EcoFlow DELTA Pro 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 $1200 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro holds 137% more energy (3600Wh vs 1516Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro has 3700W more surge headroom (7200W vs 3500W) — that decides whether a fridge, pump or AC compressor will actually start.
- Goal Zero Yeti 1500X is 53.4 lb lighter (45.64 lb vs 99 lb).
- EcoFlow DELTA Pro uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA Pro is rated for 3,500 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 previous-generation flagship, now mostly worth buying on discount. The Pro 3 beats it on nearly every axis.
Best for: Bargain hunters who find it steeply discounted against the Pro 3.
Where it falls short:
- 99 lb and 165-minute recharge — both beaten by the Pro 3
- Aging platform; expect it to be phased out
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 | Goal Zero Yeti 1500X |
|---|---|---|
| Price | $3199 | $1999 |
| Capacity | 3600 Wh | 1516 Wh |
| Continuous output | 3600 W | 2000 W |
| Surge output | 7200 W | 3500 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,500 | 500 |
| Weight (lighter wins) | 99 lb | 45.64 lb |
| Max solar | 1600 W | 600 W |
| Recharge time (faster wins) | 2h 45m | 3h |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro | Goal Zero Yeti 1500X |
|---|---|---|
| Refrigerator | 51.0 hrs | 21.5 hrs |
| Mini fridge | 97.1 hrs | 40.9 hrs |
| Chest freezer | 38.3 hrs | 16.1 hrs |
| CPAP machine | 76.5 hrs | 32.2 hrs |
| Sump pump | 3.8 hrs | 1.6 hrs |