EcoFlow DELTA 3 Max 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 3 Max costs $1200 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R4000 holds 69% more energy (3456Wh vs 2048Wh), so it runs the same load proportionally longer.
- Allpowers R4000 has 1200W more surge headroom (6000W vs 4800W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 3 Max is 50.9 lb lighter (55.1 lb vs 106 lb).
- EcoFlow DELTA 3 Max is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
EcoFlow DELTA 3 Max
The value leader in the 2kWh class. Same 4800W surge as the DELTA 2 Max at $500 less, with 1000 more cycles.
Best for: Home backup buyers who want compressor-starting surge without paying flagship prices.
Where it falls short:
- 55 lb is a two-hand lift
- Only marginally lighter than heavier rivals
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 3 Max | Allpowers R4000 |
|---|---|---|
| Price | $1099 | $2299 |
| Capacity | 2048 Wh | 3456 Wh |
| Continuous output | 2400 W | 4000 W |
| Surge output | 4800 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,500 |
| Weight (lighter wins) | 55.1 lb | 106 lb |
| Max solar | 1000 W | 2000 W |
| Recharge time (faster wins) | 1h 22m | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 Max | Allpowers R4000 |
|---|---|---|
| Refrigerator | 29.0 hrs | 49.0 hrs |
| Mini fridge | 55.3 hrs | 93.3 hrs |
| Chest freezer | 21.8 hrs | 36.7 hrs |
| CPAP machine | 43.5 hrs | 73.4 hrs |
| Sump pump | 2.2 hrs | 3.7 hrs |