EcoFlow DELTA Pro 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
Goal Zero Yeti 1500X costs $1700 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro 3 holds 170% more energy (4096Wh vs 1516Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro 3 has 4500W more surge headroom (8000W vs 3500W) — that decides whether a fridge, pump or AC compressor will actually start.
- Goal Zero Yeti 1500X is 67.4 lb lighter (45.64 lb vs 113 lb).
- EcoFlow DELTA Pro 3 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA Pro 3 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 Goal Zero Yeti 1500X. 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.
The most complete large unit here. 4096Wh, 4000W, 8000W surge and 2600W of solar — it does everything the F3800 does with less weight.
Best for: Whole-home backup buyers who want maximum solar recharge speed.
Where it falls short:
- $3,699 is a serious investment
- Overkill unless you're backing up a whole home
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 Pro 3 | Goal Zero Yeti 1500X |
|---|---|---|
| Price | $3699 | $1999 |
| Capacity | 4096 Wh | 1516 Wh |
| Continuous output | 4000 W | 2000 W |
| Surge output | 8000 W | 3500 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 500 |
| Weight (lighter wins) | 113 lb | 45.64 lb |
| Max solar | 2600 W | 600 W |
| Recharge time (faster wins) | 1h 40m | 3h |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro 3 | Goal Zero Yeti 1500X |
|---|---|---|
| Refrigerator | 58.0 hrs | 21.5 hrs |
| Mini fridge | 110.5 hrs | 40.9 hrs |
| Chest freezer | 43.5 hrs | 16.1 hrs |
| CPAP machine | 87.0 hrs | 32.2 hrs |
| Sump pump | 4.4 hrs | 1.6 hrs |