Goal Zero Yeti 1500 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 $1300 less. Whether that gap is worth closing depends on what you need to run.
- Goal Zero Yeti 1500 holds 180% more energy (1505Wh vs 538Wh), so it runs the same load proportionally longer.
- Goal Zero Yeti 1500 has 2400W more surge headroom (3600W vs 1200W) — that decides whether a fridge, pump or AC compressor will actually start.
- Growatt VITA 550 is 35.1 lb lighter (17.6 lb vs 52.75 lb).
- Goal Zero Yeti 1500 is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.
Goal Zero Yeti 1500
The new-for-2026 LiFePO4 Yeti 1500 — a big durability and cycle-life upgrade over the older 1500X it replaces.
Best for: Home backup buyers who want Goal Zero's build with modern battery chemistry.
Where it falls short:
- 52.75 lb — a two-hand lift
- 600W solar input is modest for the capacity
Growatt VITA 550
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 1500 | Growatt VITA 550 |
|---|---|---|
| Price | $1699 | $399 |
| Capacity | 1505 Wh | 538 Wh |
| Continuous output | 2000 W | 600 W |
| Surge output | 3600 W | 1200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,000 |
| Weight (lighter wins) | 52.75 lb | 17.6 lb |
| Max solar | 600 W | 300 W |
| Recharge time (faster wins) | 1h 30m | 1h |
Runtime head-to-head
| Appliance | Goal Zero Yeti 1500 | Growatt VITA 550 |
|---|---|---|
| Refrigerator | 21.3 hrs | 7.6 hrs |
| Mini fridge | 40.6 hrs | 14.5 hrs |
| Chest freezer | 16.0 hrs | 5.7 hrs |
| CPAP machine | 32.0 hrs | 11.4 hrs |
| Sump pump | 1.6 hrs | ❌ |