Goal Zero Yeti 1500X vs Ampace Andes 1500
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
Ampace Andes 1500 costs $1000 less. Whether that gap is worth closing depends on what you need to run.
- Goal Zero Yeti 1500X holds 4% more energy (1516Wh vs 1462Wh), so it runs the same load proportionally longer.
- Ampace Andes 1500 has 100W more surge headroom (3600W vs 3500W) — that decides whether a fridge, pump or AC compressor will actually start.
- Ampace Andes 1500 is 8.8 lb lighter (36.8 lb vs 45.64 lb).
- Ampace Andes 1500 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Ampace Andes 1500 is rated for 3,000 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 1.46 for the Ampace Andes 1500. Only worth it if you specifically need its higher output or 240V capability — otherwise you're paying a large premium per watt-hour.
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
Backed by an Amperex/CATL cell pedigree, the Andes 1500 stands out on charge speed — 0-80% in well under an hour — and a light 36.8 lb for 1.5kWh.
Best for: Buyers who prize fast charging and low weight at 1.5kWh.
Where it falls short:
- Newer brand with a thinner track record
- Not expandable
| Spec | Goal Zero Yeti 1500X | Ampace Andes 1500 |
|---|---|---|
| Price | $1999 | $999 |
| Capacity | 1516 Wh | 1462 Wh |
| Continuous output | 2000 W | 2000 W |
| Surge output | 3500 W | 3600 W |
| Battery | NMC | LiFePO4 |
| Rated cycles | 500 | 3,000 |
| Weight (lighter wins) | 45.64 lb | 36.8 lb |
| Max solar | 600 W | 1000 W |
| Recharge time (faster wins) | 3h | 55 min |
Runtime head-to-head
| Appliance | Goal Zero Yeti 1500X | Ampace Andes 1500 |
|---|---|---|
| Refrigerator | 21.5 hrs | 20.7 hrs |
| Mini fridge | 40.9 hrs | 39.5 hrs |
| Chest freezer | 16.1 hrs | 15.5 hrs |
| CPAP machine | 32.2 hrs | 31.1 hrs |
| Sump pump | 1.6 hrs | 1.6 hrs |