EcoFlow DELTA Pro 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 $900 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro holds 4% more energy (3600Wh vs 3456Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro has 1200W more surge headroom (7200W vs 6000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA Pro is 7.0 lb lighter (99 lb vs 106 lb).
EcoFlow DELTA Pro
The previous-generation flagship, now mostly worth buying on discount. The Pro 3 beats it on nearly every axis.
Best for: Bargain hunters who find it steeply discounted against the Pro 3.
Where it falls short:
- 99 lb and 165-minute recharge — both beaten by the Pro 3
- Aging platform; expect it to be phased out
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 | Allpowers R4000 |
|---|---|---|
| Price | $3199 | $2299 |
| Capacity | 3600 Wh | 3456 Wh |
| Continuous output | 3600 W | 4000 W |
| Surge output | 7200 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,500 | 3,500 |
| Weight (lighter wins) | 99 lb | 106 lb |
| Max solar | 1600 W | 2000 W |
| Recharge time (faster wins) | 2h 45m | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro | Allpowers R4000 |
|---|---|---|
| Refrigerator | 51.0 hrs | 49.0 hrs |
| Mini fridge | 97.1 hrs | 93.3 hrs |
| Chest freezer | 38.3 hrs | 36.7 hrs |
| CPAP machine | 76.5 hrs | 73.4 hrs |
| Sump pump | 3.8 hrs | 3.7 hrs |