EcoFlow · Portable power station Above normal
EcoFlow RIVER 3 Plus Smart Extra Battery
$159
$0.56 / Wh
Out of stock
✓ Price checked 2026-08-30
LFP · 3,000 cycles
| Capacity | 286 Wh |
|---|---|
| $/Wh today | $0.56 |
| Chemistry | LFP |
| Rated cycles | 3,000 cycles |
| Standalone use | Yes — USB-C 140W |
| Recharge without station | No — only through the station |
| Availability | Out of stock |
Today's price verdict
Above normal — 14% above its typical price
Today's price is more than 10% above its 90-day median.
- 90-day median
- $139
- Recorded low
- $139 on 2026-07-07
- Days tracked
- 54
Price history — 300EB
Price history — 600EB
Full tech specifications 11 specs
Battery
| Chemistry | LFP |
|---|---|
| Capacity | 286Wh |
| Rated cycles | 3000‡ |
| Max expanded | 858‡ |
Output
| AC outlets | 0 (link port only) |
|---|---|
| USB-C ports | 1× 140W |
| 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 |
‡ Sourced from EcoFlow's published tech specs; not independently verified. Core figures (capacity, chemistry, cycles, output) are editorially verified.
All configurations
| Configuration | Type | Price | Advertised | Deal | Stock |
|---|---|---|---|---|---|
| 300EB | Battery only | $159 | — | Above normal | out of stock |
| 600EB | Battery only | $249 | −22% | Normal price — matches recorded low | out of stock |
$/Wh comparisons on this site use battery-only prices; bundles include solar panels or accessories whose value isn't reflected in battery capacity.