EcoFlow DELTA 3 Ultra vs Pecron E3600LFP
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
Pecron E3600LFP costs $100 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Ultra holds 2% more energy (3072Wh vs 3000Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Ultra has 200W more surge headroom (7200W vs 7000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Pecron E3600LFP is 6.8 lb lighter (77 lb vs 83.8 lb).
- EcoFlow DELTA 3 Ultra is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
EcoFlow DELTA 3 Ultra
3kWh with 7200W surge at $1799 — this is whole-home territory at a mid-range price. The catch is the 800W solar input.
Best for: Grid-tied home backup where you recharge from the wall, not the sun.
Where it falls short:
- 800W solar input is low for 3kWh — slow off-grid refills
- 83.8 lb
Pecron E3600LFP
A 3kWh unit with 3,600W output and 2,500W solar input at a price well below the flagship majors — strong specs, smaller brand.
Best for: Whole-home backup buyers chasing capacity and solar input per dollar.
Where it falls short:
- 77 lb
- Brand support and resale trail the majors
| Spec | EcoFlow DELTA 3 Ultra | Pecron E3600LFP |
|---|---|---|
| Price | $1799 | $1699 |
| Capacity | 3072 Wh | 3000 Wh |
| Continuous output | 3600 W | 3600 W |
| Surge output | 7200 W | 7000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,500 |
| Weight (lighter wins) | 83.8 lb | 77 lb |
| Max solar | 800 W | 2500 W |
| Recharge time (faster wins) | 1h 30m | 2h |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 Ultra | Pecron E3600LFP |
|---|---|---|
| Refrigerator | 43.5 hrs | 42.5 hrs |
| Mini fridge | 82.9 hrs | 81.0 hrs |
| Chest freezer | 32.6 hrs | 31.9 hrs |
| CPAP machine | 65.3 hrs | 63.8 hrs |
| Sump pump | 3.3 hrs | 3.2 hrs |