EcoFlow DELTA 3 Smart Extra Battery
Double DELTA 3 runtime with a plug-and-play 1,024Wh smart extra battery.
- 1,024Wh extra capacity
- LFP battery chemistry
- 4,000+ cycle class
- Plug-and-play with DELTA 3 and DELTA 3 Plus
- EcoFlow app monitoring through the system
Use with a compatible main unit. Compatibility should be checked before ordering.
Out of stock
Is this expansion battery right for you?
Good fit if:
- You already own a compatible EcoFlow main unit.
- You want to extend runtime for longer outages or trips.
- You have checked the connector and model compatibility.
Not ideal if:
- You need a standalone power station.
- You have not confirmed compatibility with your existing setup.
- You want built-in AC sockets directly on the battery.
DELTA 3 Smart Extra Battery at a Glance
A Closer Look at the DELTA 3 Smart Extra Battery
This expansion battery is an important cross-sell for customers buying into the DELTA 3 platform. It should be positioned clearly as an expansion product, not a standalone portable power station.
Why Buy From VoltReady™
UK-Based Business
VoltReady is a UK-based portable-power specialist serving customers across the United Kingdom.
Manufacturer Warranty
Products include manufacturer-backed warranty cover, with the exact terms shown clearly on each product page.
Flexible Ways to Pay
Pay securely by card, Apple Pay, Google Pay, Klarna or Clearpay. Available options depend on your order and eligibility.
UK Customer Support
Get straightforward help before and after your purchase through live chat or email.
Everything important, clearly organised
Key Features
Technical Specifications
What’s in the Box
FAQs
Can it be used by itself?
It is intended as an extra battery for compatible EcoFlow DELTA 3 systems, not as a standalone AC power station.
How much capacity does it add?
It adds 1,024Wh to supported DELTA 3-family systems.
Shipping, Returns & Warranty
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