EcoFlow RIVER 2 vs Allpowers R4000
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
EcoFlow RIVER 2 costs $2100 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R4000 holds 1250% more energy (3456Wh vs 256Wh), so it runs the same load proportionally longer.
- Allpowers R4000 has 5400W more surge headroom (6000W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 is 98.3 lb lighter (7.7 lb vs 106 lb).
- Allpowers R4000 is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
EcoFlow RIVER 2
The cheapest way into LiFePO4. 256Wh is a device charger, but at under $200 with a 60-minute recharge it's hard to argue with.
Best for: Budget campers who just need to keep phones, cameras and a laptop alive.
Where it falls short:
- 300W output runs devices only
- 256Wh is a single evening of real use
Allpowers R4000
A large expandable unit that undercuts the EcoFlow Delta Pro 3 on price while matching its 4,000W output — the trade is a less established support network.
Best for: Whole-home backup buyers prioritising price per watt over brand.
Where it falls short:
- 106 lb
- Brand support and resale trail the big names
| Spec | EcoFlow RIVER 2 | Allpowers R4000 |
|---|---|---|
| Price | $199 | $2299 |
| Capacity | 256 Wh | 3456 Wh |
| Continuous output | 300 W | 4000 W |
| Surge output | 600 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 7.7 lb | 106 lb |
| Max solar | 110 W | 2000 W |
| Recharge time (faster wins) | 1h | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 | Allpowers R4000 |
|---|---|---|
| Refrigerator | ❌ | 49.0 hrs |
| Mini fridge | 6.9 hrs | 93.3 hrs |
| Chest freezer | ❌ | 36.7 hrs |
| CPAP machine | 5.4 hrs | 73.4 hrs |
| Sump pump | ❌ | 3.7 hrs |