EcoFlow DELTA 3 vs Goal Zero Yeti 1500X
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 $1350 less. Whether that gap is worth closing depends on what you need to run.
- Goal Zero Yeti 1500X holds 48% more energy (1516Wh vs 1024Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 has 100W more surge headroom (3600W vs 3500W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 3 is 16.9 lb lighter (28.7 lb vs 45.64 lb).
- EcoFlow DELTA 3 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA 3 is rated for 4,000 cycles vs 500 — meaningful if you cycle it daily.
The Goal Zero Yeti 1500X is poor value on paper: 0.76 Wh per dollar versus 1.58 for the EcoFlow DELTA 3. Only worth it if you specifically need its higher output or 240V capability — otherwise you're paying a large premium per watt-hour.
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
The previous-generation flagship. Its NMC battery is the catch — far fewer cycles than the LiFePO4 units now around it, including its own replacement.
Best for: Only at a steep discount against the newer LiFePO4 Yeti 1500.
Where it falls short:
- NMC chemistry — roughly 500 cycles vs 4,000 for the new 1500
- 180-minute recharge is slow
- Only a 2-year warranty
| Spec | EcoFlow DELTA 3 | Goal Zero Yeti 1500X |
|---|---|---|
| Price | $649 | $1999 |
| Capacity | 1024 Wh | 1516 Wh |
| Continuous output | 1800 W | 2000 W |
| Surge output | 3600 W | 3500 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 500 |
| Weight (lighter wins) | 28.7 lb | 45.64 lb |
| Max solar | 500 W | 600 W |
| Recharge time (faster wins) | 56 min | 3h |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 | Goal Zero Yeti 1500X |
|---|---|---|
| Refrigerator | 14.5 hrs | 21.5 hrs |
| Mini fridge | 27.6 hrs | 40.9 hrs |
| Chest freezer | 10.9 hrs | 16.1 hrs |
| CPAP machine | 21.8 hrs | 32.2 hrs |
| Sump pump | 1.1 hrs | 1.6 hrs |