EcoFlow DELTA 3 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
EcoFlow DELTA 3 costs $50 less. Whether that gap is worth closing depends on what you need to run.
- Allpowers R1500 holds 13% more energy (1152Wh vs 1024Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 has 600W more surge headroom (3600W vs 3000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 3 is 8.8 lb lighter (28.7 lb vs 37.5 lb).
- EcoFlow DELTA 3 is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
EcoFlow DELTA 3
The 1kWh class got a serious upgrade here. 3600W surge at $649 beats the older DELTA 2 on every axis that matters.
Best for: Anyone about to buy a DELTA 2 — this is the same money for materially better specs.
Where it falls short:
- Still only 1024Wh
- Solar input unchanged at 500W
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 3 | Allpowers R1500 |
|---|---|---|
| Price | $649 | $699 |
| Capacity | 1024 Wh | 1152 Wh |
| Continuous output | 1800 W | 1800 W |
| Surge output | 3600 W | 3000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,500 |
| Weight (lighter wins) | 28.7 lb | 37.5 lb |
| Max solar | 500 W | 700 W |
| Recharge time (faster wins) | 56 min | 1h 20m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 | Allpowers R1500 |
|---|---|---|
| Refrigerator | 14.5 hrs | 16.3 hrs |
| Mini fridge | 27.6 hrs | 31.1 hrs |
| Chest freezer | 10.9 hrs | 12.2 hrs |
| CPAP machine | 21.8 hrs | 24.5 hrs |
| Sump pump | 1.1 hrs | ❌ |