Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh. Double the
capacity to meet your energy storage needs—ideal for home backup, RVing, outdoor
adventures, and everyday use.
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
EcoFlow DELTA 3 Smart Extra BatteryExpandable Capacity Increase the capacity of DELTA 3 Plus DELTA 3 with an extra 1024Wh. Double the capacity to meet your energy storage needsideal for home backup, RVing, outdoor adventures, and everyday use. Compact Design 1 3 smaller than the power station, but with the same power. It can also be securely stacked on top of the power station to save space and reduce clutter. 10 Year Lifespan with an LFP Battery The LFP battery chemistry enables 4000+
Expandable Capacity
Compact Design
1/3 smaller than the power station, but with the same power. It can also be securely
stacked on top of the power station to save space and reduce clutter.
10-Year Lifespan with an LFP Battery
The LFP battery chemistry enables 4000+ complete cycles until it reaches 80%
capacity. That means about 10 years of daily use—6× longer than other power
stations with similar capacity and output.
Easy to Use
A plug-and-play system with no setup required. Simply connect it to your power
station for more energy storage. Use the EcoFlow app to monitor and control the
DELTA 3 Smart Extra Battery with ease.
Control From Anywhere
Get all the details—battery percentage, remaining recharge time, hours left, and
more—right on the built-in screen or from the EcoFlow app, wherever you are.
Convenient Recharging
Recharge the Extra Battery by connecting it to the power station's Extra Battery port.
Use AC outlets, portable solar panels, or the Smart Generator for versatile charging
options.
Specs
What’s in the box
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
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Product Reviews
★★★★★ 5
Lovely
Color: White
Cute functional for a nice evening bag. Fun also hold more than some of my small bags. Can’t wait to use it this week.
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Buy it!!
Color: Black
I love this bag . It is big enough to hold my things, good quality, the strap is a good length and can be adjusted , and I got alot of compliments.
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Reviewed in the United States on February 20, 2026
★★★★★ 5
I love it
Color: Black, Color: Black
It’s super cutee I love it so small and cute it is very spacious for the side and it comes with a shoulder strap
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Reviewed in the United States on May 6, 2026
★★★★★ 5
The price and quality
Color: Black, Color: Black
This is a gift for my granddaughter; this purse is so cute and the fact that you can carry it by the handle or wear it hanging on the shoulder.
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Reviewed in the United States on December 9, 2025
★★★★★ 1
Horrible
Color: Black
This product came broken twice…. Do not get this bag
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Reviewed in the United States on March 5, 2026