EcoFlow DELTA 3 Ultra vs Jackery Explorer 1000
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
Jackery Explorer 1000 costs $1050 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Ultra holds 207% more energy (3072Wh vs 1002Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Ultra has 5200W more surge headroom (7200W vs 2000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Jackery Explorer 1000 is 61.8 lb lighter (22 lb vs 83.8 lb).
- EcoFlow DELTA 3 Ultra uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA 3 Ultra is rated for 4,000 cycles vs 500 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the Jackery Explorer 1000. Its NMC cells are rated for 500 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
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
The original Explorer 1000 — light and popular, but its Li-ion cells are rated for only ~500 cycles, a fraction of the LiFePO4 v2 that replaced it.
Best for: Occasional users who find it much cheaper than the v2.
Where it falls short:
- ~500 cycles vs 4,000 for the v2
- 1,000W output and 200W solar input
| Spec | EcoFlow DELTA 3 Ultra | Jackery Explorer 1000 |
|---|---|---|
| Price | $1799 | $749 |
| Capacity | 3072 Wh | 1002 Wh |
| Continuous output | 3600 W | 1000 W |
| Surge output | 7200 W | 2000 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 500 |
| Weight (lighter wins) | 83.8 lb | 22 lb |
| Max solar | 800 W | 200 W |
| Recharge time (faster wins) | 1h 30m | 1h 42m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 Ultra | Jackery Explorer 1000 |
|---|---|---|
| Refrigerator | 43.5 hrs | 14.2 hrs |
| Mini fridge | 82.9 hrs | 27.0 hrs |
| Chest freezer | 32.6 hrs | 10.6 hrs |
| CPAP machine | 65.3 hrs | 21.3 hrs |
| Sump pump | 3.3 hrs | ❌ |