EcoFlow DELTA Pro 3 Smart Extra Battery (4096Wh)
The short answer
EcoFlow lists this part for one power station on this site. Here is what they say.
What the maker says
Up to two DELTA Pro 3 Smart Extra Batteries; backwards compatible with DELTA Pro Smart Extra Battery | named extra-battery model
These are the maker's exact words, copied from their own page. We do not reword them. That way you can see for yourself how strong the claim is. "Sold with this model" is a weaker claim than "works with this model".
Listed for these power stations
Listed for one model does not mean it fits another, even in the same family. Check your exact model before you buy.
Caveats recorded with this accessory
- Use the current regional manual and approved cable path.
- Maximum quantity NOT stated on this page.
Buying it
Verified listing
EF ECOFLOW DELTA Pro 3 4096Wh Extra Battery, Expansion Lifepo4 Battery
ASIN B0D149GKCZ · $1,899.00 when checked on 2026-08-13
Title states manufacturer 'EcoFlow' and every distinguishing token in our name (4096wh). Treat the price as the figure at capture time, not today's.
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Listings we rejected
Searching for this part turns up bundles and lookalikes. Here is what we checked and turned down, so you can avoid the same mistakes.
| Listing | Price | Why it is the wrong product |
|---|---|---|
| EF ECOFLOW Delta 3 Series Smart Extra Battery, 1024Wh LiFePO4 Battery | $409 | Listing title is missing distinguishing detail(s) our accessory name states: 4096Wh. |
| EF ECOFLOW DELTA Pro 3600Wh Extra Battery | $1,199 | Listing title is missing distinguishing detail(s) our accessory name states: 4096Wh. |
| EF ECOFLOW Portable Power Station DELTA 3 MAX Plus Extra Battery, 2048Wh | $899 | Listing title marks this as a bundle/combo, not the bare accessory. |
| EF ECOFLOW 8kWh Portable Power Station: DELTA Pro 3 with Extra Battery | $4,459 | Listing title marks this as a bundle/combo, not the bare accessory. |