EcoFlow · Portable power station Below recent norm
EcoFlow DELTA Pro 3 Smart Extra Battery
$1,814
$0.44 / Wh
$1,899
✓ In stock
✓ Price checked 2026-10-12
LFP · 4,000 cycles
| Capacity | 4,096 Wh |
|---|---|
| $/Wh today | $0.44 |
| Chemistry | LFP |
| Rated cycles | 4,000 cycles |
| Weight | 72.8 lbs |
| Expandable | Yes, to 12,000Wh |
| Standalone use | No — link port only |
| Recharge without station | No — only through the station |
| Availability | In stock |
Today's price verdict
Below recent norm — 4% below its typical price
Today's price is below its 90-day median, but not by enough to be unusually low.
- 90-day median
- $1,899
- Recorded low
- $1,699 on 2026-07-07
- Advertised discount
- −4% from the store's comparison price
- Days tracked
- 97
Price history
Full tech specifications 14 specs
Battery
| Chemistry | LFP |
|---|---|
| Capacity | 4,096Wh |
| Rated cycles | 4,000 |
| Expandable | Yes‡ |
| Max expanded | 12,000Wh |
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 | 72.8‡ |
|---|---|
| Warranty | 5 years‡ |
‡ Sourced from EcoFlow's published tech specs; not independently verified. Core figures (capacity, chemistry, cycles, output) are editorially verified.
Head-to-head comparisons
- EcoFlow DELTA Pro 3 Smart Extra Battery vs Battery Pack 3600 Plus
- EcoFlow DELTA Pro 3 Smart Extra Battery vs Jackery Battery Pack 5000 Plus
- EcoFlow DELTA Pro 3 Smart Extra Battery vs B500K for Apex 300
- EcoFlow DELTA Pro 3 Smart Extra Battery vs B500K for AC300/AC200L
- EcoFlow DELTA Pro 3 Smart Extra Battery vs B500K for AC500