Goal Zero Yeti 1000X vs Growatt VITA 550
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
Growatt VITA 550 costs $800 less. Whether that gap is worth closing depends on what you need to run.
- Goal Zero Yeti 1000X holds 83% more energy (983Wh vs 538Wh), so it runs the same load proportionally longer.
- Goal Zero Yeti 1000X has 1800W more surge headroom (3000W vs 1200W) — that decides whether a fridge, pump or AC compressor will actually start.
- Growatt VITA 550 is 14.1 lb lighter (17.6 lb vs 31.68 lb).
- Growatt VITA 550 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Growatt VITA 550 is rated for 3,000 cycles vs 500 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the Goal Zero Yeti 1000X. 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 older X-series 1kWh. Rugged and expandable, but its Li-ion cells and 2-year warranty look dated next to the LiFePO4 6th-gen Yeti 1000.
Best for: Only at a discount against the newer LiFePO4 Yeti 1000.
Where it falls short:
- NMC — ~500 cycles vs 4,000 for the new Yeti 1000
- 2-year warranty
A tidy half-kWh unit with fast charging and a 1,200W surge that lets it start small appliances a 600W rating wouldn't suggest.
Best for: Campers who want fast charging and a bit of surge headroom at half a kWh.
Where it falls short:
- 538Wh is weekend-scale
- 3-year warranty
| Spec | Goal Zero Yeti 1000X | Growatt VITA 550 |
|---|---|---|
| Price | $1199 | $399 |
| Capacity | 983 Wh | 538 Wh |
| Continuous output | 1500 W | 600 W |
| Surge output | 3000 W | 1200 W |
| Battery | NMC | LiFePO4 |
| Rated cycles | 500 | 3,000 |
| Weight (lighter wins) | 31.68 lb | 17.6 lb |
| Max solar | 600 W | 300 W |
| Recharge time (faster wins) | 1h 50m | 1h |
Runtime head-to-head
| Appliance | Goal Zero Yeti 1000X | Growatt VITA 550 |
|---|---|---|
| Refrigerator | 13.9 hrs | 7.6 hrs |
| Mini fridge | 26.5 hrs | 14.5 hrs |
| Chest freezer | 10.4 hrs | 5.7 hrs |
| CPAP machine | 20.9 hrs | 11.4 hrs |
| Sump pump | ❌ | ❌ |