Goal Zero Yeti 6000X 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 $5100 less. Whether that gap is worth closing depends on what you need to run.
- Goal Zero Yeti 6000X holds 1028% more energy (6071Wh vs 538Wh), so it runs the same load proportionally longer.
- Goal Zero Yeti 6000X has 2300W more surge headroom (3500W vs 1200W) — that decides whether a fridge, pump or AC compressor will actually start.
- Growatt VITA 550 is 88.4 lb lighter (17.6 lb vs 106 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 6000X. 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.
A huge-capacity home unit whose weakness is the same as its siblings: NMC cells with a low cycle count, at a flagship price.
Best for: Large-capacity backup for infrequent, deep-discharge use.
Where it falls short:
- NMC — ~500 cycles
- 2,000W output is low for the capacity
- 106 lb, 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 6000X | Growatt VITA 550 |
|---|---|---|
| Price | $5499 | $399 |
| Capacity | 6071 Wh | 538 Wh |
| Continuous output | 2000 W | 600 W |
| Surge output | 3500 W | 1200 W |
| Battery | NMC | LiFePO4 |
| Rated cycles | 500 | 3,000 |
| Weight (lighter wins) | 106 lb | 17.6 lb |
| Max solar | 600 W | 300 W |
| Recharge time (faster wins) | 4h 30m | 1h |
Runtime head-to-head
| Appliance | Goal Zero Yeti 6000X | Growatt VITA 550 |
|---|---|---|
| Refrigerator | 86.0 hrs | 7.6 hrs |
| Mini fridge | 163.8 hrs | 14.5 hrs |
| Chest freezer | 64.5 hrs | 5.7 hrs |
| CPAP machine | 129.0 hrs | 11.4 hrs |
| Sump pump | 6.5 hrs | ❌ |