EcoFlow DELTA Max 2000 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 $400 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Max 2000 holds 75% more energy (2016Wh vs 1152Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Max 2000 has 400W more surge headroom (3400W vs 3000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Allpowers R1500 is 10.5 lb lighter (37.5 lb vs 48 lb).
- Allpowers R1500 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Allpowers R1500 is rated for 3,500 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA Max 2000. Its NMC cells are rated for 800 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
The previous-generation 2kWh EcoFlow. Still capable and expandable, but its NMC cells and 800-cycle rating are a real step below the LiFePO4 DELTA 3 that replaced it.
Best for: Only at a steep discount against the DELTA 3 Max.
Where it falls short:
- NMC — roughly 800 cycles vs 4,000 for the DELTA 3 Max
- 2-year warranty
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 Max 2000 | Allpowers R1500 |
|---|---|---|
| Price | $1099 | $699 |
| Capacity | 2016 Wh | 1152 Wh |
| Continuous output | 2400 W | 1800 W |
| Surge output | 3400 W | 3000 W |
| Battery | NMC | LiFePO4 |
| Rated cycles | 800 | 3,500 |
| Weight (lighter wins) | 48 lb | 37.5 lb |
| Max solar | 800 W | 700 W |
| Recharge time (faster wins) | 1h 48m | 1h 20m |
Runtime head-to-head
| Appliance | EcoFlow DELTA Max 2000 | Allpowers R1500 |
|---|---|---|
| Refrigerator | 28.6 hrs | 16.3 hrs |
| Mini fridge | 54.4 hrs | 31.1 hrs |
| Chest freezer | 21.4 hrs | 12.2 hrs |
| CPAP machine | 42.8 hrs | 24.5 hrs |
| Sump pump | 2.1 hrs | ❌ |