EcoFlow DELTA 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 DELTA 2 costs $1400 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R4000 holds 238% more energy (3456Wh vs 1024Wh), so it runs the same load proportionally longer.
- Allpowers R4000 has 3800W more surge headroom (6000W vs 2200W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 2 is 79.0 lb lighter (27 lb vs 106 lb).
- Allpowers R4000 is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
The value pick in the 1kWh class. Cheaper than the Anker C1000 with nearly identical capacity — but check the surge number before you buy.
Best for: Budget-conscious buyers running electronics and a fridge, with no motor-driven loads.
Where it falls short:
- X-Boost tops out at 2200W — the least surge headroom of any 1kWh unit we list
- 80-minute recharge is slower than Anker's 58
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 DELTA 2 | Allpowers R4000 |
|---|---|---|
| Price | $899 | $2299 |
| Capacity | 1024 Wh | 3456 Wh |
| Continuous output | 1800 W | 4000 W |
| Surge output | 2200 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 27 lb | 106 lb |
| Max solar | 500 W | 2000 W |
| Recharge time (faster wins) | 1h 20m | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 2 | Allpowers R4000 |
|---|---|---|
| Refrigerator | 14.5 hrs | 49.0 hrs |
| Mini fridge | 27.6 hrs | 93.3 hrs |
| Chest freezer | 10.9 hrs | 36.7 hrs |
| CPAP machine | 21.8 hrs | 73.4 hrs |
| Sump pump | ❌ | 3.7 hrs |