EcoFlow DELTA Pro 3 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
Allpowers R4000 costs $1400 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro 3 holds 19% more energy (4096Wh vs 3456Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro 3 has 2000W more surge headroom (8000W vs 6000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Allpowers R4000 is 7.0 lb lighter (106 lb vs 113 lb).
- EcoFlow DELTA Pro 3 is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
EcoFlow DELTA Pro 3
The most complete large unit here. 4096Wh, 4000W, 8000W surge and 2600W of solar — it does everything the F3800 does with less weight.
Best for: Whole-home backup buyers who want maximum solar recharge speed.
Where it falls short:
- $3,699 is a serious investment
- Overkill unless you're backing up a whole home
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 DELTA Pro 3 | Allpowers R4000 |
|---|---|---|
| Price | $3699 | $2299 |
| Capacity | 4096 Wh | 3456 Wh |
| Continuous output | 4000 W | 4000 W |
| Surge output | 8000 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,500 |
| Weight (lighter wins) | 113 lb | 106 lb |
| Max solar | 2600 W | 2000 W |
| Recharge time (faster wins) | 1h 40m | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro 3 | Allpowers R4000 |
|---|---|---|
| Refrigerator | 58.0 hrs | 49.0 hrs |
| Mini fridge | 110.5 hrs | 93.3 hrs |
| Chest freezer | 43.5 hrs | 36.7 hrs |
| CPAP machine | 87.0 hrs | 73.4 hrs |
| Sump pump | 4.4 hrs | 3.7 hrs |