Head to head
Goal Zero Yeti 1500X vs EcoFlow DELTA 2 Max
EcoFlow DELTA 2 Max stores more energy (2,048 Wh), and it also has the higher continuous output at 2,400 W.
| Goal Zero Yeti 1500X | EcoFlow DELTA 2 Max | |
|---|---|---|
| Capacity | 1,516 Wh | 2,048 Wh |
| Usable at 85% | 1,289 Wh | 1,741 Wh |
| Continuous output | 2,000 W | 2,400 W |
| Motor surge used | 3,500 W | 4,800 W |
| Resistive boost | None applied | X-Boost 3,400 W |
| Chemistry | NMC | LiFePO4 |
| Cycle life | 500 to 80% | 3,000 to 80%+ |
| Weight | Not published | 50 lb |
| Dimensions | Not published | 19.6 × 9.5 × 12 |
| Outlets | 2× 120 V AC, 2,000 W and 3,500 W surge, pure sine wave. USB-C PD at 60 W, USB-C at 18 W, 2 USB-A, a car port, and 12 V high-power ports. | 6 AC outlets, 2,400 W shared. 2 USB-C at 100 W, USB-A, a car outlet at 126 W, and 2 DC5521 ports. |
| Launch price | Not verified | Not verified |
| Source | Manufacturer page | Manufacturer page |
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Questions
How do the Goal Zero Yeti 1500X and the EcoFlow DELTA 2 Max compare?
EcoFlow DELTA 2 Max stores more energy (2,048 Wh), and it also has the higher continuous output at 2,400 W.
Which one runs longer?
Goal Zero Yeti 1500X has 1,289 Wh usable in Willrun's math (1,516 Wh × 0.85). EcoFlow DELTA 2 Max has 1,741 Wh usable. Runtime still depends on the appliance's average draw.
Can cycle life be ranked between them?
The cycle quotes do not share a published endpoint, or one of them is missing. Willrun does not rank 70% retention against 80% retention.
Where do the numbers come from?
Spec list: 1,516 Wh (10.8 V, 140.4 Ah), NMC, 500 cycles to 80% at 1C, 2 AC outlets at 2,000 W and 3,500 W surge. Weight was not in the spec block that was retrieved, so it is omitted. A shelf price was not recorded as a launch price. US spec table: 2,048 Wh, 6 outlets, 2,400 W total (surge 4,800 W), X-Boost 3,400 W, 50 lb, LFP, 3,000 cycles to 80%+. Surge and X-Boost are separate numbers, so the 4,800 W surge is used for motor checks.