EcoFlow DELTA Pro vs Allpowers R1500
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 R1500 costs $2500 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro holds 213% more energy (3600Wh vs 1152Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro has 4200W more surge headroom (7200W vs 3000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Allpowers R1500 is 61.5 lb lighter (37.5 lb vs 99 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 R1500
A well-priced 1.1kWh with a real 1,800W output and fast charging, a common budget pick for home backup starter kits.
Best for: First-time backup buyers who want 1,800W output cheap.
Where it falls short:
- 37.5 lb for 1.1kWh
- Not expandable
| Spec | EcoFlow DELTA Pro | Allpowers R1500 |
|---|---|---|
| Price | $3199 | $699 |
| Capacity | 3600 Wh | 1152 Wh |
| Continuous output | 3600 W | 1800 W |
| Surge output | 7200 W | 3000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,500 | 3,500 |
| Weight (lighter wins) | 99 lb | 37.5 lb |
| Max solar | 1600 W | 700 W |
| Recharge time (faster wins) | 2h 45m | 1h 20m |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro | Allpowers R1500 |
|---|---|---|
| Refrigerator | 51.0 hrs | 16.3 hrs |
| Mini fridge | 97.1 hrs | 31.1 hrs |
| Chest freezer | 38.3 hrs | 12.2 hrs |
| CPAP machine | 76.5 hrs | 24.5 hrs |
| Sump pump | 3.8 hrs | ❌ |