
  • Cycle Life: 4000 cycles to 80+% capacity
  • Battery Chemistry: LFP (LiFePO4 battery)
  • Output Port: 40V-58.4V⎓48A Max
  • Input Port: 40V-58.4V⎓24A Max
Additional
  • Compatible with: EcoFlow DELTA 3 Series
  • LED: Status Led
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
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Overall Rating
97%
of customers that buy
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them a 4 or 5-Star rating.
Verified Buyer
June 9, 2025 by Shantelle P. (IN, United States)
“The device worked either outside or inside, but did not cover both areas simultaneously, no matter where it was set up at. Connection also did not stay on consistently on devices.”
Verified Buyer
June 7, 2025 by Walter R. (California, United States)
“all good. easy and reliable.”
Verified Buyer
June 7, 2025 by Kenneth (OH, United States)
“An important tool in a variety of situations.”
Verified Buyer
June 7, 2025 by Frank D. (TX, United States)
“Excellent service. Will certainly recommend.”
Verified Buyer
June 6, 2025 by Enrique N. (Murcia, Spain)
“event my issue was not resolved, but the service I was provided was excellent , hope to continue working with them.

it looks the device I bought was not working properly.”