SHIPPING INCLUDED TO THE CONTIGUOUS U.S.

100% Secure Shopping 100% secure shopping
Reliable Warranty Reliable warranty
Shipping Included Shipping Included

EcoFlow DELTA 3 Series Smart Extra Battery - 2 pack

Costco Price
$949.99
Costco Price
$949.99
Sold out
Unit price
per 

  • Increase the capacity of DELTA 3 Plus/DELTA 3 with two extra 1024Wh *Please note that only one DELTA 3 Series Smart Extra Battery can be connected to the power station at a time.
  • 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.
  • With one of the most comprehensive 5-year warranties available, we go the extra mile to give you peace of mind.
  • Compatible with DELTA 2 and DELTA 3 series

Customer reviews

4.0 563 Reviews
  • 5 star
    75%
  • 4 star
    60%
  • 3 star
    10%
  • 2 star
    8%
  • 1 star
    1%
100% secure shopping
Reliable warranty
Shipping Included

Features of EcoFlow DELTA 3 Smart Extra Battery (Each)

Expandable Home Backup Power

Expandable Capacity

Increase The Capacity Of DELTA 3 Plus/DELTA 3 With An Extra 1024Wh(Each). Double The Capacity To Fit Your Energy Storage Needs, Ideal For Home Backup, RVing Outdoor Adventures, And Everyday Use. *The DELTA 3 Plus in the picture needs to be purchased separately.
Expandable Capacity

Same Power, More Compact.

With The Compact Design, The DELTA 3 Smart Extra Battery is 1/3 Smaller Than Its DELTA 2 Counterpart. It Can Also Be Securely Stacked On Top Of The Power Station To Save Space And Minimize Clutter.
Same Power, More Compact

10-year Lifespan with an LFP Battery

With The LFP Battery Chemistry, The DELTA 3 Smart Extra Battery Has A Lifespan Of 4000 Complete Cycles Until 80% Capacity. You'll Get Pretty Much 10 Years Of Power, Even If You Use It Every Day. That's 6x Longer Than Other Power Stations With A Similar Capacity And Output.
Energize Every Moment That Needs Electricity

Easy to Use

There's No Setup. Just Plug Into Your Power Station For More Energy Storage. Using The EcoFlow App, You Can Charge And Monitor The DELTA 3 Smart Extra Battery With Ease. *The DELTA 3 Plus in the picture needs to be purchased separately.
Easy to Use

What's in the box - 2 pack

Whats in the box

Specs

Capacity
1024Wh
Input
Extra Battery Port, 40V-58.4V 24A Max
Output
Extra Battery Port, 40V-58.4V 48A Max
Dimension
15.7x8x7.8 in, 398x200x198 mm
Weight
21.1 lb/9.6kg
Compatible with
DELTA 3 Plus/ DELTA 3/ DELTA 3 (1500)/ DELTA 2
Battery Chemistry
LFP
Cycle Life
4000 cycles to 80%

Manual

Paper IconEcoFlow DELTA 3 Smart Extra Battery User Manual (EN)
Click Here To Go Back To The Top of The Page