Goal Zero Yeti 1500X vs Anker 555 PowerHouse
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
Anker 555 PowerHouse costs $1300 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.
- Goal Zero Yeti 1500X has 2000W more surge headroom (3500W vs 1500W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker 555 PowerHouse is 15.7 lb lighter (29.9 lb vs 45.64 lb).
- Anker 555 PowerHouse uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Anker 555 PowerHouse 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 Anker 555 PowerHouse. 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
A 1kWh unit whose 1,000W output and slow charging show its age — the newer, cheaper Anker C1000 beats it on nearly every axis.
Best for: Only worth it steeply discounted against the C1000.
Where it falls short:
- 1,500W surge is low
- 200W solar input and a slow 138-minute recharge
| Spec | Goal Zero Yeti 1500X | Anker 555 PowerHouse |
|---|---|---|
| Price | $1999 | $699 |
| Capacity | 1516 Wh | 1024 Wh |
| Continuous output | 2000 W | 1000 W |
| Surge output | 3500 W | 1500 W |
| Battery | NMC | LiFePO4 |
| Rated cycles | 500 | 3,000 |
| Weight (lighter wins) | 45.64 lb | 29.9 lb |
| Max solar | 600 W | 200 W |
| Recharge time (faster wins) | 3h | 2h 18m |
Runtime head-to-head
| Appliance | Goal Zero Yeti 1500X | Anker 555 PowerHouse |
|---|---|---|
| Refrigerator | 21.5 hrs | 14.5 hrs |
| Mini fridge | 40.9 hrs | 27.6 hrs |
| Chest freezer | 16.1 hrs | 10.9 hrs |
| CPAP machine | 32.2 hrs | 21.8 hrs |
| Sump pump | 1.6 hrs | ❌ |