EcoFlow · Portable power station Normal price — matches recorded low
EcoFlow DELTA 3 Series Smart Extra Battery
$389
$0.38 / Wh
✓ In stock
✓ Price checked 2026-10-12
LFP · 4,000 cycles
| Capacity | 1,024 Wh |
|---|---|
| $/Wh today | $0.38 |
| Chemistry | LFP |
| Rated cycles | 4,000 cycles |
| Weight | 21.1 lbs |
| Standalone use | No — link port only |
| Recharge without station | No — only through the station |
| Availability | In stock |
Today's price verdict
Normal price — $389
This matches the lowest price in our record, but $389 has also been its typical price.
- 90-day median
- $389
- Recorded low
- $389 on 2026-07-07
- Days tracked
- 97
Price history — DELTA 3 Series Smart Extra Battery
Full tech specifications 12 specs
Battery
| Chemistry | LFP‡ |
|---|---|
| Capacity | 1,024Wh |
| Rated cycles | 4000‡ |
Output
| AC outlets | 0 (link port only) |
|---|---|
| USB-C ports | 0 (link port only) |
| USB-A ports | 0 (link port only) |
| 12V / car output | 0 (link port only) |
Input & charging
| AC input | None — recharges via the station only |
|---|---|
| Solar (PV) input | None — recharges via the station only |
| Car input | None — recharges via the station only |
General & physical
| Weight | 21.1‡ |
|---|---|
| Warranty | 5 years‡ |
‡ Sourced from EcoFlow's published tech specs; not independently verified. Core figures (capacity, chemistry, cycles, output) are editorially verified.